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如果执行了以下的语句,则brand等于‘OPPO’条件所对应的数据不会做改变,但是sequence_brand列除brand = 'OPPO'之外的所有数据都会变为0
错误语句:update t_insurance_phone_list set sequence_brand = 5 and brand = 'OPPO'
正确语句:update t_insurance_phone_list set sequence_brand = 5 ,brand = 'OPPO'