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Transforming rows into columns

Hi All,

I'm not sure how best to describe what I'm really looking to do, so
I'll just give you my example and hopefully someone can help.

I have a table that looks similar to this:

Primary Key Field Type Field Value
1234 FName Sally
1234 LName Smith
1234 Phone 555-555-5555
7777 FName John
7777 LName Riley
4444 LName Johnson
4444 Phone 222-234-5555

Which I want to move into a format that looks like this:

Primary Key FName LName Phone
1234 Sally Smith 555-555-5555
7777 John Riley
4444 Johnson 222-234-5555

What is the most efficient way to do this? I'd rather not create a
separate query for each of the field types (there are more than 3 in my
actual situation).

Any help you can offer would be appreciated!


Jul 23 '05 #1
2 1259
INSERT INTO Contacts (primary_key, fname, lname, phone)
SELECT primary_key,
MAX(CASE WHEN field_type = 'fname' THEN field_value END),
MAX(CASE WHEN field_type = 'lname' THEN field_value END),
MAX(CASE WHEN field_type = 'phone' THEN field_value END)
FROM foo
GROUP BY primary_key

David Portas
SQL Server MVP

Jul 23 '05 #2
Thanks, worked like a charm!

Jul 23 '05 #3

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