Table variables creation problem

Hi, what i would like todo is put a multiple values result into a Table Variable and reuse it few times in the code (in the select, where, etc..)

My problems are :
- Can't use the XMLPATH method into the Insert into VAR Table
- Where i can call my insert to the var table in the code,  cause i need to know the field RequestId, witch is too soon in the following code.....

Here's my code :




DECLARE @RequestApplications TABLE
(
         Descriptions varchar(4000)
)

INSERT INTO @RequestApplications (Descriptions) (      SELECT ApplicationName + ' '
                        FROM    ApplicationsAccessRequest AAR
                                                       WHERE  AAR.RequestID = RequestID
                                       FOR XML PATH('')
                                                                                   )
-- Result will be "VPN, HS-VPN, WORD, VISIO, "


SELECT R.RequestId, (SELECT TOP 1 Descriptions FROM RequestApplications ) as Apps
FROM       Request      
WHERE            (SELECT TOP 1 Descriptions FROM RequestApplications ) LIKE '%VPN%'                                                              

Anyone know how to resolve this ?

Thanks a lot for you help and excuse my english....
dany651Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

indianguru2Commented:
From what i understand from the Question you are better off with a temp table rather than a table variable.
0
Anthony PerkinsCommented:
Try it this way:
DECLARE @RequestApplications TABLE 
(
         Descriptions varchar(4000) 
)

INSERT @RequestApplications (Descriptions) 
SELECT Descriptions
FROM	(
	SELECT ApplicationName + ' ' Descriptions
	FROM    ApplicationsAccessRequest AAR
	WHERE  AAR.RequestID = RequestID          -- This does not make a lot of sense
	FOR XML PATH('') 
	) a

-- Result will be "VPN, HS-VPN, WORD, VISIO, "

SELECT R.RequestId, (SELECT TOP 1 Descriptions FROM RequestApplications ) as Apps
FROM       Request      
WHERE            (SELECT TOP 1 Descriptions FROM RequestApplications ) LIKE '%VPN%'  

Open in new window

0
dany651Author Commented:
Hi acperkins,  i dont understant your answer,  you write "This does not make a lot of sense" but you didnt specify where i shoud call the insert in my code, i want to create the temp var for each record....
0
The Ultimate Tool Kit for Technolgy Solution Provi

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy for valuable how-to assets including sample agreements, checklists, flowcharts, and more!

Anthony PerkinsCommented:
>>i dont understant your answer,  you write "This does not make a lot of sense"<<
I was specifically referring to the condition:
WHERE  AAR.RequestID = RequestID

That is like saying WHERE 1 = 1 so it is not necessary.

Did you try the query as is? If so, di it give you the right results?  If not what were they and what was the expected results?
0
ava23Commented:
I dont understand your second question, so if you could elaborate more, that would be nice. Here is the solution of your first question:


DECLARE @RequestApplications TABLE
(
         Descriptions varchar(4000)
)

DECLARE @DESC VARCHAR(4000)
SET @DESC = (select ObjectLongName + ', ' from WAcc_BusinessObject for xml path(''))

 insert into @RequestApplications
select @DESC

your insert did not work because of some limitations on usage of FOR XML:
http://msdn.microsoft.com/en-us/library/aa226520(SQL.80).aspx

I hope that helps.
0
dany651Author Commented:
ava23 : Everything is fine with my first problem (VS XMLPATH)  thanks a lot

Second problem :
In my var table construction i want to specify  the RequestId value of my select statement.... so i think my var table construction code should not be before my select statement cause my var table will not know my "RequestId" value.......

In my var table i only want info about one Request,  relationship is 1 to many from "Request" to "ApplicationAccessRequest"

Exemple :

Request Table                 ApplicationAccessRequest Table
RequestId                         RequestId             ApplicationName
2244                                 2244                     SAP
2245                                 2244                     Visual Studio
2246                                 2244                      MS Word
                                         2245                      Lotus Notes
                                         2246                      IE 8
                                         2246                      SAP

my select statement will return :  
RequestId    Apps
2244            SAP, Visual Studio, MS Word,
2245            Lotus Notes,
2246            IE 8, SAP,


Let me know if it's not  clear.....


Thanks a lot for your help everyone
0
dany651Author Commented:
Don't forget that i want to reuse my result (SAP, visual Studio, ..)  in my where clause not only in my select , it's the reason why i don't call my SUB SELECT in my main select directly....
0
ava23Commented:
I could only understand the tables that you have shown, so here is what i can think of to get the third table from table 1 and table 2:

select RequestId, Apps =
          (select distinct [ApplicationName] + ', ' from ApplicationAccessRequest  T2
           where T1.RequestId = T2.RequestId for xml path(''))
from ApplicationAccessRequest   T1
group by RequestId

I hope that helps, if thats not what u were looking for, please explain using tables, would be much better... thanks
0
dany651Author Commented:
Your solution is in the good way but what i need is reuse the result (Apps) in my where clause also to apply filter.... and i dont wanna have to recall the SELECT applicationName... 2 times
0
ava23Commented:
could you please explain with an example? Thanks
0
dany651Author Commented:
yes sure,  it's similar to your exemple except  i dont wanna call the select  2 times (one in the select for apps field and one in the where)...


select RequestId, Apps =
          (select distinct [ApplicationName] + ', ' from ApplicationAccessRequest  T2
           where T1.RequestId = T2.RequestId for xml path(''))
from ApplicationAccessRequest   T1
WHERE  (select distinct [ApplicationName] + ', ' from ApplicationAccessRequest  T2
           where T1.RequestId = T2.RequestId for xml path(''))      LIKE '%MS WORD%'


Are you following me ?

Thanks

dany
0
ava23Commented:
yeah, i got that, but what do you want then? what are you trying to achieve? please explain
0
ava23Commented:
just try an outer query:

SELECT * FROM
(select RequestId, Apps =
          (select distinct [ApplicationName] + ', ' from ApplicationAccessRequest  T2
           where T1.RequestId = T2.RequestId for xml path(''))
from ApplicationAccessRequest   T1
group by RequestId)TMP
WHERE TMP.Apps LIKE '%MS WORD%'
0
dany651Author Commented:
What i would like todo is :

Get my applications in my select stratement and also apply a filter (where clause) to this result

ex :

Result will be the following result cause i select the apps in my statement and i have also apply a filter to only get the record that contains the "MS WORD" applications:
RequestId         Applications
2456                   SAP, VSS, SAP, MS WORD,
3652                   VISIO, MS WORD

Will not be part of my result :
1125                   Lotus Notes,
3345                   VISIO, IE7
0
dany651Author Commented:
Your second result sounds perfect except its remove reference to my Request table witch i need it to get additionnal fields from this table..
0
dany651Author Commented:
i means last exemple (not second result)
0
ava23Commented:
just insert the data from the inner query into a temp table and then use that table for querying
SO,

select RequestId, Apps =
          (select distinct [ApplicationName] + ', ' from ApplicationAccessRequest  T2
           where T1.RequestId = T2.RequestId for xml path(''))
INTO #TEMPTABLE
from ApplicationAccessRequest   T1
group by RequestId

SELECT * FROM #TEMPTABLE WHERE Apps LIKE '%MS WORD%'

DROP TABLE #TEMPTABLE
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
dany651Author Commented:
This it's what i finally do,  put everything in a temp tables and then after doing select on that temps table using a where clause

Thanks a lot
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft SQL Server

From novice to tech pro — start learning today.