UPDATE pay_method_basic_info ft INNER JOIN ( SELECT channel_id, method_id, IF ( @channelId = t.channel_id, @
UPDATE pay_method_basic_info ft INNER JOIN ( SELECT channel_id, method_id, IF ( @channelId = t.channel_id, @row_num := @row_num + 1, @row_num := 1 ) AS row_num, @channelId := t.channel_id FROM pay_method_basic_info t ) mt ON ft.channel_id = mt.channel_id AND ft.method_id = mt.method_id SET ft.method_id = ft.channel_id * 100 + row_num
Mysql 按组内顺序 分配序号
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