Comments on: SQL SERVER – Storing Variable Values in Temporary Array or Temporary List

By: Harsh

Harsh — Wed, 31 Oct 2012 08:09:31 +0000

in above script, not equal sign is not displayed in last statement & last union statement

By: Harsh

Harsh — Wed, 31 Oct 2012 07:52:38 +0000

We can also get a similar result using CTE

Declare @stringvar VARCHAR(max)
set @stringvar = ‘a,10,20,c,30,d’;
with cte(IDs,stringvalue,id)
as
(
select cast(” as VARCHAR(MAX)), @stringvar, 0
union all
select left(stringvalue,charindex(‘,’,stringvalue,0)-1), right(stringvalue,len(stringvalue)-charindex(‘,’,stringvalue,0)), id+1 from cte where charindex(‘,’,stringvalue,0)>0
union all
select stringvalue,”, id+1 from cte where charindex(‘,’,stringvalue,0)=0 and stringvalue”
)
select IDs from cte where IDs”

By: Niraj Patil

Niraj Patil — Wed, 31 Oct 2012 02:11:37 +0000

Hi Pinal ,
If values are stored in variable then how above script.works.
e.g:
Declare @var NVARCHAR(max)
@var = ‘a,b,c,d’

By: Girijesh Pandey

Girijesh Pandey — Tue, 30 Oct 2012 13:05:29 +0000

Yes, it works only with SQL Server 2008 onwards.

By: Kumar Harsh

Kumar Harsh — Sun, 28 Oct 2012 10:58:26 +0000

If for multidatatype varchar is use then to manipulate those data ,one has to use isnumeric,isdate etc. and do manipulation,which is little lengthy process.Beside this one cannot find the exact other datatype beside these two isdate and isnumeric.So process is lengthy and complicated.

In case of Sql_variant,same thing is very easy.We can use sql_variant_property to do so.

declare @t table(col1 sql_variant )
insert into @t values(1),(’2′)
Select sql_variant_property(col1, ‘BaseType’) from @t

declare @t table(col1 varchar(100) )
insert into @t values(1),(’2′)
Select sql_variant_property(col1, ‘BaseType’) from @t

By: Kumar Harsh

Kumar Harsh — Sun, 28 Oct 2012 10:43:07 +0000

For multi datatype,one can use sql_variant datatype supported since 2000.
Though I have never use this.I read it has some limitation.
http://msdn.microsoft.com/en-us/library/aa223955%28v=sql.80%29.aspx

So when should i choose sql_variant over varchar ?what is the advantage of sql_variant ?

By: ndpatil999

ndpatil999 — Sat, 27 Oct 2012 05:15:59 +0000

Nice one

By: ndpatil999

ndpatil999 — Sat, 27 Oct 2012 05:15:23 +0000

Nice one…………………

By: Raushan Jha

Raushan Jha — Sat, 27 Oct 2012 05:06:38 +0000

Hi PInal,

Given query I tried on “Sql Server 2008 R2″ as well as “Sql Server 2012″ it’s working in both of them.
——————————————————————–
DECLARE @ListofIDs TABLE(IDs VARCHAR(100));
INSERT INTO @ListofIDs
VALUES(‘a’),(’10′),(’20′),(‘c’),(’30′),(‘d’);
SELECT IDs FROM @ListofIDs;
——————————————————————–

In “Sql Server 2005″ it’ll not work.

By: Sandeep Mittal

Sandeep Mittal — Sat, 27 Oct 2012 04:28:33 +0000

Dear Pinal

The above script will even work in SQL Server 2008 also as both table variable and grouping sets are available in SQL Server 2008 onwards