mysql delete if not in another table - SQL 代码示例

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📜 mysql delete if not in another table - SQL 代码示例

📅 最后修改于: 2022-03-11 15:05:17.894000 🧑 作者: Mango

DELETE FROM BLOB 
 WHERE NOT EXISTS(SELECT NULL
                    FROM FILES f
                   WHERE f.id = fileid)