C#附加SQL2005数据库详细代码

方法一：

1.如果附加数据库时，没有指定逻辑名，则在SQL2005上显示为“全路径，且为大写”。比如，数据库文件D:***est.mdf和D:***est.ldf，附加到SQL服务器上时，如果没有指定逻辑名，则在SQL2005上显示为“D:***EST.MDF”。此时，C#的连接字符串为“DataSource=dsName;AttatchDBFilename=”D:My***t.mdf”;User ID=id;Password=pw”；

2.如果附加数据库时，指定了逻辑名，则在SQL2005上显示为“逻辑名”，此时，C#的连接字符串为“DataSource=dsName;AttatchDBFilename=”D:My***t.mdf”;Initial Catalog=aa_LogicName;User ID=id;Password=pw”；

3.被附加的数据库名称不可随意更改；否则容易出现错误。

方法二：

string Db***h=System.Environment.CurrentDirectory De***Data.MDF">+@"De***Data.MDF";
string Lo***th=System.Environment.CurrentDirectory De***Log.LDF">+@"De***Log.LDF";
string StrSql="exec sp_attach_db @dbname='supmark',@filename1='"+DbPath+"',@filename2='"+LogPath+"'";
string strcon="Server=(local);Integrated Security=SSPI;Database=master";
SqlConnection cn=new SqlConnection(strcon);
SqlCommand cmd =new SqlCommand (StrSql,cn);
cn.Open();
cm***xecuteNonQuery();
cn.Close();

方法三详细代码：

using System;
using Sy***m.Collections.Generic;
using Sy***m.Windows.Forms;
using Sy***m.Data.SqlClient;
using Sy***m.Data;
using Sy***m.ServiceProcess;

namespace Ad***ZJC.DataBaseControl
{
///

/// 数据库操作控制类
///

public class DataBaseControl
{
///

/// 数据库连接字符串
///

public string ConnectionString;

///

/// SQL操作语句/存储过程
///

public string StrSQL;

///

/// 实例化一个数据库连接对象
///

private SqlConnection Conn;

///

/// 实例化一个新的数据库操作对象Comm
///

private SqlCommand Comm;

///

/// 要操作的数据库名称
///

public string DataBaseName;

///

/// 数据库文件完整地址
///

public string DataBase_MDF;

///

/// 数据库日志文件完整地址
///

public string DataBase_LDF;

///

/// 备份文件名
///

public string DataBaseOfBackupName;

///

/// 备份文件路径
///

public string DataBaseOfBackupPath;

///

/// 执行创建/修改数据库和表的操作
///

public void DataBaseAndTableControl()
{
try
{
Conn = new SqlConnection(ConnectionString);
Co***Open();

Comm = new SqlCommand();
Co***Connection = Conn;
Co***CommandText = StrSQL;
Co***CommandType = Co***ndType.Text;
Co***ExecuteNonQuery();

Me***geBox.Show("数据库操作成功！", "信息提示", Me***geBoxButtons.OK, Me***geBoxIcon.Information);
}
catch (Exception ex)
{
Me***geBox.Show(ex***ssage, "信息提示", Me***geBoxButtons.OK, Me***geBoxIcon.Information);
}
finally
{
Co***Close();
}
}

///

/// 附加数据库
///

public void AddDataBase()
{
try
{
Conn = new SqlConnection(ConnectionString);
Co***Open();

Comm = new SqlCommand();
Co***Connection = Conn;
Co***CommandText = "sp_attach_db";

Co***Parameters.Add(new SqlParameter(@"dbname", Sq***Type.NVarChar));
Co***Parameters[@"dbname"].Value = DataBaseName;
Co***Parameters.Add(new SqlParameter(@"filename1", Sq***Type.NVarChar));
Co***Parameters[@"filename1"].Value = DataBase_MDF;
Co***Parameters.Add(new SqlParameter(@"filename2", Sq***Type.NVarChar));
Co***Parameters[@"filename2"].Value = DataBase_LDF;

Co***CommandType = Co***ndType.StoredProcedure;
Co***ExecuteNonQuery();

Me***geBox.Show("附加数据库成功", "信息提示", Me***geBoxButtons.OK, Me***geBoxIcon.Information);
}
catch (Exception ex)
{
Me***geBox.Show(ex***ssage, "信息提示", Me***geBoxButtons.OK, Me***geBoxIcon.Information);
}
finally
{
Co***Close();
}
}

///

/// 分离数据库
///

public void DeleteDataBase()
{
try
{
Conn = new SqlConnection(ConnectionString);
Co***Open();

Comm = new SqlCommand();
Co***Connection = Conn;
Co***CommandText = @"sp_detach_db";

Co***Parameters.Add(new SqlParameter(@"dbname", Sq***Type.NVarChar));

Co***Parameters[@"dbname"].Value = DataBaseName;

Co***CommandType = Co***ndType.StoredProcedure;
Co***ExecuteNonQuery();

Me***geBox.Show("分离数据库成功", "信息提示", Me***geBoxButtons.OK, Me***geBoxIcon.Information);
}
catch (Exception ex)
{
Me***geBox.Show(ex***ssage, "信息提示", Me***geBoxButtons.OK, Me***geBoxIcon.Information);
}
finally
{
Co***Close();
}
}

///

/// 备份数据库
///

public void BackupDataBase()
{
try
{
Conn = new SqlConnection(ConnectionString);
Co***Open();

Comm = new SqlCommand();
Co***Connection = Conn;
Co***CommandText = "use master;backup database @dbname to disk = @backupname;";

Co***Parameters.Add(new SqlParameter(@"dbname", Sq***Type.NVarChar));
Co***Parameters[@"dbname"].Value = DataBaseName;
Co***Parameters.Add(new SqlParameter(@"backupname", Sq***Type.NVarChar));
Co***Parameters[@"backupname"].Value = @DataBaseOfBackupPath + @DataBaseOfBackupName;

Co***CommandType = Co***ndType.Text;
Co***ExecuteNonQuery();

Me***geBox.Show("备份数据库成功", "信息提示", Me***geBoxButtons.OK, Me***geBoxIcon.Information);
}
catch (Exception ex)
{
Me***geBox.Show(ex***ssage, "信息提示", Me***geBoxButtons.OK, Me***geBoxIcon.Information);
}
finally
{
Co***Close();
}
}

///

/// 还原数据库
///

public void ReplaceDataBase()
{
try
{
string BackupFile = @DataBaseOfBackupPath + @DataBaseOfBackupName;
Conn = new SqlConnection(ConnectionString);
Co***Open();

Comm = new SqlCommand();
Co***Connection = Conn;
Co***CommandText = "use master;restore database @DataBaseName From disk = @BackupFile with replace;";

Co***Parameters.Add(new SqlParameter(@"DataBaseName", Sq***Type.NVarChar));
Co***Parameters[@"DataBaseName"].Value = DataBaseName;
Co***Parameters.Add(new SqlParameter(@"BackupFile", Sq***Type.NVarChar));
Co***Parameters[@"BackupFile"].Value = BackupFile;

Co***CommandType = Co***ndType.Text;
Co***ExecuteNonQuery();

Me***geBox.Show("还原数据库成功", "信息提示", Me***geBoxButtons.OK, Me***geBoxIcon.Information);
}
catch (Exception ex)
{
Me***geBox.Show(ex***ssage, "信息提示", Me***geBoxButtons.OK, Me***geBoxIcon.Information);
}
finally
{
Co***Close();
}
}
}
}

/*
///调用事例：

#----------------------------------------------------还原数据库---------------------------------------------------------#

private void button0_Click(object sender, EventArgs e)
{
DataBaseControl DBC = new DataBaseControl();
DB***onnectionString = "Data Source=(local);User id=sa;Password=123456; Initial Catalog=master";
DB***ataBaseName = "MyDatabase";
DB***ataBaseOfBackupName = @"back.bak";
DB***ataBaseOfBackupPath = @"D:Program FilesMicrosoft SQL ServerMSSQLData";
DB***eplaceDataBase();
}

#--------------------------------------------------附加数据库---------------------------------------------------------#

private void button1_Click_1(object sender, EventArgs e)
{
DataBaseControl DBC = new DataBaseControl();
DB***onnectionString = "Data Source=(local);User id=sa;Password=123456; Initial Catalog=master";
DB***ataBaseName = "MyDatabase";
DB***ataBase_MDF = @"D:Program FilesMicrosoft SQL ServerMSSQLDataMy***abase_Data.MDF";
DB***ataBase_LDF = @"D:Program FilesMicrosoft SQL ServerMSSQLDataMy***abase_Log.LDF";
DB***ddDataBase();
}

#--------------------------------------备份数据库--------------------------------------------------------------------#

private void button2_Click(object sender, EventArgs e)
{
DataBaseControl DBC = new DataBaseControl();
DB***onnectionString = "Data Source=(local);User id=sa;Password=123456; Initial Catalog=master";
DB***ataBaseName = "MyDatabase";
DB***ataBaseOfBackupName = @"back.bak";
DB***ataBaseOfBackupPath = @"D:Program FilesMicrosoft SQL ServerMSSQLData";
DB***ackupDataBase();
}

#----------------------------------------分离数据库-----------------------------------------------------------------#
　　　　
private void button3_Click(object sender, EventArgs e)
{
DataBaseControl DBC = new DataBaseControl();
DB***onnectionString = "Data Source=(local);User id=sa;Password=123456; Initial Catalog=master";
DB***ataBaseName = "MyDatabase";
DB***eleteDataBase();