Basistabelle:
UNIQUE
BigQuery
Db2 (LUW)
MariaDB
MySQL
Oracle DB
PostgreSQL
SQL Server
SQLite
2005
2007
2009
2011
2013
2015
2017
2019
2021
⊘ 2008R2 - 2022
⊘ 8.3 - 15
⊘ 11gR1 - 21c
✓ 5.7+
⊘ 9.7 - 11.5.8