将多个验证应用于SQL记录并识别所有失败的验证

如何解决将多个验证应用于SQL记录并识别所有失败的验证

我有一个要求，我需要在SQL数据库中捕获所有失败的验证。

我有下表：

department     age 
IT             27  
IT             25  
Marketing      29
Fashion        30
IT             32
IT             28

我的验证规则如下：

1. 部门应该是IT
2. 年龄应该在20多岁
3. 年龄不应该是25

这些是示例验证，我的要求是捕获所有失败的记录以及失败的条件，我通过使用union实现了它，如下所示：

    select department,age,'Age is 25' as FailedValidation,1 as FailedValidationId from 
    CENTRALFINANCETAX_IM_DEV.salluTest where age = 25
    union
    select department,'Age is not in 20s' as FailedValidation,2 as FailedValidationId from 
    CENTRALFINANCETAX_IM_DEV.salluTest where age > 29
    union
    select department,'Dept not IT' as FailedValidation,3 as FailedValidationId from 
    CENTRALFINANCETAX_IM_DEV.salluTest where department != "IT"

以下是获得的结果：

department  age FailedValidation    FailedValidationId
IT          32  Age is not in 20s   2
Marketing   29  Dept not IT         3
Fashion     30  Dept not IT         3
Fashion     30  Age is not in 20s   2
IT          25  Age is 25           1

但是，如果验证增加，我必须添加许多选择查询。

是否有其他更好的性能方法？

解决方法

您可以使用cross apply：

select t.*,x.*
from centralfinancetax_im_dev.sallutest t
cross apply (values
    (1,case when t.age = 25 then 'Age is 25' end),(2,case when t.age > 29 then 'Age is not in 20s' end),(3,case when t.department <> 'IT' then 'Dept not IT' end)
) x(FailedValidationId,FailedValidation)
where x.FailedValidation is not null