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有什麼辦法可以在mysql中的重複鍵更新插入增量更新嗎?增量更新插入...重複密鑰
例W /錯誤:
insert into blah (user_id, prefix, email_id, field, source)
select user_id, substring(name, 1, 3), contact_email_id, 2, source from address_book
on duplicate key update source = source + values(source);
ERROR 1052 (23000): Column 'source' in field list is ambiguous
必須做好在讀OP比我好;採取點 – zanlok 2010-12-13 21:16:10