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[转贴]ado.net数据操作全接触一(insert,update,delete)

2005-04-30 05:44 645 查看
1.1创建数据库连接(sqlserver)

1: <%@ Import Namespace="System.Data" %>

2: <%@ Import NameSpace="System.Data.SqlClient" %>

3: <%

4: Dim myConnection As SqlConnection

5: myConnection = New SqlConnection( "server=localhost;database=Pubs;uid=sa" )

6:

7: myConnection.Open()

8: %>

9: Connection Opened!

1.2创建数据库连接(access)

1: <%@ Import Namespace="System.Data" %>

2: <%@ Import NameSpace="System.Data.OleDb" %>

3: <%

4: Dim myConnection As OleDbConnection

5: myConnection = New OleDbConnection( "PROVIDER=Microsoft.Jet.OLEDB.4.0;DATA
http://aspfree.com/chapters/sams/graphics/ccc.gifSource=c:\authors.mdb" )

6:

7: myConnection.Open()

8: %>

9: Connection Opened!

2.1添加纪录(sqlserver)

1: <%@ Import Namespace="System.Data" %>

2: <%@ Import NameSpace="System.Data.SqlClient" %>

3:

4: <%

5: Dim myConnection As SqlConnection

6: Dim myCommand As SqlCommand

7:

8: myConnection = New SqlConnection( "server=localhost;uid=sa;database=Pubs" )

9: myConnection.Open()

10: myCommand = New SqlCommand( "Insert testTable ( col1 ) http://aspfree.com/chapters/sams/graphics/ccc.gifValues ( 'Hello' )", myConnection )

11: myCommand.ExecuteNonQuery()

12: myConnection.Close()

13: %>

14: New Record Inserted!

15:

2.2添加纪录(access)

1: <%@ Import Namespace="System.Data" %>

2: <%@ Import NameSpace="System.Data.OleDb" %>

3:

4: <%

5: Dim myConnection As OleDbConnection

6: Dim myCommand As OleDbCommand

7:

8: myConnection = New OleDbConnection( "PROVIDER=Microsoft.Jet.OLEDB.4.0;DATA http://aspfree.com/chapters/sams/graphics/ccc.gifSource=c:authors.mdb" )

9: myConnection.Open()

10: myCommand = New OleDbCommand( "Insert INTO Authors ( Author ) Values http://aspfree.com/chapters/sams/graphics/ccc.gif( 'Simpson' )", myConnection )

11: myCommand.ExecuteNonQuery()

12: myConnection.Close()

13: %>

14: New Record Inserted!

15:

3.1更新数据(sqlserver)

1: <%@ Import Namespace="System.Data" %>

2: <%@ Import NameSpace="System.Data.SqlClient" %>

3:

4: <%

5: Dim myConnection As SqlConnection

6: Dim myCommand As SqlCommand

7:

8: myConnection = New SqlConnection( "server=localhost;uid=sa;database=Pubs" )

9: myConnection.Open()

10: myCommand = New SqlCommand( "UPDATE Authors SET LastName='Smith' http://aspfree.com/chapters/sams/graphics/ccc.gifWHERE LastName='Bennett'", myConnection )

11: myCommand.ExecuteNonQuery()

12: myConnection.Close()

13: %>

14: Record Updated!

15:

3.2更新数据(access)

1: <%@ Import Namespace="System.Data" %>

2: <%@ Import NameSpace="System.Data.OleDb" %>

3:

4: <%

5: Dim myConnection As OleDbConnection

6: Dim myCommand As OleDbCommand

7:

8: myConnection = New OleDbConnection( "PROVIDER=Microsoft.Jet.OLEDB.4.0;DATA http://aspfree.com/chapters/sams/graphics/ccc.gifSource=c:\authors.mdb" )

9: myConnection.Open()

10: myCommand = New OleDbCommand( "UPDATE Authors SET Author='Bennett' http://aspfree.com/chapters/sams/graphics/ccc.gifWHERE Author = 'Simpson'", myConnection )

11: myCommand.ExecuteNonQuery()

12: myConnection.Close

13: %>

14: Record Updated!15:

3.3更新数据中受影响的记录数

1: <%@ Import Namespace="System.Data" %>

2: <%@ Import NameSpace="System.Data.SqlClient" %>

3:

4: <%

5: Dim myConnection As SqlConnection

6: Dim myCommand As SqlCommand

7: Dim recordsAffected As Integer

8:

9: myConnection = New SqlConnection( "server=localhost;uid=sa;database=Pubs" )

10: myConnection.Open()

11: myCommand = New SqlCommand( "UPDATE testTable SET col1='hello' http://aspfree.com/chapters/sams/graphics/ccc.gifWHERE col1='fred'", myConnection )

12: recordsAffected = myCommand.ExecuteNonQuery()

13: Response.Write( "The UPDATE statement modified " & http://aspfree.com/chapters/sams/graphics/ccc.gifrecordsAffected.toString() & " records!" )

14: myConnection.Close

15: %>

16:

4.1删除数据(sqlserver)

1: <%@ Import Namespace="System.Data" %>

2: <%@ Import NameSpace="System.Data.SqlClient" %>

3:

4: <%

5: Dim myConnection As SqlConnection

6: Dim myCommand As SqlCommand

7:

8: myConnection = New SqlConnection( "server=localhost;uid=sa;database=Pubs" )

9: myConnection.Open()

10: myCommand = New SqlCommand( "DELETE testTable WHERE col1='fred'", myConnection )

11: myCommand.ExecuteNonQuery()

12: myConnection.Close()

13: %>

14: Record Deleted!

15:

4.2删除数据(access) 1: <%@ Import Namespace="System.Data" %>

2: <%@ Import NameSpace="System.Data.OleDb" %>

3:

4: <%

5: Dim myConnection As OleDbConnection

6: Dim myCommand As OleDbCommand

7:

8: myConnection = New OleDbConnection( "PROVIDER=Microsoft.Jet.OLEDB.4.0;DATA http://aspfree.com/chapters/sams/graphics/ccc.gifSource=c:\authors.mdb" )

9: myConnection.Open()

10: myCommand = New OleDbCommand( "DELETE FROM Authors http://aspfree.com/chapters/sams/graphics/ccc.gifWHERE Author = 'Simpson'", myConnection )

11: myCommand.ExecuteNonQuery()

12: myConnection.Close()

13: %>

14: Record Deleted!

15:

16:4.3删除纪录中受影响的记录数1: <%@ Import Namespace="System.Data" %>

2: <%@ Import NameSpace="System.Data.SqlClient" %> 3: 4: <% 5: Dim myConnection As SQLConnection 6: Dim myCommand As SQLCommand 7: Dim recordsAffected As Integer 8: 9: myConnection = New SqlConnection( "server=localhost;uid=sa;database=Pubs" )10: myConnection.Open()11: myCommand = New SqlCommand( "DELETE Authors2 http://aspfree.com/chapters/sams/graphics/ccc.gifWHERE LastName='Smith'", myConnection )12: recordsAffected = myCommand.ExecuteNonQuery()13: Response.Write( "The DELETE statement modified " http://aspfree.com/chapters/sams/graphics/ccc.gif& recordsAffected.toString() & " records!" )14: myConnection.Close15: %>16:
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