Re: [GENERAL] Using Substitution Variables In PostgreSQL - Mailing list pgsql-general

From Achilleas Mantzios
Subject Re: [GENERAL] Using Substitution Variables In PostgreSQL
Date
Msg-id 2d64c975-1c40-8142-677a-464b9829fb76@matrix.gatewaynet.com
Whole thread Raw
In response to [GENERAL] Using Substitution Variables In PostgreSQL  (Osahon Oduware <osahon.gis@gmail.com>)
List pgsql-general
On 16/10/2017 17:08, Osahon Oduware wrote:
> Hi All,
>
> I wanted to find out how to use a substitution variable in an SQL statement that would cause the user to be prompted
fora value. Something similar to the ampersand (&&) in ORACLE.
 
>
> For example, given the SQL statement below:
>     SELECT <col1>,<col2>,<col3>
>     FROM <table>
>     WHERE <col5> = 35
>
> I want the user to be prompted for the value in the WHERE (filter) clause, e.g.
>     SELECT <col1>,<col2>,<col3>
>     FROM <table>
>     WHERE <col5> = ?
>
> I would be glad if someone could point me in the right direction.

Just write a bash script that asks for values and then use the -v feature of psql .


-- 
Achilleas Mantzios
IT DEV Lead
IT DEPT
Dynacom Tankers Mgmt



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