Executing select statement

I want to exectue a select statement and show the result retrived in Tabular view(multiple records) how to do it?

lets assume you want a tabular layout based on table employees in hr-schema:
1. create a new data-block using datablock-wizard->choose table->choose columns->choose block-name
2. invoke layout wizard after finishing block-wizard->choose items to show->set prompts->choose tabular layout->set number of records displayed to something>1->finish
3. Layout editor is opened showing you the generated layout.
4. Run the forms, query some data (ctrl-f11 or menu)

Similar Messages

Limitation on SQL executing select statement from ADO and Oracle 8.1.7.1 OleDB Driver

Hi,
we are running a query with a big dunamic select statement from VB code using ADO command object. When Execute method is called system hangs and control won't return back to the application. it seems to be that there is some type limitation on Query string length. Please tell us if there is any?
we are running Oracle 8.1.7 Server on Windows 200 Server and connecting from a W2K professional, ADO 2.6 and Oracle OLEDB 8.1.7.1 OLEDB Driver.
Sample code:
Dim rs As ADODB.Recordset
Dim cmd As ADODB.Command
Set cmd = New Command
With cmd
.CommandText = ' some text with more than 2500 characters
.CommandType = adCmdText
Set rs = .Execute
End With
when i debug using VB6 and when .Execute line is called system hangs or return a message method <<somemethod> of <<some class name>> failed error.
Any help is appreciated.
Thanks,
Anil

A stored procedure would only slow you down here if it was poorly written. I suspect you want to use the translate function. I'm cutting & pasting examples from the documentation-- a search at tahiti.oracle.com will give you all the info you'll need.
Examples
The following statement translates a license number. All letters 'ABC...Z' are translated to 'X' and all digits '012 . . . 9' are translated to '9':
SELECT TRANSLATE('2KRW229',
'0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ',
'9999999999XXXXXXXXXXXXXXXXXXXXXXXXXX') "License"
FROM DUAL;
License
9XXX999
The following statement returns a license number with the characters removed and the digits remaining:
SELECT TRANSLATE('2KRW229',
'0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ', '0123456789')
"Translate example"
FROM DUAL;
Translate example
2229
Also, LIKE '%<string>%' is going to be rather expensive simply because it has to compare the entire string and because it forces full table scans, rather than using indexes. You could speed this sort of query up by using interMedia Text (Oracle Text now in 9i). If you can eliminate one of the '%' options, you could also improve things.
My guess is that your stored procedure is inefficient and that's causing the problem-- 5k rows per table should be pretty trivial.
If you post your query over on the PL/SQL forum, there are better performance tuners than I that might have more hints for you. To get really good advice, though, you'lllikely have to get at least the execution plan for this statement and may need to do some profiling to identify the problem areas.
Justin

Table or view does not exists error while executing select statement

Hi,
I am new to Oracle. I am getting a error while executing the select statement if i give table name without double quotes.
Ex: Select * from Customer;
But working fine when the table name is enclosed within a double quotes.
Ex: Select * from "Customer";
Is there any way to execute the select statement without the double quotes?
Actually I am using NHibernate objects for data access.
Thanks,
Sai

Actually I am using NHibernate objects for data access.And probably that's the problem:
SQL> select * from mytab;
         A
         1
SQL> select * from mYtAb;
         A
         1
SQL> select * from MYTAB;
         A
         1
SQL> select * from MYTAb;
         A
         1Oracle statements are case insensitive and doesn't require double quotes unless the object names are reserved words.
As wrote by others if table is created using double quotes it's name bacomes case-sensitive... and this could be the problem...
Max
[My Italian Oracle blog|http://oracleitalia.wordpress.com/2010/02/05/gestione-degli-errori-in-sql-con-log-errors/]
Edited by: Massimo Ruocchio on Feb 5, 2010 7:08 PM
Added last comment..

Problem executing SELECT statement due to st_spatial column type

I am using a CachedRowSet and cache.execute() will not run because it does not support the st_spatial column type. I have been told to use the column metadata to build a select statement of column names, and check the column's type before you add it to the select clause. But, I am unsure of what to do since I can't get column names without running a select statement first... I will attach some code for you to look at, but please give me suggestions!
try{
Class.forName("com.informix.jdbc.IfxDriver");
CachedRowSet cache = new CachedRowSet();
cache.setReadOnly(true);
cache.setUrl(dbname);
cache.setUsername(user);
cache.setPassword(password);
cache.setCommand("SELECT * FROM "+table);
try{
cache.execute();
}catch(Exception e){
out.print("Can't Display");
OTHER JSP CODE THAT WORKS WITH THE RESULTS FROM ABOVE
}catch(Exception exc){
out.println(exc.toString());
} // end try-catch

I honestly don't have a clue. I have no idea what the st_spatial data type is, or where it is defined, and as a result, I don't know why Java would be complaining about it. I do know that java.sql.ResultSet doesn't care about it (it would internally recognize it as a plain old object type via the getObject() method and you would have to cast it to st_spatial).
What I would check:
Is the Informix driver up to date?
Does the CachedRowSet class extend ResultSet or otherwise use it as an internal data structure? If so, does it properly create the ResultSetMetaData object and no exceptions are being trapped?
Otherwise... when copying data from the ResultSet object into its own internal data structure, does it correctly realize that the st_spatial column should NOT be copied into a String or a slot in a String array?
Does a quick and dirty command line version of your program properly use CachedRowSet to retrieve at least one record from your database?
Basically, put the JSP aside and just test the CachedRowSet to make sure it is working correctly. I have no idea what's in that class since it is not a Java standard class, so I can't really give you any additional suggestions.

Problem in executing select statement using hetrogenous services

I am trying to import data from SqlServer 2005 to oracle 10g using hetrogenous services.
Oracle is installed on solaris 10 platform. I am running my query by Windows platform using Pl/Sql Developer
when i run the following query,
select * from GSecMstr@demodata2;
i get the following error message
Error: ORA-04052: error occurred when looking up remote object [email protected]
ORA-00604: error occurred at recursive SQL level 1
ORA-07268: szguns: getpwuid error.
But strange thing is that when i logon to the solaris server machine with user oracle and execute the same command using sqlplus from solaris console, then command is executed successfully

Server side tnsnames.ora file
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = solaris.ssilhr.com.pk)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
SQLServer =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = tcp)(HOST = solaris.ssilhr.com.pk)(PORT = 1522))
(CONNECT_DATA =
(SID = SQLServer)
(HS = OK)
Server side sqlnet.ora file
SQLNET.AUTHENTICATION_SERVICES= (NONE)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
Client side tnsnames.ora file
# tnsnames.ora Network Configuration File: E:\Oracle\product\10.2.0\db_2\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
ORCL_SUN =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.235)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME = orcl)
Client side sqlnet.ora file
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
Another thing i want to mention is that by mistake, i changed the role of user oracle from dba to root, which i have changed back to dba now.
To create database link, i used the following SQL
create public database link DEMODATA2
connect to "username"
IDENTIFIED BY "MyPassword"
using 'SQLServer';

Query regarding Oracle SQL select statement

Hi,
How does Oracle ensures a consistent snapshot with the select statement
without locking the table. My question is summarized with an example below:
1. At time T1, Oracle select statement is fired and is fetching the result.
2. At time T2, some DML operation is performed on the same table on which
the select was executed and a commit was fired.
3. At time T3, The Oracle select statement (Step 1) completes.
My question is whether the records of transaction at time T2 will be visible at time T3 or not?
If "not", then does it mean that Oracle retrieves the rows from the time of last commit.
I would also like to know if for the above mechanism, Oracle would make use of the rollback segemt to access the rows at a particular instant of time.
TIA
Regards,
Raj

This is called Read Consistency in the oracle. Its all about SCN before starting the transaction.
Lets say
1. T1 executs SELECT statement on EMP table.
2. T2 made an update on the EMP and commited.
But, T1 only still sees only old image of the data not the new one. This is called read consistency.
You will be having two images in the buffer, one is consistent and changed image.
When the T1 give SELECT statement it notes the SCN of the transaction. Read oracle document about read consistency.
SJH.

Substring in the select statement

Hi,
Have a table with 5 columns in it...
Table A
col1
col2
col3
col4
col5
Want to retrieve some columns from that table using the select query, in which substring will be used to extract a part of string from each value contained in the col3 on executing select statement.
How to use the substring in the select statement to perform the above?
Regards

What's wrong with <tt>SUBSTR(col3,4,2)</tt> etc? What do the other columns have to do with it?

Select Statement takes more time after immediate insert statement..

Hello,
I found below scenario
1. I have table TABLE1 which has index on COL1 field. It has around 40 columns and 100000 rows.
2. whenever i insert 100000 rows in bulk with changing indexed key column and executing SELECT statement in same session then it takes around 3 mins to complete.
3. However, if i open new session and execute same select statement then it returns in 2-3 seconds.
I didnt get anything in XPLAN.. :(
I felt Buffer Clean is cause to take time. please let me know your opinion.
Thanks in Advance
Sach

sach09 wrote:
Hello,
I found below scenario
1. I have table TABLE1 which has index on COL1 field. It has around 40 columns and 100000 rows.
2. whenever i insert 100000 rows in bulk with changing indexed key column and executing SELECT statement in same session then it takes around 3 mins to complete.
3. However, if i open new session and execute same select statement then it returns in 2-3 seconds.
I didnt get anything in XPLAN.. :(
I felt Buffer Clean is cause to take time. please let me know your opinion.Are you running the query in the other session after running it from the first?
Aman....

Limit users to execute "SELECT" statemes only from SQL Developer

Hi:
Is there a way to control what SQL command can be executed from SQL Developer?
I am trying to limit users to execute "SELECT" statements only from SQL Developer.
I believe SQL*Plus used to have the product profile where I can control what SQL command can be executed from what user.
Thanks in advance.

There's nothing special in sqldev to enforce privileges, the database does all that already. See the database documentation on the GRANT and REVOKE statements. Basically, you would only want to grant SELECT privileges to your users...
Have fun,
K.

How to execute a SELECT statement in java??

Hello !!
In my java program , i need to delete a record of number X, so
i accept the number X from the keyboard
Then before deleting it
i want the program to show me the name, age of the record which has the number X
How to do this

hello kylas
actually i didnt get why this program example?? wats
its executing ??? Look at reply #3 in your other thread:
http://forum.java.sun.com/thread.jspa?threadID=713289&messageID=4126346
Notice the similarity? You've now asked "How to delete a record in Java" and "how to execute a select statement in java". You may have noticed that, aside from the SQL and the call to execute and executeUpdate (for delete) it's the same code. This is because you don't so much do these things in Java, you do them in SQL. The Java code simply asks the Driver to execute whatever SQL you write. So, I really hope your next post isn't "how do I execute an UPDATE statement in Java".
Good Luck
Lee

Executing a stored procedure containing multiple Select statements

Post Author: Beverly
CA Forum: General
I am using Crystal 10.0 against a MS SQL 2000 server.
I am trying to create a report based on a stored procedure that contains multiple select statements. The sp requires a single parameter (Claim number) and contains 17 Select statements that produce results.
I am able to use the Add command and execute the sp with the parameter, but I am only getting the results of the first select statement in the sp back in my data set. Is there a way to have the data from each Select statement returned to my report?
I have used Crystal for a while, but pretty much for straight-forward reporting. I am familiar with the basics of SQL.
I would appreciate any help anyone can offer.
Thanks.

Post Author: BISoftware
CA Forum: General
I believe Crystal Reports can only handle one recordset at a time, which means it can only handle a single select statement. The only way I can see around this would be to break up your stored procedure into multiple stored procedures, so that each only contains a single select statement. Then, use subreports to report on each individual sp. Hope this helps. - Davewww.BusinessSoftwareResource.com

Execute the expression in select statement

CREATE TABLE TEST1
OFFICE_PRODUCTS     NUMBER,
OFFICE_ELECTRONICS NUMBER
Insert into TEST1 (OFFICE_PRODUCTS, OFFICE_ELECTRONICS) Values(1, 0);
COMMIT;
CREATE TABLE TEST2
EXPORT_FIELD_NAME         VARCHAR2(100 BYTE),
EXPORT_COLUMN_EXPRESSION VARCHAR2(100 BYTE)
Insert into TEST2
   (EXPORT_FIELD_NAME, EXPORT_COLUMN_EXPRESSION)
Values ('A1', 'least(OFFICE_PRODUCTS, OFFICE_ELECTRONICS)');
COMMIT; I want to be execute the expression should run in select statement how to do?
and tried as like below,it's not working.
select (select EXPORT_COLUMN_EXPRESSION from test2 where EXPORT_FIELD_NAME='A1') FROM TEST1;

968892 wrote:
CREATE TABLE TEST1
OFFICE_PRODUCTS     NUMBER,
OFFICE_ELECTRONICS NUMBER
Insert into TEST1 (OFFICE_PRODUCTS, OFFICE_ELECTRONICS) Values(1, 0);
COMMIT;
CREATE TABLE TEST2
EXPORT_FIELD_NAME         VARCHAR2(100 BYTE),
EXPORT_COLUMN_EXPRESSION VARCHAR2(100 BYTE)
Insert into TEST2
(EXPORT_FIELD_NAME, EXPORT_COLUMN_EXPRESSION)
Values ('A1', 'least(OFFICE_PRODUCTS, OFFICE_ELECTRONICS)');
COMMIT; I want to be execute the expression should run in select statement how to do?
and tried as like below,it's not working.
select (select EXPORT_COLUMN_EXPRESSION from test2 where EXPORT_FIELD_NAME='A1') FROM TEST1;
Your problems are many...
a) it's very poor design to be storing expressions or sql statements or any 'executable' style code as data in the database.
b) what you're storing is a string of characters. Oracle isn't going to miraculously know that that is some expression that has to be evaluated, so why should it decide to treat it as such?
c) this poor design can lead to security issues especially around SQL injection.
d) to actually perform what you want would require you to build a dynamic SQL statement and then execute that using EXECUTE IMMEDIATE or DBMS_SQL (or for a 3rd party client, a Ref Cursor), but then there are numerous issues around doing dynamic SQL, aside from SQL injection, in that you are producing code that is not validated at compile time and can thus lead to bugs showing only at run-time and sometime only under certain conditions; the code is harder to maintain; the code can potentially be avoiding the use of bind variables, impacting on resources and performance on the database; the final query can be difficult to know just from reading the code, making further development or debugging a pain in the posterior. Essentially, dynamic SQL is considered very poor design and is 99.9% of the time used for the wrong reasons.
So, why are you trying to do this? What is the business requirement you are trying to solve?

Jdev9i, JSP, Execute a Sql Select statement directly?

Hi,
I need the syntax to execute a Sql SELECT statement directly against Oracle database and access rows(returned by SELECT statemnet) in a JSP page or Servlet? Any sample code available for this.
Thanks.

Hi Ali,
I didn't work a lot with jsp ,but on this url some help .
http://otn.oracle.com/docs/products/oracle8i/doc_library/817_doc/java.817/a83726/basics7.htm#1014578

Execute A select statement under Oracle connection?

Hi,
How can i execute a select statement
under an existing Oracle connecton without
defining extera JDBC connection.

Be aware that you can create View Objects that are NOT based on entity objects. In this case, they are read only, but if you just want to display results, or check for a specific value, it at least reduces the overhead of an EO.
I'm not sure that answers the question here, but thought I would at least throw it out there.
In the View Object wizard, on the page that asks you to choose an EO, just click Next without selecting any EOs. This will automatically put you in expert query mode. Just type in your query and go.
You do have to be a little careful with expert mode queries, especially if you go back and edit them later. You need to make sure to keep the attribute mapping in synch on the Attribute page.
Also, I have found some limitations to this approach, which I'm not sure are fixed in 3.2. Namely, you can't use setWhereClause() to set the entire where clause string from the client. You have to use setWhereClauseParams(). This means that you have to have the basic where clause included in the query and user parameters as placeholders for the where clause values. These are JSP methods, I'm not sure what the equivalent is in DAC, but I am pretty sure the same limitation is there.

Execute an string as select statement

Hi,
I have a problem:
I'm working with an older oracle verion (7.x??). I want to create a dynamic select statement. I create a string, e.g. v_sql_string, and want the database to execute it. What possibilities do I have to do this?
Thanks in advance
Mathias

Yes,
I went through the documentation, but it's only working with cursors.
For better comprehension:
This is the string:
'select count(*) from invoice where sup_no ' || op_sup_no || ' v_sup_no and trpt_code ' || op_trpt_code || ' v_trpt_code and ship_no ' || op_ship_no || ' v_ship_no'
I want to set the operators (op_xxx) dynamiclly. Isn't there something like RUN or EXECUTE, where I only have to pass a string, and the statement is executed ...
But I don't know how ...
Mathias

Executing select statement

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