SQL Clone
SQLServerCentral is supported by Redgate
 
Log in  ::  Register  ::  Not logged in
 
 
 


Group by without soring


Group by without soring

Author
Message
masoudk1990
masoudk1990
SSC Veteran
SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)

Group: General Forum Members
Points: 244 Visits: 299
Hi, this is initializations:


CREATE TABLE #table1(col1 nvarchar(1), col2 int);

INSERT INTO #table1 VALUES('B','100');
INSERT INTO #table1 VALUES('A','200');
INSERT INTO #table1 VALUES('B','300');
INSERT INTO #table1 VALUES('C','400');



Here is my query:

WITH CTE (col1,col2) as (
SELECT col1, SUM(col2)
FROM #table1
GROUP BY col1
)

SELECT * FROM cte



Here is output:

col1,col2
----------------
A,200
B,400
C,400

Why GROUP BY statement sort my table automatically?
I want to display my table as it is.
Is it possible?

Thank you very much for help.

___________________________________
Computer Enterprise Masoud Keshavarz
I don't care about hell.
If I go there I've played enough Diablo to know how to fight my way out.
ManicStar
ManicStar
Hall of Fame
Hall of Fame (3.6K reputation)Hall of Fame (3.6K reputation)Hall of Fame (3.6K reputation)Hall of Fame (3.6K reputation)Hall of Fame (3.6K reputation)Hall of Fame (3.6K reputation)Hall of Fame (3.6K reputation)Hall of Fame (3.6K reputation)

Group: General Forum Members
Points: 3559 Visits: 3991

CREATE TABLE #table1(col1 nvarchar(1), col2 int, OrderMe int);

INSERT INTO #table1 VALUES('B','100',0);
INSERT INTO #table1 VALUES('A','200',1);
INSERT INTO #table1 VALUES('B','300',0);
INSERT INTO #table1 VALUES('C','400',1);


WITH CTE (col1,col2, OrderMe) as (
SELECT col1, SUM(col2), OrderMe
FROM #table1
GROUP BY col1, OrderMe
)

SELECT col1,Col2 FROM cte
ORDER BY OrderMe



Group by isnt' an ordering function, and if you want a specific order on your table, its best to add an ordering key of some kind.
masoudk1990
masoudk1990
SSC Veteran
SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)

Group: General Forum Members
Points: 244 Visits: 299
Thank you for reply.
My table have key, problem is if I sort my table with key I have to use it in "GROUP BY" and it generate incorrect output.

See this:

CREATE TABLE #table1(ID INT ,col1 nvarchar(1), col2 int);

INSERT INTO #table1 VALUES(1,'B','100');
INSERT INTO #table1 VALUES(2,'A','200');
INSERT INTO #table1 VALUES(3,'B','300');
INSERT INTO #table1 VALUES(4,'C','400');


WITH CTE (ID,col1,col2) as (
SELECT ID ,col1, SUM(col2)
FROM #table1
GROUP BY col1, ID
)

SELECT col1,Col2 FROM cte
ORDER BY ID



Col1,Col2
---------------
B,100
A,200
B,300
C,400

As you see KEY didn’t allowed me to group my data by Col1

___________________________________
Computer Enterprise Masoud Keshavarz
I don't care about hell.
If I go there I've played enough Diablo to know how to fight my way out.
siggemannen
siggemannen
Mr or Mrs. 500
Mr or Mrs. 500 (591 reputation)Mr or Mrs. 500 (591 reputation)Mr or Mrs. 500 (591 reputation)Mr or Mrs. 500 (591 reputation)Mr or Mrs. 500 (591 reputation)Mr or Mrs. 500 (591 reputation)Mr or Mrs. 500 (591 reputation)Mr or Mrs. 500 (591 reputation)

Group: General Forum Members
Points: 591 Visits: 380
Try MIN(ID) in the inner select and it will work i think?
masoudk1990
masoudk1990
SSC Veteran
SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)SSC Veteran (244 reputation)

Group: General Forum Members
Points: 244 Visits: 299
siggemannen (9/14/2013)
Try MIN(ID) in the inner select and it will work i think?


haha yes :-D
Thanks it worked, much appreciated

___________________________________
Computer Enterprise Masoud Keshavarz
I don't care about hell.
If I go there I've played enough Diablo to know how to fight my way out.
Go


Permissions

You can't post new topics.
You can't post topic replies.
You can't post new polls.
You can't post replies to polls.
You can't edit your own topics.
You can't delete your own topics.
You can't edit other topics.
You can't delete other topics.
You can't edit your own posts.
You can't edit other posts.
You can't delete your own posts.
You can't delete other posts.
You can't post events.
You can't edit your own events.
You can't edit other events.
You can't delete your own events.
You can't delete other events.
You can't send private messages.
You can't send emails.
You can read topics.
You can't vote in polls.
You can't upload attachments.
You can download attachments.
You can't post HTML code.
You can't edit HTML code.
You can't post IFCode.
You can't post JavaScript.
You can post emoticons.
You can't post or upload images.

Select a forum

































































































































































SQLServerCentral


Search