![]() Oracle-style procedure: SQL> create or replace procedure pro4 asĭbms_output.put_line(n) -should print 5 as rollback happenedĭbms_output. PostgreSQL-style procedure: postgres=# Create or replace procedure pro3()Įxample 4: Using commit/rollback inside a procedure Oracle-style procedure: SQL>Create or replace procedure pro3 PostgreSQL-style procedure: postgres=# create or replace procedure pro2(n in int,n1 in out int)Įxample 3: Using cursors in procedures, when fetching more than one rowĬreate table and insert rows into Oracle and PG databases: create table tab1(x int,x1 int) If we don’t specify the argument mode, then it will take IN by default. Oracle-style procedure: SQL> create or replace procedure pro2( n in int,n1 in out int)ĭbms_output.put_line('The result is ' || n1) In the operation configuration screen, set the SQL Query Text field to the query to execute, for. OUT: Not currently supported for procedures In your Studio flow, select the Stored procedure operation. We can convert this procedure into a PostgreSQL-style procedure (PL/pgSQL) like this: postgres=# create or replace procedure pro1()Įxample 2: using argument modes IN and INOUT The CALL command is used to invoke a procedure.Įxample 1: Printing “Hello World” with a procedureĪn Oracle-style (PL/SQL) procedure for printing “hello world” would look like this: SQL> create or replace procedure pro1 PostgreSQL started supporting procedure support with version 11. Here we are going to see some code which is written in PL/SQL and how we convert that into PL/pgSQL without much effort. ![]() PL/pgSQL code is managed in blocks (block structured code) into which anonymous blocks, functions, and procedures are organized.įor companies who want to move from Oracle to PostgreSQL, changing their application which is written/developed in PL/SQL language to PL/PGSQL is a challenge. As we all know, PL/SQL is an Oracle procedural language and PL/pgSQL (Procedural Language/PostgreSQL) is a PostgreSQL procedural language where you can perform more complex tasks than in SQL-like easy computation-and also make use of loops, functions, and triggers. In this post, we are going to see how we can easily convert Oracle procedures into PostgreSQL procedures. Using procedures containing EXECUTE IMMEDIATE statements Tables, data, indexes, constraints, sequences. Command line support allows to automate the migration process. The program has high performance: 2,5 GB database is migrated to PostgreSQL server within less than 20 minutes on an average modern system. Using commit/rollback inside a procedureĥ. MSSQL-to-PostgreSQL is a program to migrate databases from SQL Server to PostgreSQL. Using cursors in procedures when fetching more than one rowĤ. Printing “Hello World” with a procedureģ. SUMMARY: This article gives five examples of converting procedures from Oracle’s PL/SQL procedural language into PostgreSQL’s PL/pgSQL language.ġ.
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