使用t-sql从身份证号中提取生日(转自:http://www.cnblogs.com/yukaizhao/archive/2008/05/22/sql_getbirthday_from_id.html)
使用t-sql从身份证号中提取生日,一下是转换16位身份证号的例子,仅供参考。
create function getDateFromID(
@id char(15)
)
returns datetime
as
begin
declare @birthPart char(6);
set @birthPart = substring(@id,7,6);
declare @year int;
set @year = cast(left(@birthPart,2) as int);
if @year < 10
SET @year = 2000 + @year;
else
SET @year = 1900 + @year;
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
declare @birthday datetime;
set @birthday = cast(cast(@year as char(4)) + '-'
+ substring(@birthpart,3,2) + '-'
+ substring(@birthpart,6,2) as datetime)
return @birthday
end
GO
declare @id char(16)
set @id = '510106830328511';
print dbo.getDateFromID(@id)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)