vb读取access并且显示

你一个示例,这个是用户登录系统

'准备工作: 数据库D:\Mydb.mdb 数据库中,建数据表:UserInfo,数据表中,建字段:User,Password,并添加一条记录

'点工程->引用选中Microsoft Activex Data Objects 2.1 Library

'控件:添加一个文本框,一个命令按钮

Private Sub Command1_Click()

Dim s As String

Dim Conn As New ADODB.Connection

Dim Rs As New ADODB.Recordset

Conn.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\mydb.mdb" '请将数据库名及路径换成你的实际数据库名及路径

Dim UserName As String

Dim Password As String

s = Text1.Text

If s = "1" Or s = "2" Then

UserName = InputBox("请输入用户名")

Password = InputBox("请输入用户密码")

sql = "Select * From [UserInfo] where User='" & UserName & "'"

'UserInfo请换成你的实际数据表名

Rs.Open sql, Conn, 1, 3

If Rs.EOF Then

MsgBox "没有找到此用户"

Else

If Rs("Password") = Password Then

If s = "1" Then

MsgBox "123"

ElseIf s = "2" Then

MsgBox "456"

End If

Else

MsgBox "密码错误"

End If

End If

End If

End Sub

上面的例子实现了查询

如果是要添加,删除,更新等操作,只要编写相应的SQL语句,再用

Conn.Execute SQL 就可以了,如:

添加的:

SQL="Insert Into [UserInfo](User,Password) Values('aaaa','1234')"

Conn.Execute SQL '执行后,就添加了一条记录

删除:

SQL="Delete From [UserInfo] Where User='aaaa'"

Conn.Execute SQL '删除用户名为aaaa的用户记录

更新:

SQL="Update [UserInfo] Set Password='abcdefg' Where User='aaaa'" Conn.Execute SQL '执行后,修改用户aaaa的密码为abcdefg

以上只是示例,在实际使用过程中,可以将一些内容用控件输入等方式进行,这样就有很大的灵活性了

动态创建数据库

引用microsoft DAP 3.6 Object Library

Dim myDB As DAO.Database

Set myDB = CreateDatabase(App.Path + "\111.mdb", dbLangGeneral) '如果不存在数据库

Set myDB = OpenDatabase(App.Path + "\111.mdb") '如果存在数据库

Dim str_SQL As String

str_SQL = "Create Table NewTable1(Field1 Text(10),Field2 Short)"

myDB.Execute str_SQL

str_SQL = "Create Table NewTable2(Field1 Text(10),Field2 Short)"

myDB.Execute str_SQL

myDB.Close

向已经建好的数据库中添加记录

建立数据库a，表名字b,字段c，文本格式,在窗体上画一command ,画一个文本框，这个代码就是将文本内容写入数据库

要先引用microsoft activeX data object 2.5 library

代码如下：

Private Sub Command1_Click()

Dim cnDk As New ADODB.Connection

Dim strDk As String

Dim rDk As New ADODB.Recordset

Dim sql As String

strDk = "DBQ=" & App.Path & "\a.mdb;Driver=;"

cnDk.Open strDk

sql = "insert into b (c) values ('" & text1.text& "')"

cnDk.Execute sql

cnDk.Close

Set cnDk = Nothing

End Sub

在数据库中添加多条记录

只要可以进行输入文本的都可以

改一下这些吧，你单击一次就提示输入一次，输完了自动保存

改后

Data1.Recordset.AddNew

Data1.Recordset.Fields("username") = trim(inputbox("请输入名字"))

Data1.Recordset("password") =val(trim(inputbox("请输入电话")))

Data1.UpdateRecord ——————————————————————————————

Data1.Recordset.AddNew

Data1.Recordset.Fields("username") = "张三|"

Data1.Recordset("password") = "fsdfsd"

Data1.UpdateRecord

Data1.Recordset.AddNew

Data1.Recordset.Fields("username") = "李四|"

Data1.Recordset("password") = "fsdf432d"

Data1.UpdateRecord

Data1.Recordset.AddNew

Data1.Recordset.Fields("username") = "王五|"

Data1.Recordset("password") = "f42342d"

Data1.UpdateRecord

MsgBox "adad"

=========================================================== =============================

vb+access 数据库的记录的添加与删除

Dim cn As New ADODB.Connection

Dim rs As New ADODB.Recordset

Private Sub Command2_Click()

Set rs = cn.Execute("select * from wenzhang where 内容='" & Text1.Text & "'") If Text1.Text = "" Then

MsgBox ("文章不能为空！")

ElseIf rs.EOF = False Then

MsgBox ("文章不能重复！")

Else