数据库还原与备份的代码(1)

来源：互联网发布：求质数和的算法编辑：程序博客网时间：2024/05/01 06:13

使用如下代码 ASP.NET 备份和恢复 Sql Server 数据库,只需要拷贝下面源代码即可使用。

备份Sql Server数据库的代码:

string SqlStr1 = "Server=(local);database='" + this.DropDownList1.SelectedValue + "';Uid=sa;Pwd=";
string SqlStr2 = "backup database " + this.DropDownList1.SelectedValue + " to disk='" + this.TextBox1.Text.Trim() + ".bak'";
SqlConnection con = new SqlConnection(SqlStr1);
con.Open(); //建立SQL SERVER数据库连接
try
{
if (File.Exists(this.TextBox1.Text.Trim()))
{
Response.Write(" ");
return;
}
SqlCommand com = new SqlCommand(SqlStr2, con);
com.ExecuteNonQuery(); //备份SQL SERVER 数据库
Response.Write(" ");
}
catch (Exception error)
{
Response.Write(error.Message); //输出备份 SQL SERVER 数据库时产生的错误信息
Response.Write(" ");
}
finally
{
con.Close();
}

还原Sql Server数据库的代码：

string path = this.FileUpload1.PostedFile.FileName; //获得备份路径及数据库名称
string dbname = this.DropDownList1.SelectedValue;
string SqlStr1 = "Server=(local);database='" + this.DropDownList1.SelectedValue + "';Uid=sa;Pwd=";
string SqlStr2 = "use master restore database " + dbname + " from disk='" + path + "'";
SqlConnection con = new SqlConnection(SqlStr1);
con.Open(); //建立SQL SERVER数据库连接
try
{
SqlCommand com = new SqlCommand(SqlStr2, con);
com.ExecuteNonQuery(); //还原SQL SERVER 数据库
Response.Write(" ");
}
catch (Exception error)
{
Response.Write(error.Message); //输出还原 SQL SERVER 数据库时产生的错误信息
Response.Write(" ");
}
finally
{
con.Close(); //关闭数据库连接
}