我们经常需要在程序中对数据库进行备份和恢复,以防止数据库遭到破坏带来巨大的损失。本文就向大家介绍了在ASP.NET中备份和恢复Sql Server 数据库的方法。
1、在ASP.NET中备份SqlServer数据库
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中还原SqlServer数据库
源程序代码片段: 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(" "); } catch (Exception error) { Response.Write(error.Message); Response.Write(" "); } finally { con.Close(); }