大佬们帮忙看看sql要怎么调整？前端传参A时，organization为空的数据也要展示

前端传参fine_username为A时，展示所有数据。现在这样写organization为空的数据过滤掉了，求大佬指点！

select * from l where 1=1 ${if(len(organization) == 0,"","and organization = '" + organization + "'")}

and organization in (select distinct organization from m where 1=1 ${if(or(len(fine_username) == 0,fine_username = “A”),””,”and login = '" + fine_username + "'")})

FineReport SQL TYJCC 发布于 2023-1-9 22:08 （编辑于 2023-1-9 22:51）

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StudyYLLv6初级互助
发布于2023-1-10 08:43（编辑于 2023-1-10 08:44）

原因应该是in包含null值不会查询出null的结果。可以百度看看原因或参考https://blog.csdn.net/weixin_39742065/article/details/116539668

如果是null值的原因建议fine_username判断提前

and organization in (select distinct organization from m where 1=1 ${if(or(len(fine_username) == 0,fine_username = “A”),””,”and login = '" + fine_username + "'")})改成

and ${if(or(len(fine_username) == 0,fine_username = "A"),"1=1","organization in (select distinct organization from m where 1=1 and login = '" + fine_username + "')"}当然这样依旧有问题，当fine_username是其他值但是对应的organization 也是null时，应该也是查不出的。

luojian0323Lv7资深互助
发布于2023-1-10 08:23

and organization in (select distinct organization from m where 1=1 ${if(or(len(fine_username) == 0,fine_username = “A”),””,”and login = '" + fine_username + "'")})

你的这句没有加入organization为空的判断

select * from l where 1=1 ${if(len(organization) == 0,"","and organization = '" + organization + "' and organization in (select distinct organization from m where 1=1 ${if(or(len(fine_username) == 0,fine_username = "A"),"","and login = '" + fine_username + "'")}

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最后回答于：2023-1-10 08:44

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