Which query is faster?

Question

Hi everyone!
I have two query get the same number of records in a table below:
Query 1:
SELECT
FROM
SELECT
SUM(
CASE
WHEN TYPE = '1' THEN Amount
WHEN TYPE = '2' THEN Amount
ELSE 0
END
) Result
FROM
C_BPARTNER
WHERE Result > 0
Query 2:
SELECT
SUM(Amount)
FROM
SELECT
Amount
FROM
C_BPARTNER
WHERE
TYPE = '1'
UNION ALL
SELECT
Amount
FROM
C_BPARTNER
WHERE
TYPE = '2'
I have data in table C_BPARTNER like below:
TYPE Amount
1 100
2 200
3 300
4 400
Can you tell me know which is faster?
Thanks a lot!
Edited by: user12282721 on Nov 24, 2010 7:25 AM
Edited by: user12282721 on Nov 24, 2010 7:27 AM
Edited by: user12282721 on Nov 24, 2010 7:32 AM

Answer 1

user12282721 wrote:
Can you tell me know which is faster?
Sure, you just need to supply your table creation scripts and your data in the form of insert statements and the information requested in these threads -
HOW TO: Post a SQL statement tuning request
HOW TO: Post a SQL statement tuning request - template posting
When your query takes too long
When your query takes too long ...
Alternately you could just run them yourself.