Dreiwertige Logik
BigQuery
Db2 (LUW)
MariaDB
MySQL
Oracle DB
PostgreSQL
SQL Server
SQLite
2005
2007
2009
2011
2013
2015
2017
2019
2021
✓ 3.6.1+
⚠ 3.5.7
✓ 2008R2+
✓ 8.4+
⚠ 8.3
✓ 11gR1+
✓ 5.0+
✓ 5.1+
✓ 9.7+
✓ 2.0+