RE: Null handlings in Pro*C

In Pro*C you assign to indicator variables by FETCH cursor_name INTO
:variable_name:indicator_variable_name

Rick

> -----Original Message-----
> From: raman.yagna_at_db.com [SMTP:raman.yagna_at_db.com]
> Sent: Monday, May 22, 2000 5:34 AM
> To: Multiple recipients of list ORACLE-L
> Subject: Null handlings in Pro*C
>
> Hi gurus,
> Sorry for posting this question again . Can anyone help me in this
> regard .
>
> Regards,
> Raman
>
>
> ---------------------- Forwarded by Raman Yagna on 22/05/2000 16:22
> ---------------------------
>
>
> To: ORACLE-L_at_fatcity.com
> cc:
> Subject:
>
> How to handle the indicator variables in a pl/sql block inside a Pro*C
> program. If we are using a select into or Fetch into then along with the
> host variable the indicator variable can be placed. But if the value is
> getting assigned to the host variable using an assignment statement , then
> how to put the indicator variable.
>
> Please take the following example how the indicator variable can be put
> inside the PL/SQL block.
>
> main()
> {
> EXEC SQL BEGIN DECLARE SECTION;
>
> varchar salary[20];
> short ind_var;
>
> EXEC SQL END DECLARE SECTION;
>
> EXEC SQL EXECUTE
> DECLARE
> l_tab_sal varchar2(20);
> BEGIN
>
> Here I call a pl/sql block with the paramters and out value as
> l_tab_sal;
>
> if l_tab_sal is null this is giving 1405 error . I can handle by
> specifying nvl but i want to handle thru indicator variables inside
> plsql block .
>
> :salary := l_tab_sal; /* HOW TO ASSIGN INDICATOR VARIABLE HERE */
>
> END;
> END EXEC;
>
> salary[salary.len] = '\0';
> printf ("value is %s", salaray.arr);
> }
>
> Raman
>
>
> --
> Author:
> INET: raman.yagna_at_db.com
>
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Received on Mon May 22 2000 - 05:11:13 CDT