Thread: SQL SERVER migration to PostgreSql
I'm trying to migration to PostgreSql from SQL Server. I have Stored Procedures what have output parameters and returning tables.But you know what, we can not returning tables in stored procedures in PostgreSql and we can not use output parameters in functions in PostgreSql.
So i did not find to solves this problem. Anybody have an idea ?
On 11/7/19 5:28 AM, İlyas Derse wrote: > I'm trying to migration to PostgreSql from SQL Server. I have Stored > Procedures what have output parameters and returning tables.But you know > what, we can not returning tables in stored procedures in PostgreSql and > we can not use output parameters in functions in PostgreSql. What version of Postgres? > > So i did not find to solves this problem. Anybody have an idea ? Start here: https://www.postgresql.org/docs/11/plpgsql-overview.html#PLPGSQL-ARGS-RESULTS https://www.postgresql.org/docs/11/plpgsql-declarations.html#PLPGSQL-DECLARATION-PARAMETERS https://www.postgresql.org/docs/11/plpgsql-control-structures.html#PLPGSQL-STATEMENTS-RETURNING If that does not help then post an example of what you are trying to do. -- Adrian Klaver adrian.klaver@aklaver.com
İlyas Derse schrieb am 07.11.2019 um 14:28: > I'm trying to migration to PostgreSql from SQL Server. I have Stored > Procedures what have output parameters and returning tables.But you > know what, we can not returning tables in stored procedures in > PostgreSql and we can not use output parameters in functions in > PostgreSql. The correct migration path is to rewrite them to set-returning functions and use them in the FROM clause: so instead of sp_foobar 42; use select * from fn_foobar(42); Thomas
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | CREATE OR REPLACE FUNCTION get_film (p_pattern VARCHAR) RETURNS TABLE ( film_title VARCHAR, film_release_year INT ) AS $$ BEGIN RETURN QUERY SELECT title, cast( release_year as integer) FROM film WHERE title ILIKE p_pattern ; END; $$
LANGUAGE 'plpgsql'; |
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | CREATE OR REPLACE FUNCTION get_film (p_pattern VARCHAR,p_year INT) RETURNS TABLE ( film_title VARCHAR, film_release_year INT ) AS $$ DECLARE var_r record; BEGIN FOR var_r IN(SELECT title, release_year FROM film WHERE title ILIKE p_pattern AND release_year = p_year) LOOP film_title := upper(var_r.title) ; film_release_year := var_r.release_year; RETURN NEXT; END LOOP; END; $$ LANGUAGE 'plpgsql'; |
From: İlyas Derse <ilyasderse@gmail.com>
Sent: Thursday, November 7, 2019 1:28 PM
To: pgsql-general@lists.postgresql.org <pgsql-general@lists.postgresql.org>
Subject: SQL SERVER migration to PostgreSql
Sent: Thursday, November 7, 2019 1:28 PM
To: pgsql-general@lists.postgresql.org <pgsql-general@lists.postgresql.org>
Subject: SQL SERVER migration to PostgreSql
I'm trying to migration to PostgreSql from SQL Server. I have Stored Procedures what have output parameters and returning tables.But you know what, we can not returning tables in stored procedures in PostgreSql and we can not use output parameters in functions in PostgreSql.
So i did not find to solves this problem. Anybody have an idea ?