Question

我在谷歌上搜索过但没找到正确的答案...... 我正在使用访问数据库在VB.net中计算发票我必须在本月之前和之后获得所有记录喜欢日期＆lt; = 2月，2014我不想要日期选项......

我有两张桌子

客户表

+--------+---------+
| refno  | deposit |
+--------+---------+
| 1/13   |     -10 |
| 10/13  |     500 |
| 100/13 |       0 |
| 101/13 |     250 |
| 102/13 |    1000 |
+--------+---------+

Ledger Table

+--------+----------+------+----------+
| refno  | quantity | rate | recieved |
+--------+----------+------+----------+
| 1/13   |        2 |   70 |        0 |
| 10/13  |        3 |   80 |        0 |
| 100/13 |        0 |    0 |      500 |
| 101/13 |        4 |   60 |        0 |
| 102/13 |       10 |   65 |        0 |
+--------+----------+------+----------+

我想在分类帐中添加客户（存款）（总计）我用过这个查询

"select (sum(l.quantity*l.rate-l.recieved)+first(c.openbal)) as total from customer c RIGHT JOIN ledger l ON l.refno = c.refno having l.refno='" & LV_cinfo.Items(i).Text & "'"

现在我想计算thios总计直到所选月份日期＆lt; = Feb，2014

refno | total = customer.deposit+(ledger.quantity*ledger.rate-ledger.received)
1/13  | -200
10/13 | 4210
100/13| 625
101/13| 280
102/13| 1000

此致

Answer 1

试试这个

SELECT COUNT(<Column Name>) FROM <Table Name> WHERE (Date Between #<From Date># AND #<Till Date>#

Column Name : Primary Key Column Name
Table Name  : Data Table Name
From Date   : Starting Date
Till Date   : Ending Date

MSACCESS我想在特定月份和年份之前计算所有记录

1 个答案: