How can I turn a bunch of rows into aggregated columns WITHOUT using pivot in SQL Server 2005?

Posted by cdeszaq on Stack Overflow See other posts from Stack Overflow or by cdeszaq
Published on 2010-04-27T16:46:39Z Indexed on 2010/04/27 16:53 UTC
Read the original article Hit count: 320

Filed under:
|
|
|

Here is the scenario: I have a table that records the user_id, the module_id, and the date/time the module was viewed.

eg.

Table: Log
------------------------------
User_ID  Module_ID   Date
------------------------------
1       red         2001-01-01
1       green       2001-01-02
1       blue        2001-01-03
2       green       2001-01-04
2       blue        2001-01-05
1       red         2001-01-06
1       blue        2001-01-07
3       blue        2001-01-08
3       green       2001-01-09
3       red         2001-01-10
3       green       2001-01-11
4       white       2001-01-12

I need to get a result set that has the user_id as the 1st column, and then a column for each module. The row data is then the user_id and the count of the number of times that user viewed each module.

eg.

---------------------------------
User_ID  red green   blue    white
---------------------------------
1       2   1       2       0
2       0   1       1       0
3       1   2       1       0
4       0   0       0       1

I was initially thinking that I could do this with PIVOT, but no dice; the database is a converted SQL Server 2000 DB that is running in SQL Server 2005. I'm not able to change the compatibility level, so pivot is out.

How can I accomplish this?

© Stack Overflow or respective owner

Related posts about sql

Related posts about sql-server