dayofweek
BigQuery
Db2 (LUW)
DuckDB
H2
MariaDB
MySQL
Oracle DB
PostgreSQL
SQL Server
SQLite
2015
2017
2019
2021
2023
2025
2.3.230 - 2.4.240
a
1.4.197 - 1.4.200
a
1.0.0 - 1.4.0
b
2.0
a
Sunday = 1
Sunday = 0