Comments on: T-SQL – How to select multiple rows into a single row

By: mrinal

mrinal — Thu, 01 Dec 2011 07:10:26 +0000

thanks

By: Dobert

Dobert — Wed, 17 Aug 2011 09:19:56 +0000

Thanks a lot Jarosław, your page saved me a lot of time!

Didn’t need as sophisticated solution as you and what Chris suggested was perfect for my needs

By: Rais Hussain

Rais Hussain — Mon, 04 Jul 2011 11:48:08 +0000

I have one table named Fixture which contains a column FixtureID. For instance, I want to get top 5 FixtureID and pass it to another query like comma separated value, but the comparison would be with BIGINT field like;

CREATE TABLE Fixture (FixtureID BIGINT)

INSERT INTO Fixture(FixtureID) VALUES(11111111)
INSERT INTO Fixture(FixtureID) VALUES(22222222)
INSERT INTO Fixture(FixtureID) VALUES(33333333)
INSERT INTO Fixture(FixtureID) VALUES(44444444)
INSERT INTO Fixture(FixtureID) VALUES(55555555)

DECLARE @res NVARCHAR(max)
SET @res = ”

SELECT TOP 5 @res = @res + FixtureID + ‘, ‘ from Fixture
SELECT @res = substring(@res,1,len(@res)-1)

SELECT * FROM Match
WHERE FixtureID IN (@res)

FixtureID is BIGINT, how should I compare comma separated values with BIGINT column?

By: TC Tham

TC Tham — Tue, 22 Jun 2010 03:01:53 +0000

Can try use my code if you are interested.

Sorry if it is abit messy, I’m new to SQL and I’m not particularly good at coding.

——————————————————————–
declare @Counter int
declare @RowCount int
declare @RESULT NVARCHAR(max)
declare @TempRESULT NVARCHAR(max)
declare @Table Table (
internalID int identity(1,1),
id int,
Name varchar(max)
)

insert @table (id, Name)
select id, Name from People
order by id asc

set @Counter = 0
set @RESULT = ”
select @RowCount = COUNT(internalID) from @Table
while @Counter < @RowCount
begin
set @Counter = @Counter + 1
Select @TempRESULT = cast(id as varchar(max)) from @Table where internalID = @Counter
select @TempRESULT = @TempRESULT + ':' + Name from @Table where internalID = @Counter
if (@Counter = 1)
begin
set @RESULT = @TempRESULT
end
else
begin
set @RESULT = @RESULT + ', ' + @TempRESULT
end
end

——————————————————————

It should work. I modified it abit from my codings to this.

By: Chris

Chris — Thu, 10 Jun 2010 13:48:19 +0000

Simple code for a simple problem. This is an oldie….

declare @RESULT NVARCHAR(max)
set @RESULT = ”

SELECT @RESULT = @RESULT + CASE @RESULT WHEN ” THEN ” ELSE ‘, ‘ END + cast(id as NVARCHAR(MAX)) + ‘: ‘ + ISNULL(NAME,’ ‘)
FROM people
ORDER BY id

By: Jarosław Dobrzański

Jarosław Dobrzański — Wed, 26 Aug 2009 12:22:09 +0000

Cursors are an option here but I didn’t want to use them. Not only is it (much) longer but also not that efficient (especially if a table holds lots of data).

By: witecat

witecat — Wed, 26 Aug 2009 12:09:13 +0000

— HOW ABOUT USING CURSORS??:

— SELECT ONE COLUMN —
DECLARE @colvalu varchar (150),
@cString1 varchar (MAX),
@cString2 varchar (MAX)
SET @cString2 = ”

DECLARE my_cursor CURSOR FOR
select distinct COLNAME from TEBLENAME
OPEN my_cursor

FETCH NEXT FROM my_cursor
INTO @colvalu

WHILE @@FETCH_STATUS = 0
BEGIN
SET @cString1 = @colvalu + ‘,’
FETCH NEXT FROM my_cursor
INTO @colvalu
SET @cString2 = @cString2 + @cString1
END
SET @cString2 = Left(@cString2, Len(@cString2)-1)
print @cString2
CLOSE my_cursor
DEALLOCATE my_cursor

— SELECT 2(+) COLUMNS —
DECLARE @colvalu_1 varchar (150),
@colvalu_2 varchar (150),
@cString1 varchar (MAX),
@cString2 varchar (MAX)
SET @cString2 = ”

DECLARE my_cursor CURSOR FOR
SELECT COLNAME_1, COLNAME_2 FROM DBNAME
OPEN my_cursor

FETCH NEXT FROM my_cursor
INTO @colvalu_1, @colvalu_2

WHILE @@FETCH_STATUS = 0
BEGIN
SET @cString1 = @colvalu_1 + @colvalu_2 + ‘,’
FETCH NEXT FROM my_cursor
INTO @colvalu_1, @colvalu_2
SET @cString2 = @cString2 + @cString1
END
SET @cString2 = Left(@cString2, Len(@cString2)-1)
print @cString2
CLOSE my_cursor
DEALLOCATE my_cursor

By: simon

simon — Sun, 02 Aug 2009 05:57:25 +0000

Cool, thanks for this guys, I got stuck with something like this a while back. I could not do it with SQL, I had to move the formatting to my application.

By: Jarosław Dobrzański

Jarosław Dobrzański — Wed, 29 Jul 2009 19:59:09 +0000

So true, you can always replace parts of the string… Sometimes easy solutions are the hardest to find

By: Lashek

Lashek — Wed, 29 Jul 2009 15:04:54 +0000

You could always stream it as XML Data and convert it into one column that way, similar to what you started with:

ISNULL(LTRIM(RTRIM(REPLACE(
(
SELECT CAST(ID AS NVARCHAR(MAX)) + ‘: ‘ + NAME AS [data()]
FROM People
ORDER BY ID
FOR XML PATH (”)
), ”, ‘,’))), ”)

For instances where it might “replace” strings with things like >… you could always encapsulate in a REPLACE string to change it back?

I use this trick a lot, but all the data I pass to it is alphanumeric with no symbols or unicode characters.