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MySQL Join in select

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I have two tables:
LOANS: loan_serial, customer_id, loan_amount, cheque_no1, cheque_no2, cheque_no3, period
STATEMENT: customer_id, cheque_no, amount.

A customer can be paid three times. for each payment, a record is added in STATEMENT and either cheque_no1, cheque_no2 or cheque_no3 updated with the value in STATEMENT.chequ e_no in the new record.

How can i get loan_serial, customer_id, and the total amount paid for each loan in mysql

i.e. something close to
SELECT LOANS.loan_seri al, LOANS.customer_ id, SUM(SELECT STATEMENT.amoun t FROM STATEMENT, LOANS WHERE STATEMENT.chequ e_no=LOANS.cheq ue_no1 OR STATEMENT.chequ e_no=LOANS.cheq ue_no2 OR STATEMENT.chequ e_no=LOANS.cheq ue_no3)
Sep 28 '06 #1
1 2830
5 New Member
SELECT a.loan_serial, a.customer_id, SUM(amount) AS total_amount
WHERE a.customer_id = b.customer_id
GROUP BY a.loan_serial, a.customer_id
Oct 6 '06 #2

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