mysql 查询去除表中(多个条件确定的一个数据)

mysql  查询去除表中(多个条件确定的一个数据)

1.原始数据表内容


2.sql语句

SELECT 
  order_id,
  order_name,
  state,
  CASE
    WHEN A.order_id = 1 
    AND A.order_name = '订单1' 
    AND A.state = 1 
    THEN 'yes' 
    ELSE 'no' 
  END AS flag 
FROM
  (SELECT 
    order_id,
    order_name,
    state,
    '' AS flag 
  FROM
    test.`a_order`) AS A 

3.结果


4.去除确定的第一条数据后的结果



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转载自blog.csdn.net/caox_nazi/article/details/78625803