Question

VB中怎么对数据库进行添加删除修改的操作

我用的是DATA控件我已经把VB和ACCESS 2000连接上了，VB也能正常访问到数据了
我希望可以加几的按钮，拥有添加，删除，修改，查询的功能（相关的数据改动就在原本浏览数据的TEXT中录入就行了）

Answer 1

Private Sub Command1_Click()
For i = 0 To 5
Text1(i).Text = ""
Next i
Adodc1.RecordSource = "select * from " & s1 & " order by 编号"
Adodc1.Refresh
If Adodc1.Recordset.RecordCount > 0 Then
Adodc1.Recordset.MoveLast
Text1(0).Text = "G" + Format((Val(Right(Trim(Adodc1.Recordset.Fields("编号")), 4)) + 1), "0000")
Else
Text1(0).Text = "G0001"
End If
End Sub
Private Sub Command2_Click()
If Adodc1.Recordset.EOF = False Then
c = MsgBox("您确认要删除该记录吗？", vbOKCancel, "删除提示信息")
If c = vbOK Then
Adodc1.Recordset.Delete
Adodc1.RecordSource = "select * from 人员表"
Adodc1.Refresh
End If
Else
MsgBox "当前数据库中没有可删除的数据记录", vbOKOnly, "提示信息"
End If
End Sub
Private Sub Command3_Click()
If Text1(0).Text = "" Or Text1(1).Text = "" Then
MsgBox "请选择需要改动的记录信息！", vbOKOnly, "错误提示"
Else
c = MsgBox("确定要修改该记录吗？", vbOKCancel, "提示信息")
If c = vbOK Then '如果确认修改的话进行修改操作
If Text1(1).Text = "" Then
MsgBox "姓名不能为空值!", 48, "修改信息提示"
Else
'连接所要修改的数据库
con.Open "Provider=SQLOLEDB.1;Password=2752;Persist Security Info=True;User ID=sa;Initial Catalog=sample;Data Source=JAMLEEPC"
'开始修改数据库
con.Execute ("UPDATE " & s1 & " SET 姓名='" & Text1(1).Text & "',年龄=" & Text1(2).Text & ",学历='" & Text1(3).Text & "',年级=" & Text1(4).Text & ", 入学时间='" & Text1(5).Text & "' where 编号='" & Trim(Text1(0)) & "'")
MsgBox "信息修改成功", 64, "修改信息提示"
con.Close
Adodc1.RecordSource = "select * from 人员表"
Adodc1.Refresh
End If
End If
End If
End Sub
Private Sub Command4_Click()
Adodc1.RecordSource = "select * from 人员表 where 编号='" + Text1(0).Text + "'"
Adodc1.Refresh
If Adodc1.Recordset.RecordCount > 0 Then
MsgBox "该信息已存在，信息保存不成功", 64, "保存信息提示"
Else
cc = MsgBox("您确定要保存该信息吗？", 33, "信息保存提示")
If cc = vbOK Then
If Text1(1).Text = "" Or Text1(2).Text = "" Or Text1(3).Text = "" Or Text1(4).Text = "" Or Text1(5).Text = "" Then
MsgBox "请确认，人员的姓名、年龄、学历、年级和入学时间不能为空", 48, "保存信息提示"
Else
con.Open "Provider=SQLOLEDB.1;Password=2752;Persist Security Info=True;User ID=sa;Initial Catalog=sample;Data Source=JAMLEEPC"
con.Execute ("insert into 人员表 values('" & Text1(0).Text & "','" & Text1(1).Text & "','" & Text1(2).Text & "','" & Text1(3).Text & "','" & Text1(4).Text & "', '" & Text1(5).Text & "')")
MsgBox "信息修改成功", 64, "修改信息提示"
con.Close
Adodc1.RecordSource = "select * from 人员表"
Adodc1.Refresh
End If
Else
End If
End If
Set DataGrid1.DataSource = Adodc1
End Sub
给你段代码参考下，这个就是添加，删除，修改的代码。不过我用的是SQL2000你要吧代码稍微修改一下的，呵呵，祝你成功！

Answer 2

建议使用dao连接数据库，可以直接用recordset对象和sql语句进行你需要的功能

Answer 3

你既然用了DATA控件，那么你就已经引用了DAO库，那就直接使用它提供的RecordSet对象来访问数据库就可以了。

Data控件带有一个RecordSet属性的，通过它就可以直接访问数据库了。
比如你的Data控件名叫data1，那么你就可以通过
data1.Recordset.AddNew 来向数据库中添加一个新项目。

MSDN上面写的很详细，自己看看。

Answer 4

先用DATA连接数据库MDB
data1.recordset.delete 删除
data1.recordset.edit 编辑
data1.recordset.addnew 增加
data1.recordset.update 刷新

Answer 5

下面的例子就是对数据库进行添加删除修改的操作：
Private Sub Command1_Click()
For i = 0 To 5
Text1(i).Text = ""
Next i
Adodc1.RecordSource = "select * from " & s1 & " order by 编号"
Adodc1.Refresh
If Adodc1.Recordset.RecordCount > 0 Then
Adodc1.Recordset.MoveLast
Text1(0).Text = "G" + Format((Val(Right(Trim(Adodc1.Recordset.Fields("编号")), 4)) + 1), "0000")
Else
Text1(0).Text = "G0001"
End If
End Sub
Private Sub Command2_Click()
If Adodc1.Recordset.EOF = False Then
c = MsgBox("您确认要删除该记录吗？", vbOKCancel, "删除提示信息")
If c = vbOK Then
Adodc1.Recordset.Delete
Adodc1.RecordSource = "select * from 人员表"
Adodc1.Refresh
End If
Else
MsgBox "当前数据库中没有可删除的数据记录", vbOKOnly, "提示信息"
End If
End Sub
Private Sub Command3_Click()
If Text1(0).Text = "" Or Text1(1).Text = "" Then
MsgBox "请选择需要改动的记录信息！", vbOKOnly, "错误提示"
Else
c = MsgBox("确定要修改该记录吗？", vbOKCancel, "提示信息")
If c = vbOK Then '如果确认修改的话进行修改操作
If Text1(1).Text = "" Then
MsgBox "姓名不能为空值!", 48, "修改****"
Else
'连接所要修改的数据库
con.Open "Provider=SQLOLEDB.1;Password=2752;Persist Security Info=True;User ID=sa;Initial Catalog=sample;Data Source=JAMLEEPC"
'开始修改数据库
con.Execute ("UPDATE " & s1 & " SET 姓名='" & Text1(1).Text & "',年龄=" & Text1(2).Text & ",学历='" & Text1(3).Text & "',年级=" & Text1(4).Text & ", 入学时间='" & Text1(5).Text & "' where 编号='" & Trim(Text1(0)) & "'")
MsgBox "信息修改成功", 64, "修改****"
con.Close
Adodc1.RecordSource = "select * from 人员表"
Adodc1.Refresh
End If
End If
End If
End Sub
Private Sub Command4_Click()
Adodc1.RecordSource = "select * from 人员表 where 编号='" + Text1(0).Text + "'"
Adodc1.Refresh
If Adodc1.Recordset.RecordCount > 0 Then
MsgBox "该信息已存在，信息保存不成功", 64, "保存****"
Else
cc = MsgBox("您确定要保存该信息吗？", 33, "信息保存提示")
If cc = vbOK Then
If Text1(1).Text = "" Or Text1(2).Text = "" Or Text1(3).Text = "" Or Text1(4).Text = "" Or Text1(5).Text = "" Then
MsgBox "请确认，人员的姓名、年龄、学历、年级和入学时间不能为空", 48, "保存****"
Else
con.Open "Provider=SQLOLEDB.1;Password=2752;Persist Security Info=True;User ID=sa;Initial Catalog=sample;Data Source=JAMLEEPC"
con.Execute ("insert into 人员表 values('" & Text1(0).Text & "','" & Text1(1).Text & "','" & Text1(2).Text & "','" & Text1(3).Text & "','" & Text1(4).Text & "', '" & Text1(5).Text & "')")
MsgBox "信息修改成功", 64, "修改****"
con.Close
Adodc1.RecordSource = "select * from 人员表"
Adodc1.Refresh
End If
Else
End If
End If
Set DataGrid1.DataSource = Adodc1
End Sub