oracle中merge into用法及实例解析
时间：2018/5/9 22:33:01阅读：
merge into的形式：MERGE INTO [target-table] A USING [source-table sql] B ON([conditional expression] and [...]...) WHEN MATCHED THEN [UPDATE sql] WHEN NOT MATCHED THEN [INSERT sql]
merge into的形式：
MERGE INTO [target-table] A USING [source-table sql] B ON([conditional expression] and [...]...) WHEN MATCHED THEN [UPDATE sql] WHEN NOT MATCHED THEN [INSERT sql]