Select Query to comma seperated string.

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Select Query to comma seperated string.

nilesh k

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Points: 1457
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August 24, 2009 at 4:48 am

#133124

Hi All
I have Nvarchar Column in a table which contains values like
1,2,3,4
1,4
25,26,27,28,29,30,31,32
2
I want to find out number of Rows in a table containg only '2'.
(ie. Query should return me 2 as Result in Above case)
i have tried 'IN' and 'LIKE' operators ,However both are failing me
to give correct results.
If anyone can suggest me on this!!!

Viewing 15 posts - 1 through 15 (of 19 total)

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Dave Ballantyne SSC-Dedicated Points: 33566 More actions · Answer 1

Are you not making this more complicated that it needs to be ?

Select * from table where col = '2'

Will do what you need.

Clear Sky SQL
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nilesh k Default port Points: 1457 More actions · Answer 2

Hi,

This query will return me only 1 record. ie. Record with only 2 in it.

Regards,

Dave Ballantyne SSC-Dedicated Points: 33566 More actions · Answer 3

Isnt that what you wanted ?

I want to find out number of Rows in a table containg only '2'.

Clear Sky SQL
My Blog[/url]

nilesh k Default port Points: 1457 More actions · Answer 4

Nope.

I wanted number of rows containing ONLY 2

Regards,

David Burrows SSC Guru Points: 65138 More actions · Answer 5

If what you posted is interpreted as 'result should show the 2 rows which contains the digit 2' then

Select * from table where ','+col+',' LIKE '%,2,%'

and

Select COUNT(*) from table where ','+col+',' LIKE '%,2,%'

will give you the number of rows

But performance will be bad as a table or index scan will be required

*Editied to remove = signs :blush:

Far away is close at hand in the images of elsewhere.
Anon.

Dave Ballantyne SSC-Dedicated Points: 33566 More actions · Answer 6

Still not clear ...

Please post a script to create the table and insert values

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Andeavour SSCrazy Points: 2600 More actions · Answer 7

That's what Dave's given you. I think what you mean is the number of rows that contain a "2", but not "12" or "20" etc. So the row 1,2,3,4 would count, but 10,11,12 would not...

You could search for where (col = '2' or col = ',2' or col = ',2,' or col = '2,'). It's very messy, and could probably be done better in a case statement or a substring.

Grant Fritchey SSC Guru Points: 398717 More actions · Answer 8

So, to get the number of rows you'd just modify the query to do a count

SELECT COUNT(*)

FROM table

WHERE col = '2'

It's just a straight aggregate function. If you need to add other columns besides the count, simply GROUP BY the appropriate column.

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Dave Ballantyne SSC-Dedicated Points: 33566 More actions · Answer 9

drop table #t1

go

create table #t1

(

RowId integer,

ValueStr nvarchar(50)

)

go

insert into #t1 values(1,'1,2,3,4')

insert into #t1 values(2,'4')

insert into #t1 values(3,'25,26,27,28,29,30,31,32')

insert into #t1 values(4,'2')

go

select * from #t1 where ValueStr = '2'

go

select * from #t1 where ValueStr like '%2%'

With this are you expecting Rows with the id of 1 and 4 or only 4 ????

Clear Sky SQL
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nilesh k Default port Points: 1457 More actions · Answer 10

Id of 1 and 4.

I should get result as

RowId ValueStr

1 1,2,3,4

4 2

Regards,

Nilesh.

nilesh k Default port Points: 1457 More actions · Answer 11

Id of 1 and 4

I should get result as

RowId ValueStr

1 1,2,3,4

4 2

gugan_ta SSCommitted Points: 1649 More actions · Answer 12

gugan_ta

SSCommitted

Points: 1649

August 24, 2009 at 6:09 am

#1043561

hI,

This will work

like '[2]' or i like '%,2,%'

joeroshan SSChampion Points: 10377 More actions · Answer 13

if apply David Burrows's suggestion in the Dave's code it would be

select * from #t1 where ','+ValueStr+',' like '%,2,%'

no?

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Roshan Joe

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Andeavour SSCrazy Points: 2600 More actions · Answer 14

If the answer to that is 1 & 4, then Dave had is spot on with:

drop table #t1

go

create table #t1

(

RowId integer,

ValueStr nvarchar(50)

)

go

insert into #t1 values(1,'1,2,3,4')

insert into #t1 values(2,'4')

insert into #t1 values(3,'25,26,27,28,29,30,31,32')

insert into #t1 values(4,'2')

go

select * from #t1 where ','+ValueStr+',' LIKE '%,2,%'

go

That will return 1 & 4. If you adjust that to

select count (*) from #t1 where ','+ValueStr+',' LIKE '%,2,%'

go

then you'll get your count.