Dinamic Query Rowtype

Hi:
Anybody know how get Rowtype from one dinamyc Query like this
lc_SQL := 'SELECT';
For i in 1 ... N LOOP
lc_SQL := lc_SQL || Fieldi;
END LOOP;
OPEN Cursor FOR lc_SQL;
FETCH Cursor BULK COLLECT INTO xxxxxx
How I can know rowtype from Cursor to asign into xxxxxx

You can't get this information dynamically.
Dynamic SQL is mainly useful for varying the WHERE clause. As it happens we can also vary the names of the columns and even the tables we select from. But we cannot vary the signature of the query. The datatype structure and name(s) of the receiving variable (array, record, whatever) have to be fixed. Otherwise nothing will compile.
The workaround is to use DBMS_SQL which does support some metadata functionality. However, the only way to make the receiving variable dynamic is code your entire program in a dynamic fashion. Which way madness lies.
The other approach is to use objects. You could frame your dynamic select statements as casts to object types and select into an array of ANYTYPE. Of course, you would have to declare your TYPEs in DDL beforehand so it's not very dynamic. In fact, forget about it.
Essentially, PL/SQL is a strongly typed, non-reflective language. Deal with it. If you want weak (i.e. runtime) type casting (and the concomitant performance hit) use Python.
Cheers, APC

Similar Messages

Dinamic Query SQL injection

I would like to do a dinamic query. I dont know the number of columns of the column and the table, and things like that. I�m worried about sql injection how can i avoid it.
For example,
select column1,column2,....
from tabla
where column1=columna2 and...
I know the format i must build it with Java.

PreparedStatement can avoid most of the standard SQL injection attacks. However, you should not allow a client to request arbitrary SQL statements to be executed unless you have some serious security in your network and are behind a very good firewall.
- Saish

Dinamic query on 8.0.5 db

Hi.
I4m traying to make a dinamic query as:
"select ec_ctnt.filename
from ec_ctnt, ec_prditm_ctntlst
where ec_ctnt.ctntid = ec_prditm_ctntlst.ctntid and ec_prditm_ctntlst.prditmid = ?" using thin jdbc driver, but compiling it with JDeveloper obtain the error messaege "ORA-01008: Not all variables bound", but I include the CalledStatement.setInt() method after this line.

It appears you are using a PreparedStatement object for your query, in which case you need to use the prepared statement object's setInt(int parameterIndex, int x) method.
For example:
PreparedStatement pstmt = conn.prepareStatement("... = ?");
pstmt.setInt(1, <somenumber>);
null

Dinamic query

Hello!
For first, sorry for my ignorance, but I'm not DBA and who is DBA at my company couldn't help me (I don't know why!).
I have a problem with dinamic filters in some queries.
I want to select N rows of a table, but the query can vary in a series of filters, it depending on the parameters.
For example:
first case:
SELECT X FROM TABLE
WHERE X = 'TEST';
second case:
SELECT X FROM TABLE
WHERE X = 'TEST'
OR X = 'AAA';
Did you understand? This is the problem. How can I concatenate this clause "OR" in the end of the query when I want, without create it as a string and using "EXECUTE SQL"...?
I want to use it as a dinamic command...
One more time, sorry if this is a question that only fools do. I'm learning by myself, and at the moment I'm lost. =)
Thanks!

in this case performance problem occurs for the NULL case only?
create table tab (x varchar2(16));
insert into tab values ('TEST');
insert into tab values ( NULL );
begin
   for i in 1..1000000 loop
       insert into tab values ( to_char(i) );
   end loop;
end;
create unique index ui_tab_x on tab(x) nologging;
exec dbms_stats.gather_table_stats(user, 'tab');
commit;
set timing on
set autotrace traceonly
SELECT X FROM tab WHERE X = 'TEST' or X = DECODE(1,NULL,X,1) ;
Elapsed: 00:00:00.00
Execution Plan
Plan hash value: 3421616299
| Id | Operation          | Name     | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT   |          |     2 |    12 |     4   (0)| 00:00:01 |
|   1 | CONCATENATION     |          |       |       |            |          |
|* 2 | INDEX UNIQUE SCAN| UI_TAB_X | 1 | 6 | 2 (0)| 00:00:01 |
|* 3 | INDEX UNIQUE SCAN| UI_TAB_X | 1 | 6 | 2 (0)| 00:00:01 |
Predicate Information (identified by operation id):
2 - access("X"='TEST')
3 - access("X"='1')
Statistics
          1 recursive calls
          0 db block gets
6 consistent gets
          0 physical reads
          0 redo size
        444 bytes sent via SQL*Net to client
        384 bytes received via SQL*Net from client
          2 SQL*Net roundtrips to/from client
          0 sorts (memory)
          0 sorts (disk)
          2 rows processed
SELECT X FROM tab WHERE X = 'TEST' or X = DECODE(NULL,NULL,X,NULL) ;
1000001 rows selected.
Elapsed: 00:00:05.87
Execution Plan
Plan hash value: 1995730731
| Id | Operation         | Name | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT |      |     1 |     6 |   503   (9)| 00:00:07 |
|* 1 | TABLE ACCESS FULL| TAB | 1 | 6 | 503 (9)| 00:00:07 |
Predicate Information (identified by operation id):
1 - filter("X"="X" OR "X"='TEST')
Statistics
          1 recursive calls
          0 db block gets
68353 consistent gets
          0 physical reads
          0 redo size
   16555973 bytes sent via SQL*Net to client
     733710 bytes received via SQL*Net from client
      66668 SQL*Net roundtrips to/from client
          0 sorts (memory)
          0 sorts (disk)
    1000001 rows processedwhat is your Oracle version? I did above test on 10gR2. And are you using bind variables for this operation?
if you are using bind variables force the NOT NULL cases to be parsed differently than NULL case, so guarantee for different execution plans no matter which comes first.
one way to do this can be with an if block and use comments in your code.
if arg is NOT NULL then
   select /* NOT null case */ X FROM tab WHERE X = 'TEST' or X = DECODE(arg,NULL,X,arg) ;
else
   select /* null case */ X FROM tab WHERE X = 'TEST' or X = DECODE(arg,NULL,X,arg) ;
end if;

How to dump a query on a XLS file?

I´m working in a stored procedure on that i can send a dinamic query and it return me the result into a xls file.
I´ve found the way to generate that xls file from Pl/sql, but now I need be able to assing each field of each row into his corresponding cell. For this I need to put each field of each row in a variable and then work on it.
For generate xls file, I´ve created a datatype by following the indications of Jasson Bennet´s blog.
http://radio-weblogs.com/0137094/2006/10/26.html
In the example, values are assigned directly to the cells. But it not is valid for me because I dont know what will be these...
I think that if you want see the blog, you´ll can understand better what I´m refering...
Thanks for your time...

Strange requirement, you don't know the query, the columns and the number of rows you get, but you know that you want the value of the second column of the second row :)
But try this
declare
t_c integer;
t_r integer;
t_v varchar2(100);
begin
t_c := dbms_sql.open_cursor;
dbms_sql.parse( t_c, q''select 'Roy' name, 'sales' deptno, 25 age from dual
union all select 'Sara', 'HHRR', 30 from dual
union all select 'Mike', 'finances', 35 from dual'', dbms_sql.native );
dbms_sql.define_column( t_c, 2, t_v, 100 );
t_r := dbms_sql.execute( t_c );
t_r := dbms_sql.fetch_rows( t_c );
t_r := dbms_sql.fetch_rows( t_c );
dbms_sql.column_value( t_c, 2, t_v );
dbms_sql.close_cursor( t_c );
dbms_output.put_line( t_v );
end;
/

How to make a search in a form

Hi
I have a form with a lot of items(name date,age,height) that i can use to make a search . I found many problems for the search , infact i had to create many cursors, one for each case. For example i would search for age and height or just from date and so on.
How can i make it more easy?
Can i use a dinamically query for a cursor ?
PLZ HELP

if you don't use oracle default search buttons, then you may code your own search buttons, inside, you may ,
e.g., user might want to enter height and age fields(Assume the table columns are HEIGHT and AGE),
then use,
IF :heightitem is not null then
w_str := ' AND HEIGHT ='||:heightitem;
END IF;
IF :AGEITEM IS NOT NULL THEN
w_str := w_str||' AND AGE='||:ageitem;
END IF;
then you set_block_property('..',default_where,w_str); then execute_query. In order to avoid giving user blank form fields when no records found, which oracle did this badly, then you may use SELECT COUNT(*) into cnt FROM ... WHERE ...w_str to detect the cnt, if cnt > 0 then execute_query, if not, then shoot no record data found message out.

Db 이전 문제때문에 질문올립니다.

source db : Oracle 9i ( LANG KO16KSC5601 )
target db: Oracle 9i ( LANG UTF - 8 )
source db 에서 target db 로 데이터 이전 준비중입니다.
아래와 같은 방법으로 현재 99% 성공인데 몇가지 걸리는게 있습니다.
1. source db user 당 export
2. export file 에서 create 문만 추출
3. target db 에서 create 문 실행
4. pl/sql 로 target db 의 char, varchar size 를 1.5 로 증가( varchar2 는 당연히 4000까지만 )
5. export 받은 dump 파일 ignore = y 로 target db 에 import
ko16 에서 utf-8 로 이전하는 과정에서 한글이 2byte -> 3byte 로 커지는 문제때문에 위와 같은 방법을 사용했는데요
문제는 기존에 varchar2(4000) 으로 사용하던 필드입니다.
이미 3000 byte 이상 입력되어 있는 상태이기때문에
테이블 생성시에 varchar2(4000) => clob 으로 변경후에
위 방법을 import 시에
ORA-01461: can bind a LONG value only for insert into a LONG column
에러가 발생합니다.
metalink 에서 뒤져보니 clob 자체가 insert 문이 다르더군요.
그래서.. 생각한것이 db link 을 이용해서 한줄씩 이동할려고 했으나
declare
     lob_loc CLOB;
     cursor emp is
               select
               content
               from 테이블명@디비링크;
     atc TBL_MP_MEMO%ROWTYPE;
begin
-- 커서 루프돌면서 local db 에 clob insert
end;
ORA-1406 에러가 발생하네요. (인출된 열이 짤렸습니다)
역시 metalink 을 뒤척여봤으나 뽀족한 방법은 없는것 같습니다.
정 안되면 java 로 프로그램을 짜셔 한줄씩 입력하려고 하고 있는데
그냥 pl/sql 또는 오라클 자체기능으로는 불가능할까요?
고수님들의 가르침을 기다리겠습니다.

저도 이것때문에 한참 고민을 했는데..
먼저... 한가지 말씀드리면..metalink에서 UTF8로 변경하지 말고
AL32UTF8을 사용하라더군요.. UTF8은 너무 옛날에
쓰던 것이라서 모가 지원 안된다던거 같던데..;;
이미 하셨으니 어쩔 수 없죠..
아래는 제가 long type의 데이터를 옮길 때에 사용했던 겁니다.
문제는 그 때에도 데이터가 짤렸는데.. 수치값을 늘려주면 될 것 같기도 합니다.
예>
- test_contents 라는 테이블을 생성하고
dl_smsvr1이라는 db링크에서 long typpe이 있는
데이터를 가져오고자 한다.
참고로 long type은 varchar2(32767)으로 pl/sql에서 정의한다.
varchar2는 32767이 최대값이다.
-- 주의사항
위 pl/sql이 수행되면 auto commit이 되고 만다. 즉 rollback이 안되니 주의할것.
원본 데이터를 옮겨두고 또는 exp백업을 하고 나서 수행하자.
create table test_contents
( res_idx number(10),SRC_TYPE char(1),CONTENT long) tablespace mail2;
DECLARE
RES_IDX NUMBER(10);
SRC_TYPE CHAR(1);
CONTENT VARCHAR2(32767);
cursor query is
SELECT *
FROM MAIL2.IM_CONTENT@dl_smsvr1;
thisrow query%rowtype;
begin
open query;
fetch query into thisrow;
RES_IDX := thisrow.res_idx;
SRC_TYPE := thisrow.src_type;
CONTENT := thisrow.content;
loop
fetch query into thisrow;
exit when query%notfound;
INSERT INTO test_contents VALUES(thisrow.RES_IDX, thisrow.SRC_TYPE, thisrow.CONTENT);
end loop;
end;
/

Query data dinamically

I want to execute a query that it is formed dinamically based in some text items that I have in the form; I want to use the Execute Query button on the default toolbar. My question is how to pass the text item content as a parameter to the where clause in datablock property field?
Thanks

Hello
you can use the SET_BLOCK_PROPERTY procedure for both the where clause or an order by.
    v_WHERE := F_SET_WHERE;     -- construct your where clause in a function
    GO_BLOCK ( <my_block> );
    CLEAR_BLOCK ( NO_VALIDATE );
    SET_BLOCK_PROPERTY ( <my_block>, DEFAULT_WHERE, v_WHERE );
    EXECUTE_QUERY;Bernd

IS IT POSSIBLE TO CHANGE DINAMICALLY THE SOURCE OF A QUERY?

IS IT POSSIBLE TO CHANGE DINAMICALLY THE SOURCE OF A QUERY, AND TO SHOW DATA FROM DIFERENT TABLES, BASED IN USER PARAMETER VALUE?.
EXAMPLE:
IF USER PARAMETER = 1 THEN
SELECT COLUMN1 FROM TABLE1
ELSIF USER PARAMETER = 0 THEN
SELECT COLUMN2 FROM TABLE2
END IF;
ANY OTHER IDEA??
THANKS FOR HELPS.

Read the online help about lexical parameters.
Select a from &p_1
should work.

ROWTYPE to get better query ?

Hello,
I have two identical tables:
PHOTOS_TEMP AND IMAGES_TEST
(ID PK number ,
content blob,
filename varchar2 (200),
mimetype varchar2 (200),
filesize varchar2 (200),
res_id FK number,
watermarked varchar2 (1))I have CODE 1, I want to make it more effecient perhaps by using %ROWTYPE,
So, I tried CODE 2, but it did not work. It tells, "Too many values .... CONTENT must be declared ...."
Can you plesae tune Code 1 ??
h1. CODE 1 is working fine
DECLARE
type source_col is table of blob index by pls_integer ;
V_source source_col;
type id_col is table of number index by pls_integer ;
V_id id_col;
type char_col is table of IMAGES_TEST.FILENAME%TYPE index by pls_integer ;
V_filename char_col;
V_mimetype char_col;
begin
select content,filename,mimetype,id bulk collect into
V_source,v_filename,v_mimetype,v_id from photos_temp
where temp = :P700_TEMP_IMAGE   for update ;
for i in V_source.first .. V_source.last
loop
ORDSYS.ORDImage.process(V_source(i), 'fixedScale=800 500');
end loop;
forall i in V_source.first .. V_source.last
insert into IMAGES_test
(res_id ,CONTENT,filename,mimetype,filesize,watermarked)
values
(:P700_res_ID ,V_source(i),V_filename(i),V_mimetype(i),
dbms_lob.getlength(V_source(i)), 'Y');
COMMIT;
EXCEPTION
   WHEN OTHERS THEN
   RAISE;
END;h1. CODE 2 supposed to be more efficient, but not working ?
DECLARE
type new_row is table of IMAGES_TEST%rowtype index by pls_integer ;
v_row new_row;
begin
-- This may collect more than one row
select * bulk collect into
v_row from photos_temp
where temp = :P700_TEMP_IMAGE   for update ;
for i in v_row.id.first .. v_row.id.last
loop
ORDSYS.ORDImage.process(v_row.content(i), 'fixedScale=800 500');
end loop;
forall i in v_row.id.first .. v_row.id.last
insert into IMAGES_test
(res_id ,CONTENT,filename,mimetype,filesize,watermarked)
values
(:P700_res_ID ,v_row.contnet(i),v_row.filename(i),v_row.mimetype(i),
dbms_lob.getlength(v_row.content(i)), 'Y');
COMMIT;
EXCEPTION
   WHEN OTHERS THEN
   RAISE;
END;Best Regards,
Fateh
Edited by: Fateh on Nov 26, 2012 5:22 AM

hi,
In your CODE 1
select content,filename,mimetype,id bulk collect into
V_source,v_filename,v_mimetype,v_id from photos_temp
where temp = :P700_TEMP_IMAGE   for update ;
-- temp is not a collumn name nor a variable name
...So I think that does not work.
In code 2 you must use the index "( i)" on the table variable and not on the attribute. So:
v_row.contnet(i) --THIS IS WRONG!
v_row(i).contnet -- This is OK
Also:
v_row.id.first --THIS IS WRONG!
v_row.first --This is OK
Below is an working example:
insert into photos_temp (id ,filename) values ( 1,'peter');
insert into photos_temp (id ,filename) values ( 2,'Fateh');
commit;
DECLARE
type new_row is table of IMAGES_TEST%rowtype index by pls_integer ;
v_row new_row;
begin
select * bulk collect into
   v_row from photos_temp
--where temp = :P700_TEMP_IMAGE
for update ;
--for i in v_row.id.first .. v_row.id.last
for i in v_row.first .. v_row.last
loop
DBMS_OUTPUT.PUT_LINE('Id: ' || v_row(i).id || ' filename: ' || v_row(i).filename);
end loop;
end;
Result:
Id: 1 filename: peter
Id: 2 filename: FatehAnd in your case for code 2 simplyfied:
DECLARE
type new_row is table of IMAGES_TEST%rowtype index by pls_integer ;
v_row new_row;
begin
select * bulk collect into
   v_row from photos_temp
--where temp = :P700_TEMP_IMAGE
for update ;
--forall i in v_row.id.first .. v_row.id.last
forall i in v_row.first .. v_row.last
insert into IMAGES_test
(id ,filename)
values
(v_row(i).id, v_row(i).filename);
end;
select
id
,filename
from
images_test;
Result:
ID FILENAME
1 peter
2 Fateh                                                                                                                                                                                                    Whoever this works in:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
PL/SQL Release 11.2.0.1.0 - Production
"CORE     11.2.0.1.0     Production"
TNS for 64-bit Windows: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
I think in oracle 9 you must use seperate table variables and not one table variable of a scalar type.
Regards,
Peter

Error while querying plsql table.

create table emp(eno number, ename varchar2(20), sal number(10,2), dno number);
create table dept(dno number, dname varchar2(10));
DECLARE
TYPE EmpTabTyp1 IS TABLE OF emp%ROWTYPE INDEX BY BINARY_INTEGER;
emp_tab1 EmpTabTyp1;
l_str_name varchar2(20);
begin
select eno, ename, sal bulk collect into emp_tab1 from emp;
select et1.ename into l_str_name from dept dp , TABLE(CAST(emp_tab1 EmpTabTyp1)) et1 WHERE dp.dno = et1.dno
end;
Getting below error:
ERROR at line 8:
ORA-06550: line 7, column 131:
PL/SQL: ORA-00933: SQL command not properly ended
ORA-06550: line 7, column 3:
PL/SQL: SQL Statement ignored
ORA-06550: line 8, column 4:
PLS-00103: Encountered the symbol "end-of-file" when expecting one of the
following:
begin case declare end exception exit for goto if loop mod
null pragma raise return select update while with
<an identifier> <a double-quoted de
Thanks,
Vinodh

ora_1978 wrote:
create table emp(eno number, ename varchar2(20), sal number(10,2), dno number);
create table dept(dno number, dname varchar2(10));
DECLARE
TYPE EmpTabTyp1 IS TABLE OF emp%ROWTYPE INDEX BY BINARY_INTEGER;
emp_tab1 EmpTabTyp1;
l_str_name varchar2(20);
begin
select eno, ename, sal bulk collect into emp_tab1 from emp;
select et1.ename into l_str_name from dept dp , TABLE(CAST(emp_tab1 EmpTabTyp1)) et1 WHERE dp.dno = et1.dno
end;
Getting below error:
ERROR at line 8:
ORA-06550: line 7, column 131:
PL/SQL: ORA-00933: SQL command not properly ended
ORA-06550: line 7, column 3:
PL/SQL: SQL Statement ignored
ORA-06550: line 8, column 4:
PLS-00103: Encountered the symbol "end-of-file" when expecting one of the
following:
begin case declare end exception exit for goto if loop mod
null pragma raise return select update while with
<an identifier> <a double-quoted deThanks,
VinodhYou cant query a PL/SQL table. You can query only a collection database object that is created and stored in the database.
A simple reason is that PL/SQL code is processed by different engine and SQL code is processed by different engine. And your PL/SQL table is local to the PL/SQL code and is not available for the SQL engine.
Edited by: Karthick_Arp on Apr 19, 2012 6:14 AM

How to input several queries at once in a text field, query from it?

Hi ,
I am starting out in oracle development and am currently attempting to develop a tool which uses a text item which can be updated by cut and paste (~ie from a spreadsheet) and then can query several tables(each as blocks joined by relations with the primary key of the first block being that of each item in the text feild) pulling back one row for each item entered in the original text item and displaying all the results as usual in the joined data fields. The problem i am having is attempting to 1. inserting multiple data items into the query box (text item), as the focus stays in the first item and i want to insert say 20 for the query by cut and paste. Secondly when populated i want to be able to use all these items to query the database when i press a button , however it shall only query the first row in the text item . Is it possible to loop in a when button pressed trigger? If not then i thought about inserting the rows in the original text item into a database table then joining it to the other tables by relation for query, however how do i loop through the text time and insert into a table( in a trigger or in a called procedure? any help would be much appreciated.

Hi
I am not sure if I understood completely what you want to do,
but if you want to query a block using a list of values,
you can modify dinamically the block where clause and use
the operator "in".
For example, loop through the values in the text item and
build a list of values - at the end you'll get in a varchar2
variable the following:
'10, 12, 17, 22'
Let's say the variable is called vList. Then you can use:
set_block_property('myblock', default_where, 'thecolumn in ('||vList||')');
So the block will retrieve all and only the records in the list.
By the way, I suggest you break such long posts with blank lines
between the paragraphs, it's easier to read!

Single quote in dynamic query

Hi all;
Can u please help me on the following dynamic query code ? I know I am missing the single quote around 2 dates but could not figure out where to put it ! I have tried putting 2 or 3 quotes around 2 bind vars but to no avail.
Want to create a dynamic query to simulate the the following:
select
EMPNO,ENAME,JOB,MGR,HIREDATE from emp where HIREDATE >= to_date('01/01/1981','MM/DD/YYYY') and HIREDATE <= to_date('12/31/1982','MM/DD/YYYY');
dynamic code:
declare
v_q varchar2(4000);
begin
v_q :='select EMPNO,ENAME,JOB,MGR,HIREDATE from emp ';
V_q := V_Q
|| 'where HIREDATE >= '
|| 'to_date(' || :P_DATE1 || ',' ||'''MM/DD/YYYY''' || ' )'
|| 'and HIREDATE <= '
|| 'to_date(' || :P_DATE2 || ',' ||'''MM/DD/YYYY''' || ' )';
-- end the sql
v_q := v_q ||';';
dbms_output.put_line ('V_Q is ' || V_Q);
end;
Thanks.
Zen

declare
    v_q varchar2(4000);
    v_rec emp%rowtype;
    v_cur sys_refcursor;
begin
    v_q :='select EMPNO,ENAME,JOB,MGR,HIREDATE from emp ';
    V_q := V_Q || 'where HIREDATE >= to_date(:P_DATE1,''MM/DD/YYYY'') and HIREDATE <= to_date(:P_DATE2,''MM/DD/YYYY'')';
    dbms_output.put_line ('V_Q is ' || V_Q);
    open v_cur
      for v_q
      using '01/01/1981',
            '12/31/1982';
    loop
      fetch v_cur
        into v_rec.empno,
             v_rec.ename,
             v_rec.job,
             v_rec.mgr,
             v_rec.hiredate;
      exit when v_cur%notfound;
      dbms_output.put_line('empno = ' || v_rec.empno);
      dbms_output.put_line('ename = ' || v_rec.ename);
      dbms_output.put_line('job = ' || v_rec.job);
      dbms_output.put_line('mgr = ' || v_rec.mgr);
      dbms_output.put_line('hiredate = ' || to_char(v_rec.hiredate,'MM/DD/YYYY'));
      dbms_output.put_line('====================');
    end loop;
    close v_cur;
end;
V_Q is select EMPNO,ENAME,JOB,MGR,HIREDATE from emp where HIREDATE >=
to_date(:P_DATE1,'MM/DD/YYYY') and HIREDATE <= to_date(:P_DATE2,'MM/DD/YYYY')
empno = 7499
ename = ALLEN
job = SALESMAN
mgr = 7698
hiredate = 02/20/1981
====================
empno = 7521
ename = WARD
job = SALESMAN
mgr = 7698
hiredate = 02/22/1981
====================
empno = 7566
ename = JONES
job = MANAGER
mgr = 7839
hiredate = 04/02/1981
====================
empno = 7654
ename = MARTIN
job = SALESMAN
mgr = 7698
hiredate = 09/28/1981
====================
empno = 7698
ename = BLAKE
job = MANAGER
mgr = 7839
hiredate = 05/01/1981
====================
empno = 7782
ename = CLARK
job = MANAGER
mgr = 7839
hiredate = 06/09/1981
====================
empno = 7839
ename = KING
job = PRESIDENT
mgr =
hiredate = 11/17/1981
====================
empno = 7844
ename = TURNER
job = SALESMAN
mgr = 7698
hiredate = 09/08/1981
====================
empno = 7900
ename = JAMES
job = CLERK
mgr = 7698
hiredate = 12/03/1981
====================
empno = 7902
ename = FORD
job = ANALYST
mgr = 7566
hiredate = 12/03/1981
====================
empno = 7934
ename = MILLER
job = CLERK
mgr = 7782
hiredate = 01/23/1982
====================
PL/SQL procedure successfully completed.
SQL> SY.

How to treat data in a long query

I have a query (over a table connected by dblink) that returns me a lot of rows (over 7 millions), when I try to got data at each row i got an out of memory problem. So I want to view records in legs, but i don't know how to do that in my procedure.
The query is asigned to a cursor and I pass the data I need of each row to another table.
This is the code I have:
CURSOR r_cursor
IS
SELECT *
FROM med_principio_activo@midblink
cursor1 r_cursor%ROWTYPE;
begin
LOOP
FETCH r_cursor
INTO cursor1;
EXIT WHEN r_cursor%NOTFOUND;
SELECT MAX(SID)
INTO medic
FROM medicam
WHERE cursor1.codmedic LIKE xkey;
SELECT MAX(SID)
INTO ppioact
FROM activeingredient
WHERE cursor1.codppioact LIKE xkey;
INSERT INTO med_medicamentai
(medicament, activeingredient
VALUES (medic, ppioact
COMMIT;
END LOOP;
I want to do legs of 10000 records to read all info and got memory free, but i don't know how to do that...
Thnaks,

Hi,
instead of using PL/SQL using cursor you could have insert directly in the table,
like
INSERT INTO med_medicamentai
(medicament, activeingredient
VALUES (
Before that we need to know how the data in med_principio_activo@midblink
,medicam and activeingredient are related.
If you want to use cursor, then bulk collect will improve the performance.
Please look at this link for more info.
http://download.oracle.com/docs/cd/B14117_01/appdev.101/b10807/12_tune.htm#i49139
Thanks

Assigning a query dynamically to a cursor based on IF ELSE condotion

hello guys,
we are facing a problem while creating a procedure.
The procedure has been recreated in ORACLE from SQL SERVER 2005.
the problem is that in SQL server we can assign a query dynamically to a cursor so that it will be called at execution time.But this is not the case in oracle, i.e in Oracle its not allowed to assign a query to a cursor dynamically(OR IS IT...!!!)
the code is
vr_SQL varchar2(400);
declare
   cursor ord_cur ; <-----cursor declaration
begin
   If v_pIsScrutiny = 0 then   +<--------------second condition+
      vr_SQL:='Select NVL(ServiceID,0) ServiceID,OrdQty,+<-------query assignment to a variable+
          NVL(DrugID,0) DrugID,NVL(ServiceAmount,0) Rate,OrdDtlID
          from Orderdtl inner join ordermst on Orderdtl.OrdID = ordermst.OrdID
          Where Orderdtl.OrdID in (Select OrdID From Ordermst Where OrdVisitID = vr_visitid
          and TO_CHAR(ordermst.OrdDate,''DD-MON-YYYY'')
          Between TO_CHAR(vr_pActivationDate,''DD-MON-YYYY'')
          and TO_CHAR(vr_pExpiryDate,''DD-MON-YYYY'')
          ) And NVL(Orderdtl.Cancelled,0) = 0 And NVL(Orderdtl.PackageID,0) = 0
          and NVL(Orderdtl.DrugID,0) = 0;';
    Else +<--------------first condition+
        Update OrderDtl Set PackageID = 0 , AllocationID = 0 , ConsumptionID = 0
        Where OrdID in (Select OrdID From Ordermst Where OrdVisitID = vr_visitid)
        And AllocationID = v_pHCPAllocationID;
       vr_SQL:= 'Select NVL(ServiceID,0) ServiceID, +<-------query assignment to a variable+
       OrdQty,NVL(DrugID,0) DrugID,NVL(ServiceAmount,0)
        Rate,OrdDtlID
       from Orderdtl inner join ordermst on Orderdtl.OrdID = ordermst.OrdID
       Where Orderdtl.OrdID in (Select OrdID From Ordermst Where OrdVisitID = vr_visitid
       and TO_CHAR(ordermst.OrdDate,''DD-MON-YYYY'')
       Between TO_CHAR(vr_pActivationDate,''DD-MON-YYYY'')
       and TO_CHAR(vr_pExpiryDate,''DD-MON-YYYY'')
       ) And NVL(Orderdtl.Cancelled,0) = 0 And NVL(Orderdtl.PackageID,0) = 0;';
    end if;
       ord_cur is vr_SQL; +<----------query assigned to a cursor variable+
    ord_rec ord_cur%ROWTYPE;
   if not ord_cur%ISOPEN then
        open ord_cur;
   end if;
    loop
    fetch ord_cur into ord_rec;
    exit when ord_cur%NOTFOUND;So currently we are stuck with this problem.
Any solution would be of great help..
thank you

841363 wrote:
hello guys,
we are facing a problem while creating a procedure.
The procedure has been recreated in ORACLE from SQL SERVER 2005.
the problem is that in SQL server we can assign a query dynamically to a cursor so that it will be called at execution time.But this is not the case in oracle, i.e in Oracle its not allowed to assign a query to a cursor dynamically(OR IS IT...!!!)The problem is that you are thinking in SQL Server terms and Oracle just isn't SQL Server.
You need to consider using ref cursors for such things (sys_refcursor) e.g.
SQL> CREATE OR REPLACE PACKAGE reftest IS
2    PROCEDURE test(P_no in number, cur_o OUT sys_refcursor);
3 end;
4 /
Package created.
SQL>
SQL> CREATE OR REPLACE PACKAGE body reftest as
2    PROCEDURE test(P_no in number, cur_o OUT sys_refcursor) as
3      myexc exception;
4    BEGIN
5      if P_no = 1 then
6        open cur_o for select empno, ename from emp;
7      elsif p_no =2 then
8        open cur_o for select deptno, dname from dept;
9      else
10        RAISE myexc;
11      END IF;
12    exception
13      when myexc then
14        raise_application_error(20991,'input must be 1 or 2');
15    end ;
16 end reftest;
17 /
Package body created.
SQL> var x refcursor;
SQL> exec reftest.test(1,:x);
PL/SQL procedure successfully completed.
SQL> print x;
     EMPNO ENAME
      7369 SMITH
      7499 ALLEN
      7521 WARD
      7566 JONES
      7654 MARTIN
      7698 BLAKE
      7782 CLARK
      7788 SCOTT
      7839 KING
      7844 TURNER
      7876 ADAMS
      7900 JAMES
      7902 FORD
      7934 MILLER
14 rows selected.
SQL> exec reftest.test(2,:x);
PL/SQL procedure successfully completed.
SQL> print x;
    DEPTNO DNAME
        10 ACCOUNTING
        20 RESEARCH
        30 SALES
        40 OPERATIONS
SQL>

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