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If then in sqlplus

Posted on 2006-06-30
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Last Modified: 2011-10-03
Currently, I have the following code in SQL script runs in sqlplus:

DEFINE REGION         = &&1
EXECUTE MY_PROC


I like to add IF THEN condition.  Please remember this is not pl/sql.  How to do?  Thanks.

DEFINE REGION         = &&1

IF REGION ='USA' THEN
EXECUTE MY_PROC
END IF




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Question by:ewang1205
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9 Comments
 
LVL 14

Expert Comment

by:sathyagiri
ID: 17021569
If it was a function you could use some thing like

select decode('&&REGION','USA',MY_FUNC) from dual;

0
 
LVL 14

Assisted Solution

by:sathyagiri
sathyagiri earned 300 total points
ID: 17021631
You could probably create a wrapper function that will call your stored proc and then use the above select statement

create or replace my_func returns number
is
begin
my_proc;
return null;
end;
/

Then use
select decode('&REGION','USA',MY_FUNC) from dual;
0
 
LVL 19

Expert Comment

by:actonwang
ID: 17022139
It is simple. you don't need to any wrapper function or extra step. sql*plus wil be enough for you to do it.
0
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LVL 19

Assisted Solution

by:actonwang
actonwang earned 300 total points
ID: 17022142
the following scriplet will do the logic for you


////////////////////////////////////////
DEFINE REGION=&&1

set feedback off echo off verify off

SPOOL  exec.sql

SELECT 'EXEC MY_PROC'
FROM DUAL
WHERE '&REGION' = 'USA';

SPOOL OFF

@exec.sql
0
 
LVL 16

Assisted Solution

by:MohanKNair
MohanKNair earned 900 total points
ID: 17025517
SQL> EGION varchar2(100);

SQL>  :REGION := 'USA'; end;
/

SQL> begin
IF :REGION ='USA' THEN
MY_PROC;
END IF;
/
0
 

Author Comment

by:ewang1205
ID: 17027485

actonwang :  I tried the following and returns EXEC MY_PROC as value, it don't EXECUTE MY_PROC.  

SELECT 'EXEC MY_PROC' FROM DUAL WHERE 1=1;


MohanKNair :  I don't want to use BEGIN and END in the SQL
0
 

Author Comment

by:ewang1205
ID: 17027641
I found a solution.  I change the MY_PROC to accept in parameter value and use if/then checking the REGION value then run like the following:

EXECUTE MY_PROCE(REGION)
0
 
LVL 19

Expert Comment

by:actonwang
ID: 17033450
>>actonwang :  I tried the following and returns EXEC MY_PROC as value, it don't EXECUTE MY_PROC.  

SELECT 'EXEC MY_PROC' FROM DUAL WHERE 1=1;

you'd have to use my whoe script, not just that ONE sql query:

///////////////
DEFINE REGION=&&1

set feedback off echo off verify off

SPOOL  exec.sql

SELECT 'EXEC MY_PROC'
FROM DUAL
WHERE '&REGION' = 'USA';

SPOOL OFF
0
 
LVL 16

Accepted Solution

by:
MohanKNair earned 900 total points
ID: 17034780
ewang1205,

sql*plus is not procedural and it is better to code if..then..else clauses within pl/sql.

Mohan
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