SQL Server と Azure SQL Database の構文: [ WITH <common_table_expression> [,...n] ] MERGE [ TOP ( expression ) [ PERCENT ] ] [ INTO ] <target_table> [ WITH ( <merge_hint> ) ] [ [ AS ] table_alias ] USING <table_source> [ [ AS ] table_alias ] ON <merge_search_condition> [ WHEN MATCHED [ AND <clause_search_condition> ] THEN <merge_matched> ] [ ...n ] [ WHEN NOT MATCHED [ BY TARGET ] [ AND <clause_search
![MERGE (Transact-SQL) - SQL Server](https://cdn-ak-scissors.b.st-hatena.com/image/square/d6e4cb632c7025e9f5e05fd314fbf6dcd6144e8d/height=288;version=1;width=512/https%3A%2F%2Flearn.microsoft.com%2Fen-us%2Fmedia%2Fopen-graph-image.png)