Self-referencing delete

BigQueryDb2 (LUW)MariaDBMySQLOracle DBPostgreSQLSQL ServerSQLite200520072009201120132015201720192021✓ 3.5.7+a✓ 2008R2+a✓ 8.3+a✓ 11gR1+a⊘ 5.0 - 8.0.31✓ 10.3+a⊘ 5.1 - 10.2✓ 9.7+a✓ 2.0+a
  1. Syntax accepted, functionality not tested thoroughly