c#语句_Excel文件数据库导入SQL Server数据库

Excel文件数据库导入SQL Server数据库

//方案一：通过OleDB方式获取Excel文件的数据，然后通过DataSet中转到SQL Server openFileDialog = new OpenFileDialog();

openFileDialog.Filter = "Excel files(*.xls)|*.xls";

if(openFileDialog.ShowDialog()==DialogResult.OK)

{

FileInfo fileInfo = new FileInfo(openFileDialog.FileName);

string filePath = fileInfo.FullName;

string connExcel = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filePath + ";Extended Properties=Excel 8.0";

try

{

OleDbConnection oleDbConnection = new OleDbConnection(connExcel);

oleDbConnection.Open();

//获取excel表

DataTable dataTable = oleDbConnection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);

//获取sheet名，其中[0][1]...[N]: 按名称排列的表单元素

string tableName = dataTable.Rows[0][2].ToString().Trim();

tableName = "[" + tableName.Replace("'","") + "]";

//利用SQL语句从Excel文件里获取数据

//string query = "SELECT classDate,classPlace,classTeacher,classTitle,classID FROM " + tableName;

string query = "SELECT 日期,开课城市,讲师,课程名称,持续时间 FROM " + tableName;

dataSet = new DataSet();

//OleDbCommand oleCommand = new OleDbCommand(query, oleDbConnection);

//OleDbDataAdapter oleAdapter = new OleDbDataAdapter(oleCommand);

OleDbDataAdapter oleAdapter = new OleDbDataAdapter(query,connExcel);

oleAdapter.Fill(dataSet,"gch_Class_Info");

//dataGrid1.DataSource = dataSet;

//dataGrid1.DataMember = tableName;

dataGrid1.SetDataBinding(dataSet,"gch_Class_Info");

//从excel文件获得数据后，插入记录到SQL Server的数据表

DataTable dataTable1 = new DataTable();

SqlDataAdapter sqlDA1 = new SqlDataAdapter(@"SELECT classID, classDate,

classPlace, classTeacher, classTitle, durativeDate FROM

gch_Class_Info",sqlConnection1);

SqlCommandBuilder sqlCB1 = new SqlCommandBuilder(sqlDA1);

sqlDA1.Fill(dataTable1);

foreach(DataRow dataRow in dataSet.Tables["gch_Class_Info"].Rows)

{

DataRow dataRow1 = dataTable1.NewRow();

dataRow1["classDate"] = dataRow["日期"];

dataRow1["classPlace"] = dataRow["开课城市"];

dataRow1["classTeacher"] = dataRow["讲师"];

dataRow1["classTitle"] = dataRow["课程名称"];

dataRow1["durativeDate"] = dataRow["持续时间"];

dataTable1.Rows.Add(dataRow1);

}

Console.WriteLine("新插入 " + dataTable1.Rows.Count.ToString() + " 条记录"); sqlDA1.Update(dataTable1);

oleDbConnection.Close();

}

catch(Exception ex)

{

Console.WriteLine(ex.ToString());

}

}

//方案二：直接通过SQL语句执行SQL Server的功能函数将Excel文件转换到SQL Server数据库

OpenFileDialog openFileDialog = new OpenFileDialog();

openFileDialog.Filter = "Excel files(*.xls)|*.xls";

SqlConnection sqlConnection1 = null;

if(openFileDialog.ShowDialog()==DialogResult.OK)

{

string filePath = openFileDialog.FileName;

sqlConnection1 = new SqlConnection();

sqlConnection1.ConnectionString = "server=(local);integrated security=SSPI;initial catalog=Library";

//import excel into SQL Server 2000

/*string importSQL = "SELECT * into live41 FROM OpenDataSource" +

"('Microsoft.Jet.OLEDB.4.0','Data Source=" + "\"" + "E:\\022n.xls" + "\"" +

"; User Extended properties=Excel 5.0')...[Sheet1$]";*/

//export SQL Server 2000 into excel

string exportSQL = @"EXEC master..xp_cmdshell

'bcp Library.dbo.live41 out " + filePath + "-c -q -S" + "\"" + "\"" +

" -U" + "\"" + "\"" + " -P" + "\"" + "\"" + "\'";

try

{

sqlConnection1.Open();

//SqlCommand sqlCommand1 = new SqlCommand(); //sqlCommand1.Connection = sqlConnection1; //https://www.360docs.net/doc/7114788370.html,mandText = importSQL;

//sqlCommand1.ExecuteNonQuery();

//MessageBox.Show("import finish!");

SqlCommand sqlCommand2 = new SqlCommand(); sqlCommand2.Connection = sqlConnection1;

https://www.360docs.net/doc/7114788370.html,mandText = exportSQL;

sqlCommand2.ExecuteNonQuery();

MessageBox.Show("export finish!");

}

catch(Exception ex)

{

MessageBox.Show(ex.ToString());

}

}

if(sqlConnection1!=null)

{

sqlConnection1.Close();

sqlConnection1 = null;

}

//方案三：通过到入Excel的VBA dll，通过VBA接口获取Excel数据到DataSet OpenFileDialog openFile = new OpenFileDialog();

openFile.Filter = "Excel files(*.xls)|*.xls";

ExcelIO excelio = new ExcelIO();

if(openFile.ShowDialog()==DialogResult.OK)

{

if(excelio!=null)

excelio.Close();

excelio = new ExcelIO(openFile.FileName);

object[,] range = excelio.GetRange();

excelio.Close();

DataSet ds = new DataSet("xlsRange");

int x = range.GetLength(0);

int y = range.GetLength(1);

DataTable dt = new DataTable("xlsTable");

DataRow dr;

DataColumn dc;

ds.Tables.Add(dt);

for(int c=1; c<=y; c++)

{

dc = new DataColumn();

dt.Columns.Add(dc);

}

object[] temp = new object[y];

for(int i=1; i<=x; i++)

{

dr = dt.NewRow();

for(int j=1; j<=y; j++)

{

temp[j-1] = range[i,j];

}

dr.ItemArray = temp;

ds.Tables[0].Rows.Add(dr);

}

dataGrid1.SetDataBinding(ds,"xlsTable");

if(excelio!=null)

excelio.Close();

}