Drop procedure if exists
BigQuery
Db2 (LUW)
MariaDB
MySQL
Oracle DB
PostgreSQL
SQL Server
SQLite
2005
2007
2009
2011
2013
2015
2017
2019
2021
2017
11
11gR1 - 21c
5.0
5.1
11.1 - 11.5.8
2.0