本文介绍了选择count(*)语句的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

在计算来自mySql数据库的记录数时出现问题:

Having a problem counting number of record from mySql database:

adpter = New MySqlDataAdapter("select count(*) from bookings where busNumber = '" & txtBusNumber.Text & "' and departTime = '" & cmbDepartTime.Text & "' and departDay = '" & cmbDay.Text & "'", con)
        Dim myDataSet = New DataSet
        adpter.Fill(myDataSet, "bookings")


        txtCount.Text = myDataSet.Tables("bookings").Rows(0).Item(0)


我得到0 ...

请帮助


I get 0...

please Help

推荐答案


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08-22 20:44