If you are using psql (command line client), you can
use:
\set variable_name variable_value
Then refer to the value by ":variable_name", i.e.
colon instead of ampersand.
"man psql" for more information.
--- satya pariki <spariki@yahoo.com> wrote:
> are there any substitution variables in postgresql ?
>
> select * from EMP where EMPNO = &empnum;
>
> it is giving error. it is telling to type cast or
> use
> parenthesis.
>
> i will be grateful if u help me out of this.
>
> bye
> satya
>
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