SQL SERVER 和ACCESS的数据导入导出

        //批量导入Access

        string filepath = Server.MapPath("student.mdb");

        string connaccess = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source='" + filepath + "'";
        string access = "select * from [student]";
        OleDbConnection oconn = new OleDbConnection(connaccess);
        oconn.Open();
        OleDbDataAdapter myCommand = new OleDbDataAdapter(access, oconn);
        DataSet ds = new DataSet();
        myCommand.Fill(ds, "xxx");
        oconn.Close();
        foreach (DataRow dr in ds.Tables["xxx"].Rows)
        {
            string xx1 = dr["xx1"].ToString().Replace(" ","");
            string xx2= dr["xx2"].ToString();
            string xx3= dr["xx3"].ToString();
            string xx4= dr["xx4"].ToString();
            string xx5= dr["xx5"].ToString();
            DateTime xx6= DateTime.Parse(dr["xx6"].ToString());
            string xx7= dr["xx7"].ToString();
            DateTime xx8= DateTime.Parse(dr["xx8"].ToString());
            string xx9= "";
            string xx10= "-";
            string xx11= "-";
            string xx12= "-";
            string xx13= "-";
            string xx14= "-";
            string xx15= "-";
            DateTime straddtime = DateTime.Now;
            try
            {
                string strconn = "server=xx;database=xx;uid=xx;pwd=xx;";
                string strSQL = "insert into cha_info(xx1,xx2,xx3,xx4,xx5,xx6,xx7,xx8,xx9,xx10,xx11,xx12,xx13,xx14,xx15,时间) select '" + xx1+ "','" + xx2+ "','" + xx3+ "','" + xx4+ "','" + xx5+ "','" + xx6+ "','" + xx7+ "','" + xx8+ "','" + xx9+ "','" + xx10+ "','" + xx11+ "','" + xx12+ "','" + xx13+ "','" + xx14+ "','" + xx15+ "','" + straddtime + "' where '" + xx2+ "' not in (select xx2 from 要插入的表)  ";
//where '" + xx2+ "' not in (select xx2 from 要插入的表)判断是否有重复
                SqlConnection conn = new SqlConnection(strconn);
                SqlCommand cmd = new SqlCommand(strSQL, conn);
                conn.Open();
                i = cmd.ExecuteNonQuery();
                conn.Close();
 
            }
            catch (Exception ex)
            {
                throw ex;
            }
常规的数据导入导出:

使用DTS向导迁移你的Access数据到SQL Server,你可以使用这些步骤: 

  1在SQL SERVER企业管理器中的Tools(工具)菜单上,选择Data Transformation 

  2Services(数据转换服务),然后选择  czdImport Data(导入数据)。 

  3在Choose a Data Source(选择数据源)对话框中选择Microsoft Access as the Source,然后键入你的.mdb数据库(.mdb文件扩展名)的文件名或通过浏览寻找该文件。 

  4在Choose a Destination(选择目标)对话框中,选择Microsoft OLE DB Prov ider for SQL Server,选择数据库服务器,然后单击必要的验证方式。 

  5在Specify Table Copy(指定表格复制)或Query(查询)对话框中,单击Copy tables(复制表格)。 

6在Select Source Tables(选择源表格)对话框中,单击Select All(全部选定)。下一步,完成。



Transact-SQL语句进行导入导出:

1.         在SQL SERVER里查询access数据:

-- ======================================================

SELECT * 

FROM OpenDataSource( "Microsoft.Jet.OLEDB.4.0",

"Data Source="c:\DB.mdb";User ID=Admin;Password=")...表名

-------------------------------------------------------------------------------------------------



2.         将access导入SQL server 

-- ======================================================

在SQL SERVER 里运行:

SELECT *

INTO newtable

FROM OPENDATASOURCE ("Microsoft.Jet.OLEDB.4.0", 

      "Data Source="c:\DB.mdb";User ID=Admin;Password=" )...表名

-------------------------------------------------------------------------------------------------



3.         将SQL SERVER表里的数据插入到Access表中

-- ======================================================

在SQL SERVER 里运行:

insert into OpenDataSource( "Microsoft.Jet.OLEDB.4.0",

  "Data Source=" c:\DB.mdb";User ID=Admin;Password=")...表名 

(列名1,列名2)

select 列名1,列名2  from  sql表

实例:

insert into  OPENROWSET("Microsoft.Jet.OLEDB.4.0", 

   "C:\db.mdb";"admin";"", Test) 

select id,name from Test


INSERT INTO OPENROWSET("Microsoft.Jet.OLEDB.4.0", "c:\trade.mdb"; "admin"; "", 表名)

SELECT *

FROM sqltablename

-------------------------------------------------------------------------------------------------

二、           SQL SERVER 和EXCEL的数据导入导出


1、在SQL SERVER里查询Excel数据:

-- ======================================================

SELECT * 

FROM OpenDataSource( "Microsoft.Jet.OLEDB.4.0",

"Data Source="c:\book1.xls";User ID=Admin;Password=;Extended properties=Excel 5.0")...[Sheet1$]



下面是个查询的示例,它通过用于 Jet 的 OLE DB 提供程序查询 Excel 电子表格。

SELECT * 
FROM OpenDataSource ( "Microsoft.Jet.OLEDB.4.0",
  "Data Source="c:\Finance\account.xls";User ID=Admin;Password=;Extended properties=Excel 5.0")...xactions
-------------------------------------------------------------------------------------------------


2、将Excel的数据导入SQL server :

-- ======================================================

SELECT * into newtable

FROM OpenDataSource( "Microsoft.Jet.OLEDB.4.0",

  "Data Source="c:\book1.xls";User ID=Admin;Password=;Extended properties=Excel 5.0")...[Sheet1$]


实例:

SELECT * into newtable

FROM OpenDataSource( "Microsoft.Jet.OLEDB.4.0",

  "Data Source="c:\Finance\account.xls";User ID=Admin;Password=;Extended properties=Excel 5.0")...xactions

-------------------------------------------------------------------------------------------------

3、将SQL SERVER中查询到的数据导成一个Excel文件

-- ======================================================

T-SQL代码:

EXEC master..xp_cmdshell "bcp 库名.dbo.表名out c:\Temp.xls -c -q -S"servername" -U"sa" -P"""

参数:S 是SQL服务器名;U是用户;P是密码

说明:还可以导出文本文件等多种格式



实例:EXEC master..xp_cmdshell "bcp saletesttmp.dbo.CusAccount out c:\temp1.xls -c -q -S"pmserver" -U"sa" -P"sa""


EXEC master..xp_cmdshell "bcp "SELECT au_fname, au_lname FROM pubs..authors ORDER BY au_lname" queryout C:\ authors.xls -c -Sservername -Usa -Ppassword"


在VB6中应用ADO导出EXCEL文件代码: 

Dim cn  As New ADODB.Connection

cn.open "Driver={SQL Server};Server=WEBSVR;DataBase=WebMis;UID=sa;WD=123;"

cn.execute "master..xp_cmdshell "bcp "SELECT col1, col2 FROM 库名.dbo.表名" queryout E:\DT.xls -c -Sservername -Usa -Ppassword""

-------------------------------------------------------------------------------------------------

4、在SQL SERVER里往Excel插入数据:

-- ======================================================

insert into OpenDataSource( "Microsoft.Jet.OLEDB.4.0",

"Data Source="c:\Temp.xls";User ID=Admin;Password=;Extended properties=Excel 5.0")...table1 (A1,A2,A3) values (1,2,3)

T-SQL代码:

INSERT INTO  

OPENDATASOURCE("Microsoft.JET.OLEDB.4.0",  

"Extended Properties=Excel 8.0;Data source=C:\training\inventur.xls")...[Filiale1$]  

(bestand, produkt) VALUES (20, "Test")  

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