必须设置常量字段MySQL

Question

属性'Territory程序'是一个常量字段，必须在结果集中将其设置为'Territory and Quota Program'常量，我不想在表中添加新列，所以我该如何选择声明是否可能？

到目前为止，我的代码看起来像这样。

Select user.p,user.e,CONCAT(user.p,user.pl,user.role) AS Territories, date_format(user.snapshot_date, '%d/%m/%y') As Startdate,date_format(user.refresh_date,'%d/%m/%y') As EndDate

Answer 1

只需在select列表中添加乱抛垃圾的值：

select 
    user.p,
    user.e,
    concat(user.p,user.pl,user.role) AS Territories, 
    date_format(user.snapshot_date, '%d/%m/%y') As Startdate,
    date_format(user.refresh_date,'%d/%m/%y') As EndDate,
    'Territory and Quota Program' territory_program
from ...