Question

Possible Duplicate:
T-SQL Group Rows Into Columns

I have a table _data that is formatted like this

TimeStamp                        MeterID      Value
2012-04-15 13:00:00.000          CK1992       152.64
2012-04-15 12:45:00.000          CK1992       151.695
2012-07-06 12:45:00.000          CK1992       150.84
2012-09-04 12:00:00.000          CK1992       150.66
2012-04-15 12:15:00.000          CK1992       150.57

I need to be able to format that table as something like this

Timestamp     MeterID1     MeterID2     MeterID3
stamphere     value        value        value

I have a lot of different MeterIDs so it needs extract it accordingly.

Here is my existing select statement:

SELECT [TimeStamp]
  ,[MeterID]
  ,[Value]
FROM [dbo].[_Data]

How can I make this work? Thanks for your help!

Answer 1

You might check the information in SQL Server dynamic PIVOT query? since you don’t know how many columns you will have.

Also, you can potentially use PIVOT as it was introduced in SQL Server 2005:

When PIVOT and UNPIVOT are used against databases that are upgraded to SQL Server 2005 or later, the compatibility level of the database must be set to 90 or higher. For information about how to set the database compatibility level, see sp_dbcmptlevel (Transact-SQL) – MSDN