MsSql

关注公众号 jb51net

关闭
首页 > 数据库 > MsSql > sql日期计算年龄

sql通过日期判断年龄函数的示例代码

作者:kueizheng

这篇文章主要介绍了sql通过日期判断年龄函数,本文通过示例代码给大家介绍的非常详细,对大家的学习或工作具有一定的参考借鉴价值,需要的朋友可以参考下

定义函数:

CREATE FUNCTION [dbo].[GetAge]  
(  
@BirthDay nvarchar(20) --生日  
)  
RETURNS varchar(20)  
AS  
BEGIN  
if(@BirthDay is NUlL or @BirthDay='')
return '';
 -- Declare the return variable here  
 DECLARE @age varchar(20)  
 DECLARE @years int  
 DECLARE @months int  
 DECLARE @days int  
 -- Add the T-SQL statements to compute the return value here  
 set @age = ''  
  
 set @years = year(GETDATE()) - year(@birthday)  
 set @months = month(GETDATE()) - month(@birthday)  
 if day(@birthday)<=day(GETDATE())  
   set @days = day(GETDATE()) - day(@birthday)  
 else  
   begin  
     set @months = @months - 1  
     if MONTH(@birthday) in (1,3,5,7,8,10,12)  
       set @days = 31-day(@birthday)+day(GETDATE())  
     else if MONTH(@birthday) in (4,6,9,11)  
       set @days = 30-day(@birthday)+day(GETDATE())  
     else if MONTH(@birthday) = 2  
       if (year(@birthday)%4 = 0 and year(@birthday)%100 <> 0) or year(@birthday)%400 = 0  
         set @days = 29-day(@birthday)+day(GETDATE())  
       else  
         set @days = 28-day(@birthday)+day(GETDATE())  
   end  
 if @months < 0  
   begin  
     set @years = @years - 1  
     set @months = @months + 12  
   end  
 if @years = 0 and @months = 0  
 begin  
     return convert(varchar,@days+1) + '天'  
  end  
 if @years > 0  
   set @age = cast(@years as varchar(5)) + '岁'  
 if @years < 3 and @months > 0 and @years>-1  
 begin  
   set @age = @age + cast(@months as varchar(5)) + '月'  
 end  
 if @years<0  
 set @age=''  
 RETURN @age  
END

使用函数:

到此这篇关于sql通过日期判断年龄函数的示例代码的文章就介绍到这了,更多相关sql日期计算年龄内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家!

您可能感兴趣的文章:
阅读全文