Hi All,
I got the following tables:
table items
+-------------+-------------+------------+-------------+----------+----------------------+----------------------+
| accountcode | invoicecode | invitemqty | packagecode | itemcode |
packagename | packagedesc |
+-------------+-------------+------------+-------------+----------+----------------------+----------------------+
| 103 | 2009011301 | 1 | 1 | 0 |
Closed Trial Package | Closed Trial Package |
| 103 | 2009011301 | 1 | 1 | 0 |
carryover | Previous Balance |
+-------------+-------------+------------+-------------+----------+----------------------+----------------------+
table invoice
+-------------+----------------+--------+-------------+-----------------+---------------+------------+
| accountcode | refno | status | invoicecode | invoicedatefrom
| invoicedateto | billdate |
+-------------+----------------+--------+-------------+-----------------+---------------+------------+
| 103 | 103A2009011301 | unpaid | 2009011301 | 2008-12-13
| 2009-01-12 | 2009-01-13 |
| 103 | 103A2009011301 | unpaid | 2009011301 | 2008-12-08
| 2008-12-13 | 2009-01-13 |
+-------------+----------------+--------+-------------+-----------------+---------------+------------+
select * from invoice join items on invoice.invoicecode =
items.invoicecode where invoice.accountcode='103';
+-------------+----------------+--------+-------------+-----------------+---------------+------------+-------------+-------------+------------+-------------+----------+----------------------+----------------------+
| accountcode | refno | status | invoicecode | invoicedatefrom
| invoicedateto | billdate | accountcode | invoicecode | invitemqty |
packagecode | itemcode | packagename | packagedesc |
+-------------+----------------+--------+-------------+-----------------+---------------+------------+-------------+-------------+------------+-------------+----------+----------------------+----------------------+
| 103 | 103A2009011301 | unpaid | 2009011301 | 2008-12-13
| 2009-01-12 | 2009-01-13 | 103 | 2009011301 | 1 |
1 | 0 | Closed Trial Package | Closed Trial Package |
| 103 | 103A2009011301 | unpaid | 2009011301 | 2008-12-08
| 2008-12-13 | 2009-01-13 | 103 | 2009011301 | 1 |
1 | 0 | Closed Trial Package | Closed Trial Package |
| 103 | 103A2009011301 | unpaid | 2009011301 | 2008-12-13
| 2009-01-12 | 2009-01-13 | 103 | 2009011301 | 1 |
1 | 0 | carryover | Previous Balance |
| 103 | 103A2009011301 | unpaid | 2009011301 | 2008-12-08
| 2008-12-13 | 2009-01-13 | 103 | 2009011301 | 1 |
1 | 0 | carryover | Previous Balance |
+-------------+----------------+--------+-------------+-----------------+---------------+------------+-------------+-------------+------------+-------------+----------+----------------------+----------------------+
what's was my mistake on the join why it resulted to four rows
(duplicate results) ? how can make it that the result is without
duplicate, which in this case should be 2 rows. TIA.
Regards
Ron
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