xls文件里面有大约10万条数据,现需要导入到SQL里面,以下是我写的代码不过有错误。还有有没有效率更高的方法?
OleDbDataAdapter dpSqlServer = new OleDbDataAdapter("select * from ttttt", "Provider=SQLOLEDB;server=(local);database=database;uid=sa;pwd=sa");
DataSet dsSqlServer = new DataSet();
dpSqlServer.Fill(dsSqlServer); DataSet dsAccess = new DataSet();
OleDbDataAdapter dpAccess = new OleDbDataAdapter("select * from Sheet1$]", ("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=c:\aa.xls;Extended Properties='Excel 8.0;HDR=YES;IMEX=1'"));
dpAccess.Fill(dsAccess); dsSqlServer = dsAccess; for (int j = 0; j < dsAccess.Tables[0].Rows.Count; j++)
{
dpSqlServer.Tables[0].Rows[j].SetAdded(); }
try
{
OleDbCommandBuilder cbSqlServer = new OleDbCommandBuilder(dpSqlServer); //导入数据
dpSqlServer.Update(dsSqlServer); }
catch
{
}
OleDbDataAdapter dpSqlServer = new OleDbDataAdapter("select * from ttttt", "Provider=SQLOLEDB;server=(local);database=database;uid=sa;pwd=sa");
DataSet dsSqlServer = new DataSet();
dpSqlServer.Fill(dsSqlServer); DataSet dsAccess = new DataSet();
OleDbDataAdapter dpAccess = new OleDbDataAdapter("select * from Sheet1$]", ("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=c:\aa.xls;Extended Properties='Excel 8.0;HDR=YES;IMEX=1'"));
dpAccess.Fill(dsAccess); dsSqlServer = dsAccess; for (int j = 0; j < dsAccess.Tables[0].Rows.Count; j++)
{
dpSqlServer.Tables[0].Rows[j].SetAdded(); }
try
{
OleDbCommandBuilder cbSqlServer = new OleDbCommandBuilder(dpSqlServer); //导入数据
dpSqlServer.Update(dsSqlServer); }
catch
{
}
/// Excel 导入到数据库
/// </summary>
/// <param name="excelFile"></param>
/// <param name="sheetName"></param>
/// <param name="tableName"></param>
/// <param name="connectionString"></param>
public static void TransferData(string excelFile, string sheetName, string tableName, string connectionString)
{
DataSet ds = new DataSet();
try
{
//获取全部数据
string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + excelFile + ";" + "Extended Properties=Excel 8.0;";
OleDbConnection conn = new OleDbConnection(strConn);
conn.Open();
string strExcel = "";
OleDbDataAdapter myCommand = null;
strExcel = string.Format("select * from [{0}$]", sheetName);
myCommand = new OleDbDataAdapter(strExcel, strConn);
myCommand.Fill(ds, sheetName); //如果目标表不存在则创建
string strSql = string.Format("if object_id('{0}') is null create table {0}(", tableName);
foreach (System.Data.DataColumn c in ds.Tables[0].Columns)
{
strSql += string.Format("[{0}] varchar(255),", c.ColumnName);
}
strSql = strSql.Trim(',') + ")"; using (System.Data.SqlClient.SqlConnection sqlconn = new System.Data.SqlClient.SqlConnection(connectionString))
{
sqlconn.Open();
System.Data.SqlClient.SqlCommand command = sqlconn.CreateCommand();
command.CommandText = strSql;
command.ExecuteNonQuery();
sqlconn.Close();
}
//用bcp导入数据
using (System.Data.SqlClient.SqlBulkCopy bcp = new System.Data.SqlClient.SqlBulkCopy(connectionString))
{
bcp.SqlRowsCopied += new System.Data.SqlClient.SqlRowsCopiedEventHandler(bcp_SqlRowsCopied);
bcp.BatchSize = 100;//每次传输的行数
bcp.NotifyAfter = 100;//进度提示的行数
bcp.DestinationTableName = sheetName;//目标表
bcp.WriteToServer(ds.Tables[0]);
}
}
catch (Exception ex)
{
throw ex;
}
}
private static void bcp_SqlRowsCopied(object sender, System.Data.SqlClient.SqlRowsCopiedEventArgs e)
{
//Response.Write("拷贝完成");//此事件处理函数是在批量导入完成以后进行的。
}
1、在SQL SERVER里查询Excel数据:
-- ======================================================
SELECT *
FROM OpenDataSource( 'Microsoft.Jet.OLEDB.4.0',
'Data Source="c:\book1.xls";User ID=Admin;Password=;Extended properties=Excel 5.0')...[Sheet1$]
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')