Question

I’m trying to convert an MS Access query to SQL server, but I can’t figure out the SQL server equivalent for the following code:

First(IIf(DateDiff("yyyy",[DateOfBirth],"31-Aug-2012")+Int(Format("31-Aug-2012","mmdd")<Format([DateOfBirth],"mmdd"))<18,'Parent/Guardian of:',Null)) AS PG, 
First(IIf(DateDiff("yyyy",[DateOfBirth],Now())+Int(Format(Now(),"mmdd")<Format([DateOfBirth],"mmdd"))<18,'Parent/Guardian of:',Null)) AS PG_old,  

Here is my unfinished attempt:

First(CASE WHEN (DateDiff("yyyy",[DateOfBirth],"31-Aug-2012")+Int((DATEPART(mm,(CONVERT(DATE,"31-Aug-2012",103))) + (DATEPART(dd,(CONVERT(DATE,"31-Aug-2012",103)))))<Format([DateOfBirth],"mmdd")) < 18 THEN 'Parent/Guardian of:'
           ELSE Null)END) AS PG, 

Answer 1

i hope below query would give you required output

 select top 1 (select case When  DATEDIFF(year, DateOfBirth, '31-Aug-2012') < 18 Then 'Parent/Guardian of:' else Null  End  ) from table_name