我一直坐在这里与另外五个人一起尝试如何从一列中总计值。我们搜索了谷歌,但没有找到我们找到的代码。使用VB从Access数据库中检索一列工资总和
这里是我的形式:
这里是我迄今为止代码:
Public Class frmTotal
Dim dt As New DataTable()
Dim rowindex As Integer = 0
Dim connstr As String = "provider=microsoft.jet.oledb.4.0;" & "data source=valleyfair.mdb"
Dim sqlstr As String = "select * from employee"
Private Sub btnTotal_Click(sender As System.Object, e As System.EventArgs) Handles btnTotal.Click
End Sub
Private Sub frmTotal_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
dt.Clear()
Dim dataAdapter As New OleDb.OleDbDataAdapter(sqlstr, connstr)
dataAdapter.Fill(dt)
dataAdapter.Dispose()
End Sub
End Class
txtTotalSalary.Text = “SELECT *,从员工SUM(employeeSalary)” 岂不只能将select *,SUM(employeeSalary)从员工添加到文本框? – user2155190 2013-05-08 23:53:00
您的评论与我对您的问题的回答“如何添加一列薪水”无关。你对结果做什么取决于你 – 2013-05-08 23:53:43