unique index … include
Db2 (LUW)
MariaDB
MySQL
Oracle DB
PostgreSQL
SQL Server
SQLite
2009
2011
2013
2015
2017
2019
2021
⊘ 3.5.7 - 3.43.0
✓ 2008R2 - 2022
✓ 11 - 15
⊘ 8.3 - 10
⊘ 11gR1 - 21c
a
⊘ 5.0 - 8.0.34
⊘ 5.1 - 10.11
✓ 9.7 - 11.5.8
Use
unique (…) using index …
with an index that has more columns