sample91.sql

T-SQL示例大全

/* 文件名称: Sample91.sql */
USE 北风贸易

SELECT 姓名,年龄 = DateDiff(yy,出生日期,GETDATE())
    FROM 飞狐工作室
    ORDER BY 年龄 DESC

SELECT 姓名,年龄 = DateDiff(yy,出生日期,GETDATE())
    FROM 飞狐工作室
    ORDER BY 2 DESC

SELECT 年龄 = DateDiff(yy,出生日期,GETDATE()),人数 = COUNT(*)
    FROM 飞狐工作室
    GROUP BY DateDiff(yy,出生日期,GETDATE())
    HAVING DateDiff(yy,出生日期,GETDATE()) > 21
    ORDER BY 年龄 DESC