Execute Dynamic SQL commands in SQL Server

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In some applications having hard-coded SQL statements is not appealing, because of the dynamic nature of the queries being issued against the database server. Because of this sometimes there is a need to dynamically create a SQL statement on the fly and then run that command. This can be done quite simply from the application perspective where the statement is built on the fly whether you are using ASP.NET , ColdFusion or any other programming language. But how do you do this from within a SQL Server stored procedure? SQL Server offers a few ways of running a dynamically built SQL statement. These ways are: Writing a query with parameters Using EXEC Using sp_executesql Writing a query with parameters This first approach is pretty straightforward if you only need to pass parameters into the WHERE clause of your SQL statement. Let’s say we need to find all records from the Customers table where City = ‘London’. This can be done easily as the following example shows. ...
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How To Sort DateField(where datafield is stored as varchar)

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set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go




ALTER proc [dbo].[usp_getsevent]

@userid int

as
create table #tempdat (scheduleeventid int, eventdate varchar(100),opponents varchar(100),locationname varchar(100),eventtime varchar(100),officials varchar(100))
create table #tempdat1 (scheduleeventid int, eventdate varchar(100),opponents varchar(100),locationname varchar(100),eventtime varchar(100),officials varchar(100))
create table #tempdat2 (scheduleeventid int, eventdate varchar(100),opponents varchar(100),locationname varchar (100),eventtime varchar(100),officials varchar(100))
declare @scheduleeventid int, @eventdate varchar(100),@opponents varchar(100),@locationname varchar(100),@eventtime varchar(100),@officials varchar(100),@INDEX varchar(10),@tdate varchar(100),@tempdate varchar(100),@tempdate1 varchar(100),@tempdate2 varchar(100)


BEGIN
DECLARE date_Cursor CURSOR FOR
SELECT scheduleEventid,eventdate,opponents,locationname,eventtime,officials FROM scheduledevent where eventdate NOT like '%~%' AND userid = @userid

OPEN date_Cursor

FETCH NEXT FROM date_Cursor
INTO @scheduleeventid,@eventdate,@opponents,@locationname,@eventtime,@officials

WHILE @@FETCH_STATUS = 0
BEGIN
SET @INDEX = CHARINDEX('-', @eventdate)
IF @INDEX >0
BEGIN
SET @tempdate = RIGHT(@eventdate, LEN(@tdate)-@INDEX)
insert into #tempdat (scheduleeventid,eventdate,opponents,locationname,eventtime,officials) values (@scheduleeventid,@eventdate,@opponents,@locationname,@eventtime,@officials)
END
ELSE
BEGIN
insert into #tempdat (scheduleeventid,eventdate,opponents,locationname,eventtime,officials) values (@scheduleeventid,@eventdate,@opponents,@locationname,@eventtime,@officials)
END


FETCH NEXT FROM date_Cursor
INTO @scheduleeventid,@eventdate,@opponents,@locationname,@eventtime,@officials
END

CLOSE date_Cursor
DEALLOCATE date_Cursor

insert into #tempdat1 select * from #tempdat order by cast(convert(varchar(10),eventdate,101)AS datetime) desc

insert into #tempdat2 SELECT scheduleEventid,eventdate,opponents,locationname,eventtime,officials FROM scheduledevent where eventdate like '%~%' And userid = @userid

insert into #tempdat1 SELECT * FROM #tempdat2

SELECT * from #tempdat1



drop table #tempdat
drop table #tempdat1
drop table #tempdat2

END

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