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我想两个查询结果MySQL查询:我想2个查询结果合并WRT主键
select refno,sum(rate*quantity-recieved) from ledger;
总帐表
+--------+---------------------------------------+
| refno | sum(quantity*rate-recieved) |
+--------+---------------------------------------+
| 1/13 | -190 |
| 10/13 | 3710 |
| 100/13 | 625 |
| 101/13 | 30 |
| 102/13 | 0 |
+--------+---------------------------------------+
和
select deposit from customer;
客户
+--------+---------+
| refno | deposit |
+--------+---------+
| 1/13 | -10 |
| 10/13 | 500 |
| 100/13 | 0 |
| 101/13 | 250 |
| 102/13 | 1000 |
+--------+---------+
将被组合用于该输出;总=(customer.deposit-(ledger.rate * ledger.quantity-ledger.received))
refno | total
1/13 | -200
10/13 | 4210
100/13| 625
101/13| 280
102/13| 1000
你真的有一个表,其中列名是'sum(quantity * rate-received)'? –
@GordonLinoff:当你在MySQL中调用函数并且不给它别名时会发生这种情况。 –
umm ...你是不是错过了第一个查询中的'group by'子句? – Mureinik