Data source support
Databases supported by AT mode include: MySQL, Oracle, PostgreSQL, TiDB, and MariaDB.
TCC mode does not rely on data sources (for version 1.4.2 and before). After version 1.4.2, TCC anti-hanging measures are added, which requires data source support.
Saga mode does not rely on data sources.
XA mode only supports databases that implement the XA protocol. Seata supports MySQL, Oracle, PostgreSQL and MariaDB.