Rahat Bashir schrieb:
Hi Experts,
EID Mubarak to all.
I need your help on writing a MySQL query.
Scenario:
CREATE TABLE transaction
(
`id` int NOT NULL ATUTO INCREMENT,
`date` datetime NOT NULL,
`withdrawn` double (12,2) NULL,
`deposit` double (12,2) NULL
);
SELECT * FROM transaction;
id date
withdrawn deposit
----- -----------------------------
--------------- --------------
1 2008-12-01 00:00:00
NULL 10000.00
2 2008-12-02 00:00:00 4000.00
NULL
3 2008-12-04 00:00:00 2000.00
NULL
4 2008-12-05 00:00:00
NULL 4500.00
5 2008-12-06 00:00:00 500.00
1500.00
The above is all I have. I want to make query which should output an extra
calculated column named "balance", something like following:
Expected output from query:
id date
withdrawn deposit balance
----- -----------------------------
--------------- -------------- -------------
1 2008-12-01 00:00:00
NULL 10000.00 10000.00
2 2008-12-02 00:00:00 4000.00
NULL 6000.00
3 2008-12-04 00:00:00 2000.00
NULL 4000.00
4 2008-12-05 00:00:00
NULL 4500.00 8500.00
5 2008-12-06 00:00:00 500.00
1500.00 9500.00
Thanks in advance
Hi Rahat,
you can see more information about MySQL on www.mysql.com and show how
to build/make Queries well.
Regards
Carlos Medina
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