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3 Table Query
Posted by: Larry Regencia
Date: July 11, 2005 02:13AM

hello guys,

honestly, i don't know if I'm on the right section of forums since my questions are about queries. but please let me know if i am in the wrong section.

i would like to ask if you have any idea how should i do this query.. the scenario is like this: Table A, Table B, Table C.

Table A and Table B have common fields let say [accountcode], [transactioncode]
And these two tables are details of Table C which has also the field [accountcode]

What I wanted to retrieve from those tables A and B are data which match to Table C based on [accountcode], regardless they have a null value or not.

--------------------A -------------------------------- B -------------------------------- C
Tcode--ACode --Amount** Tcode--ACode--Amount ** AccountCode
1 --100 -- 100.00 ** 0 -- 100 -- 2100.00 ** 100
1 --101 -- 130.00 ** 0 -- 101 -- 4100.00 ** 101
1 --102 -- 150.00 ** 0 -- 102 -- 1100.00 ** 102
0 --103 -- 160.00 ** 1 -- 103 -- 3100.00 ** 103
0 --104 -- 200.00 ** 1 -- 104 -- 4100.00 ** 104
0 --105 -- 300.00 ** 1 -- 105 -- 5100.00 ** 105


Results if Transaction Code is 0:
Filter out transactioncode = 0
--------------------A -------------------------------- B -------------------------------- C
Tcode--ACode --Amount** Tcode--ACode--Amount ** AccountCode
NULL --100 -- NULL ** 0 -- 100 -- 2100.00 ** 100
NULL --101 -- NULL ** 0 -- 101 -- 4100.00 ** 101
NULL --102 -- NULL ** 0 -- 102 -- 1100.00 ** 102
0 --103 -- 160.00 ** NULL -- 103 -- NULL ** 103
0 --104 -- 200.00 ** NULL -- 104 -- NULL ** 104
0 --105 -- 300.00 ** NULL -- 105 -- NULL ** 105



please let me know if you have any ideas.. thanks in advance.

larry vincent

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