【www.gdgbn.com--php与数据库】

一、备份SQL Server数据库


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("<script language=javascript>alert(""此文件已存在，请从新输入！"");location=""Default.aspx""</script>");return;
    }
    SqlCommand com = new SqlCommand(SqlStr2, con);
    com.ExecuteNonQuery();
    Response.Write("<script language=javascript>alert(""备份数据成功！"");location=""Default.aspx""</script>");
}
catch (Exception error)
...{
    Response.Write(error.Message);Response.Write("<script language=javascript>alert(""备份数据失败！"")</script>");
}
finally
...{
    con.Close();
} 二、还原SQL Server数据库


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();
try...{
    SqlCommand com = new SqlCommand(SqlStr2, con);
    com.ExecuteNonQuery();
    Response.Write("<script language=javascript>alert(""还原数据成功！"");location=""Default.aspx""</script>");
}
catch (Exception error)
...{
    Response.Write(error.Message);Response.Write("<script language=javascript>alert(""还原数据失败！"")</script>");
}
finally
...{
    con.Close();
}

本文来源：http://www.gdgbn.com/jiaocheng/14644/