On 1/6/22 12:39 AM, Igor Korot wrote:
> Hi, ALL,
> In SQLite you can write:
>
> SELECT a, b, c FROM foo WHERE id = :id;
>
> where ":id" is the named parameter.
>
> The query above is similar to
>
> SELECT a,b,c FROM foo WHERE id = ?;
>
> except that the parameter has a name.
>
> Is there a way to write such a SELECT statement with the
> named parameter in PostgreSQL?
Absolutely. Of course, the exact method depends on the client. Are you
referring to psql?
If so, then here's an example:
$ psql12 -v S=456789012 test
psql (12.8 (Ubuntu 12.8-1.pgdg18.04+1))
Type "help" for help.
test=# select * from employee where ssn = :'S';
ssn | name | ssn_int
-----------+-----------------+-----------
456789012 | Fred Flintstone | 456789012
(1 row)
In this case, column ssn is of type varchar(9).
--
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