SQL Server中的动态字段

Question

如何在SQL Server表中创建动态字段？我想将它添加到create table命令:

isDeleted = CASE WHEN DeleteDate is null THEN 0 ELSE 1

Answer 1

您正在寻找创建计算列.

CREATE TABLE dbo.YourTable (
    ...
    isDeleted AS CASE WHEN DeleteDate IS NULL THEN 0 ELSE 1 END 
);