php - 如何获取另一个表 MySQL 查询的组头结果

Question

我有两张 table

群组

gid| account         | head
---------------------------------
1  | first cash      | CashinHand
2  | second cash     | CashinHand
3  | third  cash     | CashinHand
4  | office expense  | Expense

反式

tid| particular      | amount
------------------------------
1  | first cash      | 100
2  | office expense  | 300
3  | second cash     | 130
4  | third  cash     | 50
5  | first cash      | 110
6  | office expense  | 750

//我想要报告所有现金。取决于组表头CashinHand 像这样

tid| particular      | amount
------------------------------
1  | first cash      | 100
3  | second cash     | 130
4  | third  cash     | 50
5  | first cash      | 110

Answer 1

您只需JOIN您的两个表并检查给定交易的帐户head是否为CashInHand:

SELECT t.*
FROM trans t
JOIN `group` g ON g.account = t.particular
WHERE g.head = 'CashInHand'

输出:

tid     particular      amount
1       first cash      100
3       second cash     130
4       third cash      50
5       first cash      110

Demo on SQLFiddle