如果mysql

Question

如果enrollDate和cancelDate相同，我需要消除行。所以我写了如下查询  SELECT a.id, a.clientId, a.enrollDate, a.cancelDate FROM gap_borrower a WHERE STR_TO_DATE( a. {loanEndDate {1}} {enrollDate {1}} {cancelDate {1}}

但是如果cancelDate是Null，它没有显示为不同。（只需要消除上图中的id = 8551。这是我的问题）所以我用if条件写了另一个查询

,  '%Y-%m-%d' ) >= STR_TO_DATE(  '2015-12-31',  '%Y-%m-%d' ) AND FIND_IN_SET( a.status,  'A,C' ) AND STR_TO_DATE( a.

它也失败了。请指导我解决这个问题

Answer 1

尝试类似的东西：

SELECT a.id, a.clientId, a.enrollDate, a.cancelDate 
FROM gap_borrower a WHERE 
    DATE(a.loanEndDate) >= DATE('2015-12-31') 
    AND FIND_IN_SET( a.status,  'A,C' ) 
    AND (DATE(a.enrollDate) <> DATE(a.cancelDate) OR a.enrollDate IS NULL OR a.cancelDate IS NULL)
    --uncomment this if you don't need rows where  the both dates are null
    --AND (a.enrollDate IS NOT NULL or a.cancelDate IS NOT NULL)