comma seperated parameter

Question

comma seperated parameter

Naveen Kumar-807681

Ten Centuries

Points: 1284
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February 19, 2009 at 7:32 am

#94573

hi everybody,
i have 3 tables
1. customer_master(customerid, customername)
2. language_master(languageid, languagename)
3. customer_language(customerid, languageid)
i will get a parameter like 'english, kannada, punjabi' to my stored procedure or query. how simple can I get all the customers who speak all the 3 languages.
Who is wise? He that learns from everyone. Who is powerful? He that governs his passions. Who is rich? He that is content. Who is that? Nobody.:)

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Grant Fritchey SSC Guru Points: 398690 More actions · Answer 1

There are a bunch of functions available in the Scripts area of the site. You do a search to track them down. Here's the one at the top of the list:http://www.sqlservercentral.com/scripts/Miscellaneous/31913/[/url]

"The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
- Theodore Roosevelt

Author of:
SQL Server Execution Plans
SQL Server Query Performance Tuning

Naveen Kumar-807681 Ten Centuries Points: 1284 More actions · Answer 2

Thanks for ur reply. is there any other better way to do this?

Who is wise? He that learns from everyone. Who is powerful? He that governs his passions. Who is rich? He that is content. Who is that? Nobody.:)

Grant Fritchey SSC Guru Points: 398690 More actions · Answer 3

I know of four ways to do this, a function, a tally table, ad hoc queries or changing the data to XML. You have a function. This article [/url]is by Jeff Moden. He's the man where this is concerned. You can simply build a query so that you can insert your comma-delimited list into an IN clause, but that's going to cause recompiles and possibly bad performance. Converting to XML will work, but it's much more memory intensive and slower. I'd stick with the tally table (1st choice) or the function (2nd choice).

"The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
- Theodore Roosevelt

Author of:
SQL Server Execution Plans
SQL Server Query Performance Tuning

Jeff Moden SSC Guru Points: 1003863 More actions · Answer 4

Thanks for the kudo, Grant. 🙂

--Jeff Moden

RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

Change is inevitable... Change for the better is not.

Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

Grant Fritchey SSC Guru Points: 398690 More actions · Answer 5

Credit where it's due.

"The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
- Theodore Roosevelt

Author of:
SQL Server Execution Plans
SQL Server Query Performance Tuning

Ninja's_RGR'us SSC Guru Points: 294069 More actions · Answer 6

Credit is due and all good, but that still does not answer the question....

SELECT m.customerid, m.customername

FROM dbo.customer_master m

inner join dbo.customer_language cl on m.customerid = cl.customerid

inner join dbo.language_master lm on cl.languageid = lm.languageid

where lm.languagename IN (Select languageName from dbo.JeffsFunction(@Languages)) -- Fetch the languages here with Jeff's code

--this is the not so obvious part that answer the question you are asking

GROUP BY m.customerid, m.customername

HAVING COUNT(*) = (SELECT COUNT(*) FROM dbo.JeffsFunction)

You need to know how many languages are in the parameter string (can be in a separate parameter to avoid calling the split function twice), then you need to count how many languages are matching per customer and make sure that those 2 numbers are equal... hence that customer speaks all required languages.

Jeff Moden SSC Guru Points: 1003863 More actions · Answer 7

Ninja's_RGR'us (2/21/2009)
Credit is due and all good, but that still does not answer the question....

True enough... we were waiting on some test data so we could show some tested code.

[font="Arial Black"]Naveen[/font], take a look at the article in my signature below to get better answers quicker.

--Jeff Moden

RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
First step towards the paradigm shift of writing Set Based code:
________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

Change is inevitable... Change for the better is not.

Helpful Links:
How to post code problems
How to Post Performance Problems
Create a Tally Function (fnTally)

Naveen Kumar-807681 Ten Centuries Points: 1284 More actions · Answer 8

Hi

Thanks for all the replies and suggestions. here is the query to get the required reuslt

SELECT c.customer

FROM #customer_master c

INNER JOIN

(

SELECT cl.customerid,COUNT(DISTINCT l.languagename) AS langcnt

FROM #customer_language cl

INNER JOIN #language_master l

ON l.languageid=cl.languageid

INNER JOIN (SELECT ltrim(f.Val) as val FROM dbo.split(@param,',')f)t

ON t.Val=l.languagename

GROUP BY cl.customerid

)tmp

ON tmp.customerid=c.customerid

WHERE langcnt=(SELECT COUNT(DISTINCT f1.Val) FROM dbo.split(@param,',')f1)

parametere will be like

@param = 'hindi, telugu'

Who is wise? He that learns from everyone. Who is powerful? He that governs his passions. Who is rich? He that is content. Who is that? Nobody.:)