我有付款表字段

更新原因和金额以及总计字段更改为负数
UPDATE payment
SET reason = 'refund'
WHERE uid =5 AND date = '2012-05-01' AND accid =2
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更新单个查询是否可能?
trasaction表描述字段有一些值,它工作正常.说明feild默认值为NULL,它不起作用..
update transaction set domain='hiox.com',description=CONACT(description,',domain swapped from hioxindia.com to hiox.com') where id=23602
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帮我..
mysql ×2