from … for system_time …
BigQuery
Db2 (LUW)
DuckDB
H2
MariaDB
MySQL
Oracle DB
PostgreSQL
SQL Server
SQLite
2009
2011
2013
2015
2017
2019
2021
2023
⊘ 3.5.7 - 3.51.0
⚠ 2016 - 2025
a
⊘ 2008R2 - 2014
⊘ 8.3 - 18
⊘ 19c - 23.26.0
b
⊘ 11gR1 - 18c
⊘ 5.0 - 9.5.0
⚠ 10.3 - 12.1.2
a
⊘ 5.1 - 10.2
⊘ 1.4.191 - 2.4.240
⊘ 1.4.0
b
⊘ 1.0.0 - 1.3.0
⚠ 10.5 - 12.1.2
a
⊘ 9.7
⚠ 2.0
c
d
Some minor omissions and variations
Has non-standard alternative
Without DDL (automatically)
Only
FOR SYSTEM_TIME AS OF