Transform data into column

Question

Transform data into column

mzsleo85

Valued Member

Points: 72
More actions
January 8, 2014 at 9:30 am

#286940

Hi All,
May any one help me in query for the below scenerio :
I have data like this in the table :
IntRecpieID strName intMealtypeID Total
100 ‘A’ 1 20
101 'B' 2 30
100 'A' 3 40
Desired Output required:
IntRecpieID StrName 1 2 3
100 'A' 20 Null 40
101 'B' Null 30 Null
I would be very greatfull to you.
Thanks in Advance

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Sean Lange SSC Guru Points: 286590 More actions · Answer 1

Hi and welcome to the forums. It is considered best practice to post ddl and sample data so that we can work directly on your problem. Since this is your very first post I created it for you this time so you can what I mean. You can read more about best practices by following the link in my signature.

Here is an example of what you should include in your future posts.

create table #Something

(

IntRecpieID int,

strName char(1),

intMealtypeID int,

Total int

)

insert #Something

select 100, 'A', 1, 20 union all

select 101, 'B', 2, 30 union all

select 100, 'A', 3, 40

drop table #Something

The challenge you are facing is best handled using a cross tab. This is very common and is pretty simple to deal with. There are two types of cross tabs, static and dynamic. Based on your sample data you might be able to use the static version.

Here is how you could do the static version.

select IntRecpieID, strName,

MAX(case when intMealtypeID = 1 then Total end) as Total1,

MAX(case when intMealtypeID = 2 then Total end) as Total2,

MAX(case when intMealtypeID = 3 then Total end) as Total3

from #Something

group by IntRecpieID, strName

You can read more about cross tabs by following the links in my signature. Hope this works for you.

_______________________________________________________________

Need help? Help us help you.

Read the article at http://www.sqlservercentral.com/articles/Best+Practices/61537/ for best practices on asking questions.

Need to split a string? Try Jeff Modens splitter http://www.sqlservercentral.com/articles/Tally+Table/72993/.

Cross Tabs and Pivots, Part 1 – Converting Rows to Columns - http://www.sqlservercentral.com/articles/T-SQL/63681/
Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs - http://www.sqlservercentral.com/articles/Crosstab/65048/
Understanding and Using APPLY (Part 1) - http://www.sqlservercentral.com/articles/APPLY/69953/
Understanding and Using APPLY (Part 2) - http://www.sqlservercentral.com/articles/APPLY/69954/

mzsleo85 Valued Member Points: 72 More actions · Answer 2

Thank You Sean for your nice suggestions and help.

The solution which you provided me is working to me. (Thanks a lot)

I ll keep in mind all the points that were mentioned by you in future.

Thanks

Sean Lange SSC Guru Points: 286590 More actions · Answer 3

mzsleo85 (1/8/2014)
Thank You Sean for your nice suggestions and help.
The solution which you provided me is working to me. (Thanks a lot)
I ll keep in mind all the points that were mentioned by you in future.
Thanks

Awesome! Glad that worked you and thanks for letting me know.

_______________________________________________________________

Need help? Help us help you.

Read the article at http://www.sqlservercentral.com/articles/Best+Practices/61537/ for best practices on asking questions.

Need to split a string? Try Jeff Modens splitter http://www.sqlservercentral.com/articles/Tally+Table/72993/.

Cross Tabs and Pivots, Part 1 – Converting Rows to Columns - http://www.sqlservercentral.com/articles/T-SQL/63681/
Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs - http://www.sqlservercentral.com/articles/Crosstab/65048/
Understanding and Using APPLY (Part 1) - http://www.sqlservercentral.com/articles/APPLY/69953/
Understanding and Using APPLY (Part 2) - http://www.sqlservercentral.com/articles/APPLY/69954/

RKaram SSCommitted Points: 1518 More actions · Answer 4

WHY U DONT USE THE PIVOT/UNPIVOT STATEMENTS TO TRANSFORM COLUMN DATA INTO MANY COLUMNS??

rkaram

Sean Lange SSC Guru Points: 286590 More actions · Answer 5

rabih_karam (1/16/2014)
WHY U DONT USE THE PIVOT/UNPIVOT STATEMENTS TO TRANSFORM COLUMN DATA INTO MANY COLUMNS??

Posting in call caps is considered yelling. No need to yell, we are all friends around here.

The PIVOT statement would work for this also. However, it generally will not perform as well as a cross tab. Additionally, at least for me, they are a lot easier to read and understand.

Take a look at the articles referenced in my signature about cross tabs. As always, Jeff Moden does an amazing job demonstrating various methods for this type of thing along with performance tests.

_______________________________________________________________

Need help? Help us help you.

Read the article at http://www.sqlservercentral.com/articles/Best+Practices/61537/ for best practices on asking questions.

Need to split a string? Try Jeff Modens splitter http://www.sqlservercentral.com/articles/Tally+Table/72993/.

Cross Tabs and Pivots, Part 1 – Converting Rows to Columns - http://www.sqlservercentral.com/articles/T-SQL/63681/
Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs - http://www.sqlservercentral.com/articles/Crosstab/65048/
Understanding and Using APPLY (Part 1) - http://www.sqlservercentral.com/articles/APPLY/69953/
Understanding and Using APPLY (Part 2) - http://www.sqlservercentral.com/articles/APPLY/69954/