Oracle Pl/Sql table question..

Hi guys,
I have an Oracle PL/SQL question. I don't
know which board can i ask it. This is why
i am asking here.
I declare a PL/SQL table(traditional array),
and populate it in a session. Another user logged on with another session and wanted to access this PL/SQL table data, But He/she received "No Data Found".
Is the PL/SQL table session scope?
Pl/Sql table declared in Package Spec
and the procedures to populate and
access the data in/from this Pl/Sql table
are coded in package body.
Thanks...Ali
null

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Oracle SQL and PL/SQL interview questions.

Can anyone forward me all Oracle SQL and PL/SQL Interview questions and answers asap.
Many Thanks.
Bba

Dear Pal
I not sure all the all answers are correct. I got one mail couple yrs back. I am just sharing mail contents. Kindly keep question and compare answers.
1 Which is more faster - IN or EXISTS?
EXISTS is more faster than IN because EXISTS returns a Boolean value whereas IN returns a value.
2 Which datatype is used for storing graphics and images?
LONG RAW data type is used for storing BLOB's (binary large objects).
3 When do you use WHERE clause and when do you use HAVING clause?
HAVING clause is used when you want to specify a condition for a group function and it is written after GROUP BY clause. The WHERE clause is used when you want to specify a condition for columns, single row functions except group functions and it is written before GROUP BY clause if it is used.
4 What WHERE CURRENT OF clause does in a cursor?
LOOPSELECT num_credits INTO v_numcredits FROM classesWHERE dept=123 and course=101;UPDATE studentsSET current_credits=current_credits+v_numcreditsWHERE CURRENT OF X;END LOOPCOMMIT;END;
5 What should be the return type for a cursor variable.Can we use a scalar data type as return type?
The return type for a cursor must be a record type.It can be declared explicitly as a user-defined or %ROWTYPE can be used. eg TYPE t_studentsref IS REF CURSOR RETURN students%ROWTYPE
6 What is use of a cursor variable? How it is defined?
A cursor variable is associated with different statements at run time, which can hold different values at run time. Static cursors can only be associated with one run time query. A cursor variable is reference type (like a pointer in C).Declaring a cursor variable:TYPE type_name IS REF CURSOR RETURN return_type type_name is the name of the reference type,return_type is a record type indicating the types of the select list that will eventually be returned by the cursor variable.
7 What is the purpose of a cluster?
Oracle does not allow a user to specifically locate tables, since that is a part of the function of the RDBMS. However, for the purpose of increasing performance, oracle allows a developer to create a CLUSTER. A CLUSTER provides a means for storing data from different tables together for faster retrieval than if the table placement were left to the RDBMS.
8 What is the maximum buffer size that can be specified using the DBMS_OUTPUT.ENABLE function?
1,000,00
9 What is syntax for dropping a procedure and a function .Are these operations possible?
Drop Procedure procedure_nameDrop Function function_name
10 What is OCI. What are its uses?
Oracle Call Interface is a method of accesing database from a 3GL program. Uses--No precompiler is required,PL/SQL blocks are executed like other DML statements. The OCI library provides· -functions to parse SQL statemets· -bind input variables· -bind output variables· -execute statements· -fetch the results
11 What is difference between UNIQUE and PRIMARY KEY constraints?
A table can have only one PRIMARY KEY whereas there can be any number of UNIQUE keys. The columns that compose PK are automatically define NOT NULL, whereas a column that compose a UNIQUE is not automatically defined to be mandatory must also specify the column is NOT NULL.
12 What is difference between SUBSTR and INSTR?
SUBSTR returns a specified portion of a string eg SUBSTR('BCDEF',4) output BCDEINSTR provides character position in which a pattern is found in a string. eg INSTR('ABC-DC-F','-',2) output 7 (2nd occurence of '-')
13 What is difference between SQL and SQL*PLUS?
SQL*PLUS is a command line tool where as SQL and PL/SQL language interface and reporting tool. Its a command line tool that allows user to type SQL commands to be executed directly against an Oracle database. SQL is a language used to query the relational database(DML,DCL,DDL). SQL*PLUS commands are used to format query result, Set options, Edit SQL commands and PL/SQL.
14 What is difference between Rename and Alias?
Rename is a permanent name given to a table or column whereas Alias is a temporary name given to a table or column which do not exist once the SQL statement is executed.
15 What is difference between a formal and an actual parameter?
The variables declared in the procedure and which are passed, as arguments are called actual, the parameters in the procedure declaration. Actual parameters contain the values that are passed to a procedure and receive results. Formal parameters are the placeholders for the values of actual parameters
16 What is an UTL_FILE.What are different procedures and functions associated with it?
UTL_FILE is a package that adds the ability to read and write to operating system files. Procedures associated with it are FCLOSE, FCLOSE_ALL and 5 procedures to output data to a file PUT, PUT_LINE, NEW_LINE, PUTF, FFLUSH.PUT, FFLUSH.PUT_LINE,FFLUSH.NEW_LINE. Functions associated with it are FOPEN, ISOPEN.
17 What is a view ?
A view is stored procedure based on one or more tables, its a virtual table.
18 What is a pseudo column. Give some examples?
It is a column that is not an actual column in the table.eg USER, UID, SYSDATE, ROWNUM, ROWID, NULL, AND LEVEL.
19 What is a OUTER JOIN?
Outer Join--Its a join condition used where you can query all the rows of one of the tables in the join condition even though they dont satisfy the join condition.
20 What is a cursor?
Oracle uses work area to execute SQL statements and store processing information PL/SQL construct called a cursor lets you name a work area and access its stored information A cursor is a mechanism used to fetch more than one row in a Pl/SQl block.
21 What is a cursor for loop?
Cursor For Loop is a loop where oracle implicitly declares a loop variable, the loop index that of the same record type as the cursor's record.
22 What are various privileges that a user can grant to another user?
· SELECT· CONNECT· RESOURCES
23 What are various constraints used in SQL?
· NULL· NOT NULL· CHECK· DEFAULT
24 What are ORACLE PRECOMPILERS?
Using ORACLE PRECOMPILERS, SQL statements and PL/SQL blocks can be contained inside 3GL programs written in C,C++,COBOL,PASCAL, FORTRAN,PL/1 AND ADA.The Precompilers are known as Pro*C,Pro*Cobol,...This form of PL/SQL is known as embedded pl/sql,the language in which pl/sql is embedded is known as the host language. The prcompiler translates the embedded SQL and pl/sql ststements into calls to the precompiler runtime library.The output must be compiled and linked with this library to creater an executable.
25 What are different Oracle database objects?
· TABLES· VIEWS· INDEXES· SYNONYMS· SEQUENCES· TABLESPACES etc
26 What are different modes of parameters used in functions and procedures?
· IN· OUT· INOUT
27 What are cursor attributes?
· %ROWCOUNT· %NOTFOUND· %FOUND· %ISOPEN
28 What a SELECT FOR UPDATE cursor represent. [ANSWER]SELECT......FROM......FOR......UPDATE[OF column-reference][NOWAIT] The processing done in a fetch loop modifies the rows that have been retrieved by the cursor. A convenient way of modifying the rows is done by a method with two parts: the FOR UPDATE clause in the cursor declaration, WHERE CURRENT OF CLAUSE in an UPDATE or declaration statement.
29 There is a string 120000 12 0 .125 , how you will find the position of the decimal place?
INSTR('120000 12 0 .125',1,'.')output 13
30 There is a % sign in one field of a column. What will be the query to find it?
'' Should be used before '%'.
31 Suppose a customer table is having different columns like customer no, payments.What will be the query to select top three max payments?
SELECT customer_no, payments from customer C1
WHERE 3<=(SELECT COUNT(*) from customer C2
WHERE C1.payment <= C2.payment)
32 minvalue.sql Select the Nth lowest value from a table
select level, min('col_name') from my_table where level = '&n' connect by prior ('col_name') <
'col_name')
group by level;
Example:
Given a table called emp with the following columns:
-- id number
-- name varchar2(20)
-- sal number
-- For the second lowest salary:
-- select level, min(sal) from emp
-- where level=2
-- connect by prior sal < sal
-- group by level
33 maxvalue.sql Select the Nth Highest value from a table
select level, max('col_name') from my_table where level = '&n' connect by prior ('col_name') >
'col_name')
group by level;
Example:
Given a table called emp with the following columns:
-- id number
-- name varchar2(20)
-- sal number
-- For the second highest salary:
-- select level, max(sal) from emp
-- where level=2
-- connect by prior sal > sal
-- group by level
34 How you will avoid your query from using indexes?
SELECT * FROM emp
Where emp_no+' '=12345;
i.e you have to concatenate the column name with space within codes in the where condition.
SELECT /*+ FULL(a) */ ename, emp_no from emp
where emp_no=1234;
i.e using HINTS
35 How you will avoid duplicating records in a query?
By using DISTINCT
36 How you were passing cursor variables in PL/SQL 2.2?
In PL/SQL 2.2 cursor variables cannot be declared in a package.This is because the storage for a cursor variable has to be allocated using Pro*C or OCI with version 2.2, the only means of passing a cursor variable to a PL/SQL block is via bind variable or a procedure parameter.
37 How you open and close a cursor variable.Why it is required?
OPEN cursor variable FOR SELECT...Statement
CLOSE cursor variable In order to associate a cursor variable with a particular SELECT statement OPEN syntax is used. In order to free the resources used for the query CLOSE statement is used.
38 How will you delete duplicating rows from a base table?
delete from table_name where rowid not in (select max(rowid) from table group by duplicate_values_field_name); or
delete duplicate_values_field_name dv from table_name ta where rowid <(select min(rowid) from table_name tb where ta.dv=tb.dv);
39 How do you find the numbert of rows in a Table ?
A bad answer is count them (SELECT COUNT(*) FROM table_name)
A good answer is :-
'By generating SQL to ANALYZE TABLE table_name COUNT STATISTICS by querying Oracle System Catalogues (e.g. USER_TABLES or ALL_TABLES).
The best answer is to refer to the utility which Oracle released which makes it unnecessary to do ANALYZE TABLE for each Table individually.
40 Find out nth highest salary from emp table
SELECT DISTINCT (a.sal) FROM EMP A WHERE &N = (SELECT COUNT (DISTINCT (b.sal)) FROM EMP B WHERE a.sal<=b.sal);
For Eg:-
Enter value for n: 2
SAL
3700
41 Display the records between two range?
select rownum, empno, ename from emp where rowid in (select rowid from emp where rownum <=&upto minus select rowid from emp where rownum<&Start);
42 Display the number value in Words?
SQL> select sal, (to_char(to_date(sal,'j'), 'jsp'))
from emp;
the output like,
SAL (TO_CHAR(TO_DATE(SAL,'J'),'JSP'))
800 eight hundred
1600 one thousand six hundred
1250 one thousand two hundred fifty
If you want to add some text like, Rs. Three Thousand only.
SQL> select sal "Salary ",
(' Rs. '|| (to_char(to_date(sal,'j'), 'Jsp'))|| ' only.'))
"Sal in Words" from emp
Salary Sal in Words
800 Rs. Eight Hundred only.
1600 Rs. One Thousand Six Hundred only.
1250 Rs. One Thousand Two Hundred Fifty only.
43 Display Odd/ Even number of records
Odd number of records:
select * from emp where (rowid,1) in (select rowid, mod(rownum,2) from emp);
Output:-
1
3
5
Even number of records:
select * from emp where (rowid,0) in (select rowid, mod(rownum,2) from emp)
Output:-
2
4
6
44 Difference between procedure and function.
Functions are named PL/SQL blocks that return a value and can be called with arguments procedure a named block that can be called with parameter. A procedure all is a PL/SQL statement by itself, while a Function call is called as part of an expression.
45 Difference between NO DATA FOUND and %NOTFOUND
NO DATA FOUND is an exception raised only for the SELECT....INTO statements when the where clause of the querydoes not match any rows. When the where clause of the explicit cursor does not match any rows the %NOTFOUND attribute is set to TRUE instead.
46 Difference between database triggers and form triggers?
Data base trigger(DBT) fires when a DML operation is performed on a data base table. Form trigger(FT) Fires when user presses a key or navigates between fields on the screen
Can be row level or statement level No distinction between row level and statement level.
Can manipulate data stored in Oracle tables via SQL Can manipulate data in Oracle tables as well as variables in forms.
Can be fired from any session executing the triggering DML statements. Can be fired only from the form that define the trigger.
Can cause other database triggers to fire.Can cause other database triggers to fire, but not other form triggers.
47 Difference between an implicit & an explicit cursor.
PL/SQL declares a cursor implicitly for all SQL data manipulation statements, including quries that return only one row. However,queries that return more than one row you must declare an explicit cursor or use a cursor FOR loop.
Explicit cursor is a cursor in which the cursor name is explicitly assigned to a SELECT statement via the CURSOR...IS statement. An implicit cursor is used for all SQL statements Declare, Open, Fetch, Close. An explicit cursors are used to process multirow SELECT statements An implicit cursor is used to process INSERT, UPDATE, DELETE and single row SELECT. .INTO statements.
48 Can you use a commit statement within a database trigger?
No.
49 Can the default values be assigned to actual parameters?
Yes
50 Can cursor variables be stored in PL/SQL tables.If yes how. If not why?
No, a cursor variable points a row which cannot be stored in a two-dimensional PL/SQL table.
51 Can a primary key contain more than one columns?
Yes
52 Can a function take OUT parameters. If not why?
No. A function has to return a value,an OUT parameter cannot return a value.
53 What are various joins used while writing SUBQUERIES?
Self join-Its a join foreign key of a table references the same table. Outer Join--Its a join condition used where One can query all the rows of one of the tables in the join condition even though they don't satisfy the join condition.
Equi-join--Its a join condition that retrieves rows from one or more tables in which one or more columns in one table are equal to one or more columns in the second table.
54 Differentiate between TRUNCATE and DELETE
TRUNCATE deletes much faster than DELETE
TRUNCATE
DELETE
It is a DDL statement It is a DML statement
It is a one way trip,cannot ROLLBACK One can Rollback
Doesn't have selective features (where clause) Has
Doesn't fire database triggers Does
It requires disabling of referential constraints. Does not require
1 What is PL/SQL ?
PL/SQL is a procedural language that has both interactive SQL and procedural programming language constructs such as iteration, conditional branching.
2 Write the order of precedence for validation of a column in a table ?
I. done using Database triggers.
ii. done using Integarity Constraints.
I & ii.
Exception :
3 Where the Pre_defined_exceptions are stored ?
In the standard package.
Procedures, Functions & Packages ;
4 What are % TYPE and % ROWTYPE ? What are the advantages of using these over datatypes?
% TYPE provides the data type of a variable or a database column to that variable.
% ROWTYPE provides the record type that represents a entire row of a table or view or columns selected in the cursor.
The advantages are : I. Need not know about variable's data type
ii. If the database definition of a column in a table changes, the data type of a variable changes accordingly.
5 What will happen after commit statement ?
Cursor C1 is
Select empno,
ename from emp;
Begin
open C1; loop
Fetch C1 into
eno.ename;
Exit When
C1 %notfound;-----
commit;
end loop;
end;
The cursor having query as SELECT .... FOR UPDATE gets closed after COMMIT/ROLLBACK.
The cursor having query as SELECT.... does not get closed even after COMMIT/ROLLBACK.
6 What is the basic structure of PL/SQL ?
PL/SQL uses block structure as its basic structure. Anonymous blocks or nested blocks can be used in PL/SQL.
7 What is Raise_application_error ?
Raise_application_error is a procedure of package DBMS_STANDARD which allows to issue an user_defined error messages from stored sub-program or database trigger.
8 What is Pragma EXECPTION_INIT ? Explain the usage ?
The PRAGMA EXECPTION_INIT tells the complier to associate an exception with an oracle error. To get an error message of a specific oracle error.
e.g. PRAGMA EXCEPTION_INIT (exception name, oracle error number)
9 What is PL/SQL table ?
Objects of type TABLE are called "PL/SQL tables", which are modeled as (but not the same as) database tables, PL/SQL tables use a primary PL/SQL tables can have one column and a primary key.
Cursors
10 What is Overloading of procedures ?
The Same procedure name is repeated with parameters of different datatypes and parameters in different positions, varying number of parameters is called overloading of procedures.
e.g. DBMS_OUTPUT put_line
What is a package ? What are the advantages of packages ?
11 What is difference between a PROCEDURE & FUNCTION ?
A FUNCTION is always returns a value using the return statement.
A PROCEDURE may return one or more values through parameters or may not return at all.
12 What is difference between a Cursor declared in a procedure and Cursor declared in a package specification ?
A cursor declared in a package specification is global and can be accessed by other procedures or procedures in a package.
A cursor declared in a procedure is local to the procedure that can not be accessed by other procedures.
13 What is difference between % ROWTYPE and TYPE RECORD ?
% ROWTYPE is to be used whenever query returns a entire row of a table or view.
TYPE rec RECORD is to be used whenever query returns columns of different
table or views and variables.
E.g. TYPE r_emp is RECORD (eno emp.empno% type,ename emp ename %type
e_rec emp% ROWTYPE
cursor c1 is select empno,deptno from emp;
e_rec c1 %ROWTYPE.
14 What is an Exception ? What are types of Exception ?
Exception is the error handling part of PL/SQL block. The types are Predefined and user defined. Some of Predefined exceptions are.
CURSOR_ALREADY_OPEN
DUP_VAL_ON_INDEX
NO_DATA_FOUND
TOO_MANY_ROWS
INVALID_CURSOR
INVALID_NUMBER
LOGON_DENIED
NOT_LOGGED_ON
PROGRAM-ERROR
STORAGE_ERROR
TIMEOUT_ON_RESOURCE
VALUE_ERROR
ZERO_DIVIDE
OTHERS.
15 What is a stored procedure ?
A stored procedure is a sequence of statements that perform specific function.
16 What is a database trigger ? Name some usages of database trigger ?
Database trigger is stored PL/SQL program unit associated with a specific database table. Usages are Audit data modifications, Log events transparently, Enforce complex business rules Derive column values automatically, Implement complex security authorizations. Maintain replicate tables.
17 What is a cursor for loop ?
Cursor for loop implicitly declares %ROWTYPE as loop index,opens a cursor, fetches rows of values from active set into fields in the record and closes
when all the records have been processed.
eg. FOR emp_rec IN C1 LOOP
salary_total := salary_total +emp_rec sal;
END LOOP;
18 What is a cursor ? Why Cursor is required ?
Cursor is a named private SQL area from where information can be accessed. Cursors are required to process rows individually for queries returning multiple rows.
19 What happens if a procedure that updates a column of table X is called in a database trigger of the same table ?
Mutation of table occurs.
20 What are two virtual tables available during database trigger execution ?
The table columns are referred as OLD.column_name and NEW.column_name.
For triggers related to INSERT only NEW.column_name values only available.
For triggers related to UPDATE only OLD.column_name NEW.column_name values only available.
For triggers related to DELETE only OLD.column_name values only available.
21 What are two parts of package ?
The two parts of package are PACKAGE SPECIFICATION & PACKAGE BODY.
Package Specification contains declarations that are global to the packages and local to the schema.
Package Body contains actual procedures and local declaration of the procedures and cursor declarations.
22 What are the two parts of a procedure ?
Procedure Specification and Procedure Body.
23 What are the return values of functions SQLCODE and SQLERRM ?
SQLCODE returns the latest code of the error that has occurred.
SQLERRM returns the relevant error message of the SQLCODE.
24 What are the PL/SQL Statements used in cursor processing ?
DECLARE CURSOR cursor name, OPEN cursor name, FETCH cursor name INTO or Record types, CLOSE cursor name.
25 What are the modes of parameters that can be passed to a procedure ?
IN,OUT,IN-OUT parameters.
26 What are the datatypes a available in PL/SQL ?
Some scalar data types such as NUMBER, VARCHAR2, DATE, CHAR, LONG, BOOLEAN.
Some composite data types such as RECORD & TABLE.
27 What are the cursor attributes used in PL/SQL ?
%ISOPEN - to check whether cursor is open or not
% ROWCOUNT - number of rows fetched/updated/deleted.
% FOUND - to check whether cursor has fetched any row. True if rows are fetched.
% NOT FOUND - to check whether cursor has fetched any row. True if no rows are featched.
These attributes are proceeded with SQL for Implicit Cursors and with Cursor name for Explicit Cursors.
28 What are the components of a PL/SQL Block ?
Declarative part, Executable part and Exception part.
Datatypes PL/SQL
29 What are the components of a PL/SQL block ?
A set of related declarations and procedural statements is called block.
30 What are advantages fo Stored Procedures /
Extensibility,Modularity, Reusability, Maintainability and one time compilation.
1 What is PL/SQL ?
PL/SQL is a procedural language that has both interactive SQL and procedural programming language constructs such as iteration, conditional branching.
2 Write the order of precedence for validation of a column in a table ?
I. done using Database triggers.
ii. done using Integarity Constraints.
I & ii.
Exception :
3 Where the Pre_defined_exceptions are stored ?
In the standard package.
Procedures, Functions & Packages ;
4 What are % TYPE and % ROWTYPE ? What are the advantages of using these over datatypes?
% TYPE provides the data type of a variable or a database column to that variable.
% ROWTYPE provides the record type that represents a entire row of a table or view or columns selected in the cursor.
The advantages are : I. Need not know about variable's data type
ii. If the database definition of a column in a table changes, the data type of a variable changes accordingly.
5 What will happen after commit statement ?
Cursor C1 is
Select empno,
ename from emp;
Begin
open C1; loop
Fetch C1 into
eno.ename;
Exit When
C1 %notfound;-----
commit;
end loop;
end;
The cursor having query as SELECT .... FOR UPDATE gets closed after COMMIT/ROLLBACK.
The cursor having query as SELECT.... does not get closed even after COMMIT/ROLLBACK.
6 What is the basic structure of PL/SQL ?
PL/SQL uses block structure as its basic structure. Anonymous blocks or nested blocks can be used in PL/SQL.
7 What is Raise_application_error ?
Raise_application_error is a procedure of package DBMS_STANDARD which allows to issue an user_defined error messages from stored sub-program or database trigger.
8 What is Pragma EXECPTION_INIT ? Explain the usage ?
The PRAGMA EXECPTION_INIT tells the complier to associate an exception with an oracle error. To get an error message of a specific oracle error.
e.g. PRAGMA EXCEPTION_INIT (exception name, oracle error number)
9 What is PL/SQL table ?
Objects of type TABLE are called "PL/SQL tables", which are modeled as (but not the same as) database tables, PL/SQL tables use a primary PL/SQL tables can have one column and a primary key.
Cursors
10 What is Overloading of procedures ?
The Same procedure name is repeated with parameters of different datatypes and parameters in different positions, varying number of parameters is called overloading of procedures.
e.g. DBMS_OUTPUT put_line
What is a package ? What are the advantages of packages ?
11 What is difference between a PROCEDURE & FUNCTION ?
A FUNCTION is always returns a value using the return statement.
A PROCEDURE may return one or more values through parameters or may not return at all.
12 What is difference between a Cursor declared in a procedure and Cursor declared in a package specification ?
A cursor declared in a package specification is global and can be accessed by other procedures or procedures in a package.
A cursor declared in a procedure is local to the procedure that can not be accessed by other procedures.
13 What is difference between % ROWTYPE and TYPE RECORD ?
% ROWTYPE is to be used whenever query returns a entire row of a table or view.
TYPE rec RECORD is to be used whenever query returns columns of different
table or views and variables.
E.g. TYPE r_emp is RECORD (eno emp.empno% type,ename emp ename %type
e_rec emp% ROWTYPE
cursor c1 is select empno,deptno from emp;
e_rec c1 %ROWTYPE.
14 What is an Exception ? What are types of Exception ?
Exception is the error handling part of PL/SQL block. The types are Predefined and user defined. Some of Predefined exceptions are.
CURSOR_ALREADY_OPEN
DUP_VAL_ON_INDEX
NO_DATA_FOUND
TOO_MANY_ROWS
INVALID_CURSOR
INVALID_NUMBER
LOGON_DENIED
NOT_LOGGED_ON
PROGRAM-ERROR
STORAGE_ERROR
TIMEOUT_ON_RESOURCE
VALUE_ERROR
ZERO_DIVIDE
OTHERS.
15 What is a stored procedure ?
A stored procedure is a sequence of statements that perform specific function.
16 What is a database trigger ? Name some usages of database trigger ?
Database trigger is stored PL/SQL program unit associated with a specific database table. Usages are Audit data modifications, Log events transparently, Enforce complex business rules Derive column values automatically, Implement complex security authorizations. Maintain replicate tables.
17 What is a cursor for loop ?
Cursor for loop implicitly declares %ROWTYPE as loop index,opens a cursor, fetches rows of values from active set into fields in the record and closes
when all the records have been processed.
eg. FOR emp_rec IN C1 LOOP
salary_total := salary_total +emp_rec sal;
END LOOP;
18 What is a cursor ? Why Cursor is required ?
Cursor is a named private SQL area from where information can be accessed. Cursors are required to process rows individually for queries returning multiple rows.
19 What happens if a procedure that updates a column of table X is called in a database trigger of the same table ?
Mutation of table occurs.
20 What are two virtual tables available during database trigger execution ?
The table columns are referred as OLD.column_name and NEW.column_name.
For triggers related to INSERT only NEW.column_name values only available.
For triggers related to UPDATE only OLD.column_name NEW.column_name values only available.
For triggers related to DELETE only OLD.column_name values only available.
21 What are two parts of package ?
The two parts of package are PACKAGE SPECIFICATION & PACKAGE BODY.
Package Specification contains declarations that are global to the packages and local to the schema.
Package Body contains actual procedures and local declaration of the procedures and cursor declarations.
22 What are the two parts of a procedure ?
Procedure Specification and Procedure Body.
23 What are the return values of functions SQLCODE and SQLERRM ?
SQLCODE returns the latest code of the error that has occurred.
SQLERRM returns the relevant error message of the SQLCODE.
24 What are the PL/SQL Statements used in cursor processing ?
DECLARE CURSOR cursor name, OPEN cursor name, FETCH cursor name INTO or Record types, CLOSE cursor name.
25 What are the modes of parameters that can be passed to a procedure ?
IN,OUT,IN-OUT parameters.
26 What are the datatypes a available in PL/SQL ?
Some scalar data types such as NUMBER, VARCHAR2, DATE, CHAR, LONG, BOOLEAN.
Some composite data types such as RECORD & TABLE.
27 What are the cursor attributes used in PL/SQL ?
%ISOPEN - to check whether cursor is open or not
% ROWCOUNT - number of rows fetched/updated/deleted.
% FOUND - to check whether cursor has fetched any row. True if rows are fetched.
% NOT FOUND - to check whether cursor has fetched any row. True if no rows are featched.
These attributes are proceeded with SQL for Implicit Cursors and with Cursor name for Explicit Cursors.
28 What are the components of a PL/SQL Block ?
Declarative part, Executable part and Exception part.
Datatypes PL/SQL
29 What are the components of a PL/SQL block ?
A set of related declarations and procedural statements is called block.
30 What are advantages fo Stored Procedures /
Extensibility,Modularity, Reusability, Maintainability and one time compilation.
31 Name the tables where characteristics of Package, procedure and functions are stored ?
User_objects, User_Source and User_error.
32 Is it possible to use Transaction control Statements such a ROLLBACK or COMMIT in Database Trigger ? Why ?
It is not possible. As triggers are defined for each table, if you use COMMIT of ROLLBACK in a trigger, it affects logical transaction processing.
33 How packaged procedures and functions are called from the following?
a. Stored procedure or anonymous block
b. an application program such a PRC C, PRO COBOL
c. SQL *PLUS
a. PACKAGE NAME.PROCEDURE NAME (parameters);
variable := PACKAGE NAME.FUNCTION NAME (arguments);
EXEC SQL EXECUTE
b.
BEGIN
PACKAGE NAME.PROCEDURE NAME (parameters)
variable := PACKAGE NAME.FUNCTION NAME (arguments);
END;
END EXEC;
c. EXECUTE PACKAGE NAME.PROCEDURE if the procedures does not have any
out/in-out parameters. A function can not be called.
34 How many types of database triggers can be specified on a table ? What are they ?
Insert Update Delete
Before Row o.k. o.k. o.k.
After Row o.k. o.k. o.k.
Before Statement o.k. o.k. o.k.
After Statement o.k. o.k. o.k.
If FOR EACH ROW clause is specified, then the trigger for each Row affected by the statement.
If WHEN clause is specified, the trigger fires according to the returned Boolean value.
35 Give the structure of the procedure ?
PROCEDURE name (parameter list.....)
is
local variable declarations
BEGIN
Executable statements.
Exception.
exception handlers
end;
36 Give the structure of the function ?
FUNCTION name (argument list .....) Return datatype is
local variable declarations
Begin
executable statements
Exception
execution handlers
End;
37 Explain the usage of WHERE CURRENT OF clause in cursors ?
WHERE CURRENT OF clause in an UPDATE,DELETE statement refers to the latest row fetched from a cursor.
Database Triggers
38 Explain the two type of Cursors ?
There are two types of cursors, Implicit Cursor and Explicit Cursor.
PL/SQL uses Implicit Cursors for queries.
User defined cursors are called Explicit Cursors. They can be declared and used.
39 Explain how procedures and functions are called in a PL/SQL block ?
Function is called as part of an expression.
sal := calculate_sal ('a822');
procedure is called as a PL/SQL statement
calculate_bonus ('A822');
Programmatic Constructs
Last Update: September 06, 2004
1 What are the different types of PL/SQL program units that can be defined and stored in ORACLE database ?
Procedures and Functions,Packages and Database Triggers.
2 What are the differences between Database Trigger and Integrity constraints ?
A declarative integrity constraint is a statement about the database that is always true. A constraint applies to existing data in the table and any statement that manipulates the table.
A trigger does not apply to data loaded before the definition of the trigger, therefore, it does not guarantee all data in a table conforms to the rules established by an associated trigger.
A trigger can be used to enforce transitional constraints where as a declarative integrity constraint cannot be used.
3 What is difference between Procedures and Functions ?
A Function returns a value to the caller where as a Procedure does not.
4 What is Database Trigger ?
A Database Trigger is procedure (set of SQL and PL/SQL statements) that is automatically executed as a result of an insert in,update to, or delete from a table.
5 What is a Procedure ?
A Procedure consist of a set of SQL and PL/SQL statements that are grouped together as a unit to solve a specific problem or perform a set of related tasks.
6 What is a Package ?
A Package is a collection of related procedures, functions, variables and other package constructs together as a unit in the database.
7 What are the uses of Database Trigger ?
Database triggers can be used to automatic data generation, audit data modifications, enforce complex Integrity constraints, and customize complex security authorizations.
8 What are the advantages of having a Package ?
Increased functionality (for example,global package variables can be declared and used by any proecdure in the package) and performance (for example all objects of the package are parsed compiled, and loaded into memory once)
1 With which function of summary item is the compute at options required?
percentage of total functions.
2 Why is it preferable to create a fewer no. of queries in the data model?
Because for each query, report has to open a separate cursor and has to rebind, execute and fetch data.
3 Why is a Where clause faster than a group filter or a format trigger?
Because, in a where clause the condition is applied during data retrieval than after retrieving the data.
4 Which parameter can be used to set read level consistency across multiple queries?
Read only.
5 Which of the two views should objects according to possession?
view by structure.
6 Which of the above methods is the faster method?
performing the calculation in the query is faster.
7 Where is the external query executed at the client or the server?
At the server.
8 Where is a procedure return in an external pl/sql library executed at the client or at the server?
At the client.
9 When do you use data parameter type?
When the value of a data parameter being passed to a called product is always the name of the record group defined in the current form. Data parameters are used to pass data to produts invoked with the run_product built-in subprogram.
10 When a form is invoked with call_form, Does oracle forms issues a save point?
Yes
11 What are the important difference between property clause and visual attributes?
Named visual attributes differ only font, color & pattern attributes, property clauses can contain this and any other properties. You can change the appearance of objects at run time by changing the named visual attributes programmatically , property clause assignments cannot be changed programmatically. When an object is inheriting from both a property clause and named visual attribute, the named visual attribute settings take precedence, and any visual attribute properties in the class are ignored.
12 What use of command line parameter cmd file?
It is a command line argument that allows you to specify a file that contain a set of arguments for r20run.
13 What is WHEN-Database-record trigger?
Fires when oracle forms first marks a record as an insert or an update. The trigger fires as soon as oracle forms determines through validation that the record should be processed by the next post or commit as an insert or update. c generally occurs only when the operators modifies the first item in the record, and after the operator attempts to navigate out of the item.
14 What is use of term?
The term file which key is correspond to which oracle report functions.
15 What is trigger associated with the timer?
When-timer-expired.
16 What is the use of transactional triggers?
Using transactional triggers we can control or modify the default functionality of the oracle forms.
17 What is the use of place holder column?
A placeholder column is used to hold calculated values at a specified place rather than allowing is to appear in the actual row where it has to appear.
18 What is the use of image_zoom built-in?
To manipulate images in image items.
19 What is the use of hidden column?
A hidden column is used to when a column has to embed into boilerplate text.
20 What is the use of break group?
A break group is used to display one record for one group ones. While multiple related records in other group can be displayed.
21 What is the remove on exit property?
For a modelless window, it determines whether oracle forms hides the window automatically when the operators navigates to an item in the another window.
22 What is the purpose of the product order option in the column property sheet?
To specify the order of individual group evaluation in a cross products.
23 What is the maximum no of chars the parameter can store?
The maximum no of chars the parameter can store is only valid for char parameters, which can be upto 64K. No parameters default to 23Bytes and Date parameter default to 7Bytes.
24 What is the main diff. bet. Reports 2.0 & Reports 2.5?
Report 2.5 is object oriented.
25 What is the frame & repeating frame?
A frame is a holder for a group of fields. A repeating frame is used to display a set of records when the no. of records that are to displayed is not known before.
26 What is the difference between OLE Server & Ole Container?
An Ole server application creates ole Objects that are embedded or linked in ole Containers ex. Ole servers are ms_word & ms_excel. OLE containers provide a place to store, display and manipulate objects that are created by ole server applications. Ex. oracle forms is an example of an ole Container.
27 What is the difference between object embedding & linking in Oracle forms?
In Oracle forms, Embedded objects become part of the form module, and linked objects are references from a form module to a linked source file.
28 What is the difference between boiler plat images and image items?
Boiler plate Images are static images (Either vector or bit map) that you import from the file system or database to use a graphical elements in your form, such as company logos and maps. Image items are special types of interface controls that store and display either vector or bitmap images. Like other items that store values, image items can be either base table items(items that relate directly to database columns) or control items. The definition of an image item is stored as part of the form module FMB and FMX files, but no image file is actually associated with an image item until the item is populate at run time.
29 What is the difference between $$DATE$$ & $$DBDATE$$ $$DBDATE$$ retrieves the current database date $$date$$ retrieves the current operating system date.
30 What is the diff. when Flex mode is mode on and when it is off?
When flex mode is on, reports automatically resizes the parent when the child is resized.
31 What is the diff. when confine mode is on and when it is off?
When confine mode is on, an object cannot be moved outside its parent in the layout.
32 What is the diff. bet. setting up of parameters in reports 2.0 reports 2.5?
LOVs can be attached to parameters in the reports 2.5 parameter form.
33 What is the advantage of the library?
Libraries provide a convenient means of storing client-side program units and sharing them among multiple applications. Once you create a library, you can attach it to any other form, menu, or library modules. When you can call library program units from triggers menu items commands and user named routine, you write in the modules to which you have attach the library. When a library attaches another library, program units in the first library can reference program units in the attached library. Library support dynamic loading-that is library program units are loaded into an application only when needed. This can significantly reduce the run-time memory requirements of applications.
34 What is term?
The term is terminal definition file that describes the terminal form which you are using r20run.
35 What is system.coordination_operation?
It represents the coordination causing event that occur on the master block in master-detail relation.
36 What is synchronize?
It is a terminal screen with the internal state of the form. It updates the screen display to reflect the information that oracle forms has in its internal representation of the screen.
37 What is strip sources generate options?
Removes the source code from the library file and generates a library files that contains only pcode. The resulting file can be used for final deployment, but can not be subsequently edited in the designer. ex. f45gen module=old_lib.pll userid=scott/tiger strip_source YES output_file
38 What is relation between the window and canvas views?
Canvas views are the back ground objects on which you place the interface items (Text items), check boxes, radio groups etc.,) and boilerplate objects (boxes, lines, images etc.,) that operators interact with us they run your form . Each canvas views displayed in a window.
39 What is pop list?
The pop list style list item appears initially as a single field (similar to a text item field). When the operator selects the list icon, a list of available choices appears.
40 What is new_form built-in?
When one form invokes another form by executing new_form oracle form exits the first form and releases its memory before loading the new form calling new form completely replace the first with the second. If there are changes pending in the first form, the operator will be prompted to save them before the new form is loaded.
41 What is lexical reference? How can it be created?
Lexical reference is place_holder for text that can be embedded in a sql statements. A lexical reference can be created using & before the column or parameter name.
42 What is forms_DDL?
Issues dynamic Sql statements at run time, including server side pl/SQl and DDL
43 What is difference between open_form and call_form?
when one form invokes another form by executing open_form the first form remains displayed, and operators can navigate between the forms as desired. when one form invokes another form by executing call_form, the called form is modal with respect to the calling form. That is, any windows that belong to the calling form are disabled, and operators cannot navigate to them until they first exit the called form.
44 What is bind reference and how can it be created?
Bind reference are used to replace the single value in sql, pl/sql statements a bind reference can be created using a (:) before a column or a parameter name.
45 What is an user exit used for?
A way in which to pass control (and possibly arguments ) form Oracle report to another Oracle products of 3 GL and then return control ( and ) back to Oracle reports.
46 What is an OLE?
Object Linking & Embedding provides you with the capability to integrate objects from many Ms-Windows applications into a single compound document creating integrated applications enables you to use the features form .
47 What is an object group?
An object group is a container for a group of objects; you define an object group when you want to package related objects, so that you copy or reference them in other modules.
48 What is an anchoring object & what is its use?
An anchoring object is a print condition object which used to explicitly or implicitly anchor other objects to itself.
49 What is a User_exit?
Calls the user exit named in the user_exit_string. Invokes a 3Gl program by name which has been properly linked into your current oracle forms executable.
50 What is a timer?
Timer is an "internal time clock" that you can programmatically create to perform an action each time the timer expires.
51 What is a Text_io Package?
It allows you to read and write information to a file in the file system.
52 What is a text list?
The text list style list item appears as a rectangular box which displays the fixed number of values. When the text list contains values that can not be displayed, a vertical scroll bar appears, allowing the operator to view and select undisplayed values.
53 What is a property clause?
A property clause is a named object that contains a list of properties and their settings. Once you create a property clause you can base other object on it. An object based on a property can inherit the setting of any property in the clause that makes sense for that object.
54 What is a physical page ? & What is a logical page ?
A physical page is a size of a page. That is output by the printer. The logical page is the size of one page of the actual report as seen in the Previewer.
55 What is a library?
A library is a collection of subprograms including user named procedures, functions and packages.
56 What is a difference between pre-select and pre-query?
Fires during the execute query and count query processing after oracle forms constructs the select statement to be issued, but before the statement is actually issued. The pre-query trigger fires just before oracle forms issues the select statement to the database after the operator as define the example records by entering the query criteria in enter query mode. Pre-query trigger fires before pre-select trigger.
57 What is a combo box?
A combo box style list item combines the features found in list and text item. Unlike the pop list or the text list style list items, the combo box style list item will both display fixed values and accept one operator entered value.
58 What does the term panel refer to with regard to pages?
A panel is the no. of physical pages needed to print one logical page.
59 What are visual attributes?
Visual attributes are the font, color, pattern proprieties that you set for form and menu objects that appear in your application interface.
60 What are three panes that appear in the run time pl/sql interpreter?
1.Source pane. 2. interpreter pane. 3. Navigator pane.
Regards
B RANGARAJAN

Oracle 11g - External Table/SQL Developer Issue?

Oracle 11g - External Table/SQL Developer Issue?
==============================
I hope this is the right forum for this issue, if not let me, where to go.
We are using Oracle 11g (11.2.0.1.0) on (Platform : solaris[tm] oe (64-bit)), Sql Developer 3.0.04
We are trying to use oracle external table to load text files in .csv format. Here is our data look like.
======================
Date1,date2,Political party,Name, ROLE
20-Jan-66,22-Nov-69,Democratic,"John ", MMM
22-Nov-70,20-Jan-71,Democratic,"John Jr.",MMM
20-Jan-68,9-Aug-70,Republican,"Rick Ford Sr.", MMM
9-Aug-72,20-Jan-75,Republican,Henry,MMM
------ ALL NULL -- record
20-Jan-80,20-Jan-89,Democratic,"Donald Smith",MMM
======================
Our Expernal table structures is as follows
CREATE TABLE P_LOAD
DATE1 VARCHAR2(10),
DATE2 VARCHAR2(10),
POL_PRTY VARCHAR2(30),
P_NAME VARCHAR2(30),
P_ROLE VARCHAR2(5)
ORGANIZATION EXTERNAL
(TYPE ORACLE_LOADER
DEFAULT DIRECTORY P_EXT_TAB_D
ACCESS PARAMETERS (
RECORDS DELIMITED by NEWLINE
SKIP 1
FIELDS TERMINATED BY "," OPTIONALLY ENCLOSED BY '"' LDRTRIM
REJECT ROWS WITH ALL NULL FIELDS
MISSING FIELD VALUES ARE NULL
DATE1 CHAR (10) Terminated by "," ,
DATE2 CHAR (10) Terminated by "," ,
POL_PRTY CHAR (30) Terminated by "," ,
P_NAME CHAR (30) Terminated by "," OPTIONALLY ENCLOSED BY '"' ,
P_ROLE CHAR (5) Terminated by ","
LOCATION ('Input.dat')
REJECT LIMIT UNLIMITED;
It created successfully using SQL Developer
Here is the issue.
It is not loading the records, where fields are enclosed in '"' (Rec # 2,3,4,7)
It is loading all NULL value record (Rec # 6)
*** If we remove the '"' from input data, it loads all records including all NULL records
Log file has
KUP-04021: field formatting error for field P_NAME
KUP-04036: second enclosing delimiter not found
KUP-04101: record 2 rejected in file ....
Our questions
Why did "REJECT ROWS WITH ALL NULL FIELDS" not working?
Why did Terminated by "," OPTIONALLY ENCLOSED BY '"' not working?
Any idea?
Thanks in helping.

I don't think this is a SQLDeveloper issue. You will get better answers in the Database - General or perhaps SQL and PL/SQL forums.

Oracle 11g - External Table Issue SQL - PL/SQL?

Oracle 11g - External Table Issue?
=====================
I hope this is the right forum for this issue, if not let me, where to go.
We are using Oracle 11g (11.2.0.1.0) on (Platform : solaris[tm] oe (64-bit)), Sql Developer 3.0.04
We are trying to use oracle external table to load text files in .csv format. Here is our data look like.
======================
Date1,date2,Political party,Name, ROLE
20-Jan-66,22-Nov-69,Democratic,"John ", MMM
22-Nov-70,20-Jan-71,Democratic,"John Jr.",MMM
20-Jan-68,9-Aug-70,Republican,"Rick Ford Sr.", MMM
9-Aug-72,20-Jan-75,Republican,Henry,MMM
ALL NULL -- record
20-Jan-80,20-Jan-89,Democratic,"Donald Smith",MMM
======================
Our Expernal table structures is as follows
CREATE TABLE P_LOAD
DATE1 VARCHAR2(10),
DATE2 VARCHAR2(10),
POL_PRTY VARCHAR2(30),
P_NAME VARCHAR2(30),
P_ROLE VARCHAR2(5)
ORGANIZATION EXTERNAL
(TYPE ORACLE_LOADER
DEFAULT DIRECTORY P_EXT_TAB_D
ACCESS PARAMETERS (
RECORDS DELIMITED by NEWLINE
SKIP 1
FIELDS TERMINATED BY "," OPTIONALLY ENCLOSED BY '"' LDRTRIM
REJECT ROWS WITH ALL NULL FIELDS
MISSING FIELD VALUES ARE NULL
DATE1 CHAR (10) Terminated by "," ,
DATE2 CHAR (10) Terminated by "," ,
POL_PRTY CHAR (30) Terminated by "," ,
P_NAME CHAR (30) Terminated by "," OPTIONALLY ENCLOSED BY '"' ,
P_ROLE CHAR (5) Terminated by ","
LOCATION ('Input.dat')
REJECT LIMIT UNLIMITED;
It created successfully using SQL Developer
Here is the issue.
It is not loading the records, where fields are enclosed in '"' (Rec # 2,3,4,7)
It is loading all NULL value record (Rec # 6)
*** If we remove the '"' from input data, it loads all records including all NULL records
Log file has
KUP-04021: field formatting error for field P_NAME
KUP-04036: second enclosing delimiter not found
KUP-04101: record 2 rejected in file ....
Our questions
Why did "REJECT ROWS WITH ALL NULL FIELDS" not working?
Why did Terminated by "," OPTIONALLY ENCLOSED BY '"' not working?
Any idea?
Thanks in helping.
Edited by: qwe16235 on Jun 11, 2011 11:31 AM

I'm not sure, but maybe you should get rid of the redundancy that you have in your CREATE TABLE statement.
This line covers all fields:
FIELDS TERMINATED BY "," OPTIONALLY ENCLOSED BY '"'
{code}
So I would change the field list to:
{code}
DATE1 CHAR (10),
DATE2 CHAR (10),
POL_PRTY CHAR (30),
P_NAME CHAR (30),
P_ROLE CHAR (5)
{code}
It worked on my installation.

Design question on using PL/SQL table

Hi I am doing some data extract and write it to a file. The main table is over 100 million rows. It is is partition by ID. So I am thinking of paralleling it.
We are on 10g so we can not use the dbms_parallel.
I would like to use dbms_scheduler or the table function like the Oracle MapReduce example
However, I am not quite sure how to control the degree of parallism using the Oracle MapReduce
Moreover the company has the own unix scheduler and I am 90% sure the old-timer would shoot down my idea and urge to use the in-house built scheduler to this kind of parallel job.
So I would create a procedure that takes a list of ID and then run the extract, write out the file
and this procedure will call by sqlplus on unix.
Once all the threads are done, then the unix script will combine all the files produced into one file.
So my question is how to go about passing IN/OUT of the PL/SQL table and how I can put that PL/SQL table inside of a cursor
Can someone kind enough to give me some example/sample
-Thanks so much

Handle:      vxwo0owxv
Status Level:      Newbie
Registered:      Mar 14, 2011
Total Posts:      88
Total Questions:      54 (39 unresolved)
Long on buzz words & short on knowledge to implement ideas!
vxwo0owxv wrote:
Hi I am doing some data extract and write it to a file. The main table is over 100 million rows. What % of rows need to be extracted?
Exactly how do plan on "write it to a file"?
It is is partition by ID. So I am thinking of paralleling it.Exactly what type of partitioning exists?
We are on 10g so we can not use the dbms_parallel.
I would like to use dbms_scheduler or the table function like the Oracle MapReduce examplepost URL to this MapReduce example
However, I am not quite sure how to control the degree of parallism using the Oracle MapReduce
Moreover the company has the own unix scheduler and I am 90% sure the old-timer would shoot down my idea and urge to use the in-house built scheduler to this kind of parallel job.
So I would create a procedure that takes a list of ID and then run the extract, write out the file
and this procedure will call by sqlplus on unix.Going back out to the OS just to access the DB induces overhead
>
Once all the threads are done, then the unix script will combine all the files produced into one file.
Does order of records in resultant file matter?
So my question is how to go about passing IN/OUT of the PL/SQL table and how I can put that PL/SQL table inside of a cursor
Pass from where to where?
Why PL/SQL table?
Realize that SQLPLUS knows nothing about PL/SQL table
Can someone kind enough to give me some example/sampleI could but then we'd both look unprofessional.

Developing database views between Oracle and SQL Server tables

I am on Oracle 10.2, my organization has many SQL Server databases as well and has now made
SQL server as company standard so many new databases will be developed in SQL Server. It is of course
not possible to convert all Oracle databases to SQL Server, so a mix environment will exist. Two questions:
1. Is it possible to develop database views in Oracle (10g in my case) which join Oracle tables with tables in SQL Server 2008? If yes, how. I have seen some heterogeneous connectivity setup to connect SQL Server to Oracle, but not sure whether it is possible to develop a database view across two databases.
2. I know it is not a SQL Server forum, but many DBA’s know both Oracle and SQL Server. Is it possible to develop views in SQL Server (SQL Server 2008 R2 in my case) which join Oracle 10g and SQL Server 2008 tables? I know in SQL Server, there is way to set up linked servers, but do not know whether it is possible to develop views.
Thanks a lot for your insight.

You can create views that join local Oracle tables and remote SQL Server tables. I'm pretty sure you can do the reverse as well but I haven't personally done it.
However, I would be very concerned about the performance you'd get if you created that sort of view. You'd very frequently end up in a situation where Oracle has to pull all the data in the remote table across the database link in order to apply predicates and join the data locally. That could be disastrous from a performance standpoint.
Justin

SSMA for migrating table from oracle to Sql server

Hi All,
I wanted to replicate oracle huge table to sql server and i am using SSMA.its helpful and fast but can we replicate the table to different name using SSMA.for example i have a table TEST and i wanted to replicate it to SQL_TEST.Can it be possible
using SSMA.
Kindly help me out

Hi All,
I wanted to replicate oracle huge table to sql server and i am using SSMA.its helpful and fast but can we replicate the table to different name using SSMA.for example i have a table TEST and i wanted to replicate it to SQL_TEST.Can it be possible
using SSMA.
Kindly help me out
Hello,
Same question has already been asked by you in below thead. Why you created duplicate thread ? please avoid this practice or your thread will be marked ass Spam
http://social.msdn.microsoft.com/Forums/sqlserver/en-US/abcdfb1b-c617-453f-828d-c8e4ec266c78/ssma-for-migrating-table-from-oracle-to-sql-server?forum=sqlintegrationservices
Moderators plz merge this thread.
Please mark this reply as the answer or vote as helpful, as appropriate, to make it useful for other readers

Questions about 1Z0-047 Oracle Database SQL Expert

I am planning to take this exam and I have several questions:
1) I am using Steve O'Hearn's 'SQL Certified Expert Exam Guide' book and this states the following about SQL functions:
"Be sure to review the Oracle Database SQL Language Reference Manual and review the lengthy description of all of the SQL functions before taking the exam"
In trial tests it seemed that book's information was enough, but how about real exam? Is it necessary to study something in addition to this book information? You can answer regarding other exam objectives as well, if there is something that I should read from some other materials.
2) The book states that I can add not null constraint to column that has null values, if I specify default value. I tried and cannot, I get error. So the book states it wrongly or do I misunderstand something?
3) The book states that I cannot drop a NOT NULL constraint, but I can get the job done using: ALTER TABLE table_name MODIFY column_name NULL;
I tried and I can execute: alter table table_name drop constraint nameofnotnullconstraint;
4) To use external tables, is only read grant on the directory necessary or also write?
5) I understood from the book that to flashback table (e.g to before drop) I need to have row movement enabled on the table. But I tried and I can make this flashback operation to table that does not have row movement enabled. How can this be explained!
Big thanks in advance!

#1) well, the manual is free; find here the SQL Language Reference - http://www.oracle.com/pls/db112/portal.all_books#index-SQL
#2 & 3) If you proved it yourself, that settles it!
#4) Here's a good article about external tables: http://www.oracle-developer.net/display.php?id=512
I noted this paragraph in it, which might answer your question:
In addition to the standard read-write Oracle directory that we need for our external table, we also need an additional executable directory object for the preprocessor. This directory defines the location of the executables used by the preprocessor (we will be using gzip below). As far as Oracle is concerned, an executable directory is one that has EXECUTE privileges granted on it (this is an 11g feature specifically to support the preprocessor).
#5) don't know

Populate SQL table with data from Oracle DB in ODI

Hi,
I am trying to populate a source SQL table with fields from an Oracle db in ODI. I am trying to perform this using a procedure and I am am getting the following error:
ODI-1226: Step PROC_1_Contract_Sls_Person_Lookup fails after 1 attempt(s).
ODI-1232: Procedure PROC_1_Contract_Sls_Person_Lookup execution fails.
ODI-1228: Task PROC_1_Contract_Sls_Person_Lookup (Procedure) fails on the target MICROSOFT_SQL_SERVER connection Phys_HypCMSDatamart.
Caused By: weblogic.jdbc.sqlserverbase.ddc: [FMWGEN][SQLServer JDBC Driver][SQLServer]Invalid object name 'C2C_APP.CON_V'.
My question is what is the best method to populate SQL db with data from an Oracle db? Using a procedure? A specific LKM?
I found threads referring to using an LKM to populate Oracle tables with data from a SQL table....but nothing for the opposite.
Any information would help.
thanks,
Eric

Hi Eric,
If using an Interface, I would recommend the LKM SQL to MSSQL (BULK) knowledge module. This will unload the data from Oracle into a file, then bulk load the staging db on the target using a BULK INSERT.
Regards,
Michael Rainey

Need To Create a table in Sql Server and do some culculation into the table from Oracle and Sql

Hello All,
I'm moving a data from Oracle to Sql Server with ETL (80 tables with data) and i want to track the number of records that i moving on the daily basis , so i need to create a table in SQL Server, wilth 4 columns , Table name, OracleRowsCount, SqlRowCount,
and Diff(OracleRowsCount - SqlRowCount) that will tell me the each table how many rows i have in Oracle, how many rows i have in SQL after ETL load, and different between them, something like that:
Table Name OracleRowsCount   SqlRowCount  Diff
Customer                150                 150
0
Sales                      2000                1998
2
Devisions                 5                       5
0
(I can add alot of SQL Tasks and variables per each table but it not seems logicly to do that, i tryid to find a way to deal with that in vb but i didn't find)
What the simplest way to do it ?
Thank you
Best Regards
Daniel

Hi Daniel,
According to your description, what you want is an indicator to show whether all the rows are inserted to the destination table. To achieve your goal, you can add a Row Count Transformation following the OLE DB Destination, and redirect bad rows to the Row
Count Transformation. This way, we can get the count of the bad rows without redirecting these rows. Since the row count value is stored in a variable, we can create another string type variable to retrieve the row count value from the variable used by the
Row Count Transformation, and then use a Send Mail Task to send the row count value in an email message body. You can also insert the row count value to the SQL Server table through Execute SQL Task. Then, you can check whether bad rows were generated in the
package by querying this table.
Regards,
Mike Yin
TechNet Community Support

The data from my web page insert in SQL table as question marks

I use Farsi language in my web page for inserting customer data. The data that is inserted in webpage and submitted, showed as ???? in SQL table. A lot of developers say that I should use N' before the Unicode character, but I don't know how I can use it
in my code. I attached the code. Can someone say me where I should insert the N in my code?
protected void cmdInsert_Click(object sender, EventArgs e)
//Checking the validation of required fields
if (cboCustomerType.Text == "" || cboTitle.Text == "" || SearchableName.Text == "" ||
FinalName.Text == "" || NationalID.Text == "" || BusinessID.Text == "" || MobilePhone.Text == "")
lblStatus.Text = "لطفا فیلدهای اجباری را حتما پر کنید";
return;
//define ADO.NET objects.
string insertSQL;
insertSQL = "INSERT INTO Customers(";
insertSQL += "CustomerType,CustomerTitle,CustomerFirstName,CustomerLastName,CompanyType,";
insertSQL += "CompanyName,SearchableName,FinalName,NationalCode,BusinessID,City,Address,PostalCode,";
insertSQL += "Zone,MobileNumber,WorkPhone1,WorkPhone2,HomePhone,FaxNumber,Email,Website,Note)";
insertSQL += "VALUES('";
insertSQL += cboCustomerType.Text + "','";
insertSQL += cboTitle.Text + "','";
insertSQL += CustomerFirstName.Text + "','";
insertSQL += CustomerLastName.Text + "','";
insertSQL += cboCompanyType.Text + "','";
insertSQL += CompanyName.Text + "','";
insertSQL += SearchableName.Text + "','";
insertSQL += FinalName.Text + "','";
insertSQL += NationalID.Text + "','";
insertSQL += BusinessID.Text + "','";
insertSQL += City.Text + "','";
insertSQL += Address.Text + "','";
insertSQL += PostalCode.Text + "','";
insertSQL += Zone.Text + "','";
insertSQL += MobilePhone.Text + "','";
insertSQL += Phone1.Text + "','";
insertSQL += Phone2.Text + "','";
insertSQL += HomePhone.Text + "','";
insertSQL += FaxNumber.Text + "','";
insertSQL += Email.Text + "','";
insertSQL += Website.Text + "','";
insertSQL += Note.Text + "')";
SqlConnection con = new SqlConnection(connectionString);
SqlCommand cmd = new SqlCommand(insertSQL, con);
//try to open the database and execute the insert
int added = 0;
try
con.Open();
added = cmd.ExecuteNonQuery();
lblStatus.Text = added.ToString() + "اضافه شد";
catch (Exception err)
lblStatus.Text = "Error inserting record.";
lblStatus.Text += err.Message;
finally
con.Close();
//If the insert succeed, refresh the customer list.
if (added > 0)
FillCustomerList();
Regards,

Because you're composing the SQL statement with string concatenation, you would put the "N" before the single quote,
VALUES(N'";
insertSQL += cboCustomerType.Text + "',N'";
insertSQL += cboTitle.Text + "',N'"; // ...etc
However, composing SQL statements with string concatenation is not a suggested practice because it's open to SQL injection (see:
https://technet.microsoft.com/en-us/library/ms161953(v=sql.105).aspx). A safer way to do this is to use command parameters to represent the values (see SqlCommand.Parameters
property). If you use parameters, you can specify parameter data type as SqlDbType.NVarchar, which will ensure your text values are passed in as Unicode. Also ensure that the columns in question are defined in the database table definition as Unicode (NVARCHAR
rather than VARCHAR).
Hope this helps, Bob

Returning multiple pl/sql tables to VB using ADO + Oracle's OLE DB

Windows XP
VB 6
ADO 2.7
Oracle 9i Client (OLE DB 9.2.0.1)
Oracle DB 8.1.7.2
I have just upgraded a VB5/NT (RDO + MS ODBC for Oracle) app to VB6/XP (ADO + Oracle's OLE DB). The calls to stored procedures that returns tables are not working now. I get following error:
-214721900 ORA-06550: line 1, column 42:
PLS-00201:identifier 'LO_AUDIT_ID_TBL' must be declared
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
Please provide hint/help.

Yes, the LO_AUDIT_ID_TBL is a variable (of table type) being returned from the stored procedure.
I tried changing case of table is in pl/sql.
I tried removing the table(s) from the Call statement...
and I get error message that there are missing parameters.
THANKS SO MUCH FOR YOUR HELP.
I have been reading OLE DB User's guide in which there are examples of Ref Cursors and has no documentation regarding how to achieve same using tables (in stead of Ref Curs). I am also looking for documentation that would describe all different Registry attributes that could be turned on or off to do things, but have not been able to find any.
I am trying to use the PLSQLRSet to retrieve rowsets from pl/sql tables. You can see that in my VB code below, in GetSPResultSet function.
The VB Code is:
Public Function Retrieve() As ADODB.Recordset
Dim inparam(-2 To -1) As Variant 'set to be ignored by GetSPResultSet method
Dim outparam(0) As Variant
Dim strSQL As String
strSQL = "{ CALL PckPLAudit.Sel_Smmry( ?,{resultset 1000, lo_audit_id_tbl, lo_audit_dt_tbl, lo_audit_type_tbl, " & _
"lo_audit_status_tbl, lo_qty_selected_tbl, lo_qty_deselect_tbl, lo_qty_sent_tbl, lo_qty_follow_tbl, " & _
"lo_qty_received_tbl, lo_qty_ncpl_tbl, lo_qty_security_tbl, lo_qty_closed_tbl, lo_qty_sentsec_tbl}, {resultset 1, lo_res_tbl} ) }"
Set rdoRs = mConnection.GetSPResultSet(strSQL, inparam(), outparam())
BuildCollection
Set Retrieve = rdoRs
End Function
Public Function GetSPResultSet(ByVal szSQL As String, InParam() As Variant, OutParam() As Variant) As ADODB.Recordset
'============================================================================
'submits a call to a stored procedure that returns table output parameters.
'out params are interpreted as ADODB.Recordset
'szSQL : SQL call to stored procedure
'InParam() : array of input parameter values
'OutParam() : array of output parameter values set in this function
'============================================================================
Dim qry As New ADODB.Command
Dim ParamIn As ADODB.Parameter
Dim ParamOut As ADODB.Parameter
Dim RS As ADODB.Recordset
Dim inti As Integer
Dim intj As Integer
Dim blnret As Boolean
Dim mErrors As New cErrors
Dim retVal As Double
'Dim itmp As Integer
Dim ParmType As DataTypeEnum
Dim i
On Error GoTo errGetSPResultSet
blnret = True
Set qry = New ADODB.Command
qry.ActiveConnection = mrdoCn
qry.CommandType = adCmdText
qry.CommandText = szSQL
'load rdoParameter object(s) from InParam array if InParam exists
For inti = 0 To UBound(InParam)
'qry.Parameters(i).Value = InParam(inti)
Set ParamIn = New ADODB.Parameter
Select Case TypeName(InParam(inti))
Case "Integer"
ParmType = adDouble
Case "Double"
ParmType = adDouble
Case "String"
ParmType = adChar
Case "Null"
ParmType = adDouble
Case "Date"
ParmType = adDate
Case "Long"
ParmType = adDouble 'jks 12/19/2002
End Select
Set ParamIn = qry.CreateParameter(ParamIn, ParmType, adParamInput)
ParamIn.Value = InParam(inti)
If TypeName(InParam(inti)) = "Null" Then
ParamIn.Size = 0
Else
ParamIn.Size = Len(InParam(inti))
End If
qry.Parameters.Append ParamIn
Next
For intj = 0 To UBound(OutParam)
Set ParamOut = New ADODB.Parameter
Select Case TypeName(OutParam(intj))
Case "Integer"
ParmType = adDouble
Case "Double"
ParmType = adDouble
Case "String"
ParmType = adChar
Case "Null"
ParmType = adEmpty
Case "Empty"
ParmType = adDouble
Case "Date"
ParmType = adDate
Case "Long"
ParmType = adDouble 'jks 12/19/2002
End Select
Set ParamOut = qry.CreateParameter(ParamOut, ParmType, adParamOutput, 255)
qry.Parameters.Append ParamOut
Next
'execute the stored procedure call
qry.Properties("PLSQLRSet") = True
Set RS = qry.Execute() 'rdOpenStatic, rdConcurReadOnly
qry.Properties("PLSQLRSet") = False'
For intj = 0 To UBound(OutParam)
OutParam(intj) = qry.Parameters.Item(inti)
inti = inti + 1
Next
If OutParam(0) <> 0 Then
If OutParam(0) = 999 Then
i = mErrors.DisplayError(Val(OutParam(0)), "SAM")
Else
MsgBox "Database returned error code " & OutParam(0) & "." & vbCrLf & " Unable to complete operation. "
End If
blnret = False
End If
If blnret Then
Set GetSPResultSet = RS
Else
Set GetSPResultSet = Nothing
End If
Set RS = Nothing
Set qry = Nothing
Set ParamIn = Nothing
Set ParamOut = Nothing
exitGetSPResultSet:
Exit Function
errGetSPResultSet:
blnret = ProcessError(Err)
If Not blnret Then Set GetSPResultSet = Nothing
Resume exitGetSPResultSet
End Function
The stored procedure is:
CREATE OR REPLACE PACKAGE BODY D5750PGM.PckPLAudit IS
PROCEDURE Sel_Smmry (
     lo_res_cd          out     number,
     LO_AUDIT_ID_TBL          out     pckclaudit.audit_id_tbl%type,
     lo_audit_dt_tbl          out     pckclaudit.audit_dt_tbl%type,
lo_audit_type_tbl     out     pckclaudit.audit_type_tbl%type,
     lo_audit_status_tbl     out     pckclaudit.audit_status_tbl%type,
     lo_qty_selected_tbl     out     pckclaudit.audit_smmry_qty_tbl%type,
     lo_qty_deselect_tbl     out     pckclaudit.audit_smmry_qty_tbl%type,
     lo_qty_sent_tbl          out     pckclaudit.audit_smmry_qty_tbl%type,
     lo_qty_follow_tbl     out     pckclaudit.audit_smmry_qty_tbl%type,
     lo_qty_received_tbl     out     pckclaudit.audit_smmry_qty_tbl%type,
     lo_qty_ncpl_tbl          out     pckclaudit.audit_smmry_qty_tbl%type,
     lo_qty_security_tbl     out     pckclaudit.audit_smmry_qty_tbl%type,
     lo_qty_closed_tbl     out     pckclaudit.audit_smmry_qty_tbl%type,
     lo_qty_sentsec_tbl     out     pckclaudit.audit_smmry_qty_tbl%type,
     lo_res_tbl          out     pcktbtable_type.res_tbl%type
IS
BEGIN
     PckAudit.Sel_Smmry (pckclglobal.lg_pl_proc, lo_res_cd,
     lo_audit_id_tbl,
     lo_audit_dt_tbl,
lo_audit_type_tbl,
     lo_audit_status_tbl,
     lo_qty_selected_tbl,
     lo_qty_deselect_tbl,
     lo_qty_sent_tbl,
     lo_qty_follow_tbl,
     lo_qty_received_tbl,
     lo_qty_ncpl_tbl,
     lo_qty_security_tbl,
     lo_qty_closed_tbl,
     lo_qty_sentsec_tbl,
     lo_res_tbl
END Sel_Smmry;
END PckPLAudit;
also, pckclaudit.audit_id_tbl%type is defined as
TYPE audit_id_tbl_type IS TABLE OF disb_audit.disb_audit_id%TYPE
     INDEX BY BINARY_INTEGER ;
and disb_audit.disb_audit_id%TYPE is defined as
CREATE TABLE D5750.DISB_AUDIT
DISB_AUDIT_ID NUMBER(9,0) NOT NULL,
AUDIT_DT DATE NOT NULL,
AUDIT_CODE_TYPE_ID VARCHAR2(5) NOT NULL,
AUDIT_CODE_ID VARCHAR2(2) NOT NULL,
CRTN_ID VARCHAR2(8) NOT NULL,
CRTN_DT_TM DATE NOT NULL,
etc.

Question about transfer between oracle and sql server

Could i program to transfer lots of data between Oracle and SQL Server quickly?
I have tried make two connection between two databases, but it took me lots of time to transfer data.
How could I do it?
Thanks

Hi,
If you need to move data fast, then use the Oracle Migration Workbench to Generate SQL Server BCP data extraction scripts and Oracle SQL Loader files.
This is the fastest way to migrate the data.
In the Oracle Model UI tab of the Oracle Migration Workbench, right mouse click on the tables folder. there is a menu option to 'Generate SQL Loader ...' scripts. This will help you migrate your data efficiently.
Regards
John

Obiee 11g Noob question - bring in one sql table

I am a new to obiee.
Using version 11g and trying to bring in one sql table. I created my db and table, then I create the data source in odbc. Everything tests fine.
I then open up the oracle BI administration tool, and 'import metadata'. Everything imports fine - under the 'physical' side I see my sql table and if I hit 'view data' I can see my data just fine.
I think my problem is that under 'business model and mapping' the icon isn't green it has what looks like a red 'no' type icon. My guess is there is something I have to make that green before I will be able to create a report using my sql table. (diagram?)
This is just one sql table with no foreign keys or even a pkey. How can I bring in just this one table?

I created the key in the physical layer...
then I dragged over the table and then dragged it over again (into the BMM) this created a table called (IT_Metric #1)..
now I right click and select 'business model diagram', 'whole diagram' which opens a new window with my one table (IT_Metric) then the mouse cursor just shows waiting (hourglass) ...it never stops the hourglass..

Oracle datalinks to update a MS SQL table

I am accessing a MS SQL table thru an Oracle procedure. Reads with no problems. When I try and update a column (2 columns affected one is a int and the other is datetime) receive the following error:
ORA-02070: database IWSCIV does not support || in this context
Sql Statements tried are
UPDATE iwPhotoProcessed@IWSCIV
SET "Status" = 1
where "BKno" = '1' || v_app_id;
UPDATE iwPhotoProcessed@IWSCIV
SET "Status" = 1, CompletedDate='04/05/2008 09:14:15 AM'
where "BKno" = '1' || v_app_id;
The above command (minus the @IWSCIV) works fine in MS SQL and updates rows.

1) I would generally suggest avoiding string literals when doing UPDATE statements in general, but particularly in the case of updates across Heterogeneous Connectivity database links.
2) I would generally write something like this (assuming "BKno" is declared as a string)
DECLARE
l_new_status NUMBER := 1;
l_app_id VARCHAR2(10) := '1' || v_app_id;
BEGIN
UPDATE iwPhototProcessed@IWSCIV
SET "Status" = l_new_status
WHERE "Bkno" = l_app_id;
END;Justin

Oracle Pl/Sql table question..

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