我們經常需要在程序中對數據庫進行備份和恢復,以防止數據庫遭到破壞帶來巨大的損失。本文就向大家介紹了在ASP.NET中備份和恢復Sql Server 數據庫的方法。
1、在ASP.NET中備份SqlServer數據庫
源程序片段如下:
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();
try
{
if (File.Exists(this.TextBox1.Text.Trim()))
{
Response.Write(" ");
return;
}
SqlCommand com = new SqlCommand(SqlStr2, con);
com.ExecuteNonQuery();
Response.Write(" ");
}
catch (Exception error)
{
Response.Write(error.Message);
Response.Write(" ");
}
finally
{
con.Close();
}
2、在ASP.NET中還原SqlServer數據庫
源程序代碼片段:
string path = this.FileUpload1.PostedFile.FileName; //獲得備份路徑及數據庫名稱
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();
try
{
SqlCommand com = new SqlCommand(SqlStr2, con);
com.ExecuteNonQuery();
Response.Write(" ");
}
catch (Exception error)
{
Response.Write(error.Message);
Response.Write(" ");
}
finally
{
con.Close();
}
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