可以插入这样的多行 :
INSERT INTO table VALUES (...), (...), (...)...
但对于用其身份来更新行, UPDATE 语法中没有这样的快捷键 。
但这样如何:
INSERT INTO table (id, columns-to-update) VALUES (1, values), (2, values)
ON DUPLICATE KEY UPDATE column=VALUES(column)...
这是在单一查询中更新多行的有效方式吗? 还是仅仅在总体上更好地发布多个(多达数百个)非直接询问?
是的,这是一个完全有效的方法 进行多次更新
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