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How to connect SQL database to a certain Server

Posted on 2008-11-03
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Last Modified: 2010-04-21
Hi,

After installing my application including SQL Server 2005, the database will be created.
How can I connect the created SQL database to the SQL Sever from with Delphi (by code)?

Regards,
Stef
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Question by:Delphiwizard
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Johnjces earned 500 total points
ID: 22867064
Here is some code  I got somewhere, (credit is noted) that uses ADO. Hopefully you are using ADO.

John

/************************************
//Attach and detach an MSSQL database
//or MSDE using ADO in Delphi 7.
//
//by Joseph Fuchaka Barasa
//jfuchakab@yahoo.com
//
//Helps one to work with database objects
//(tables, queries, stored procedures
//etc) using free version of MSDE.
//without using the costly Enterprise
//version of the database.
************************************/
procedure detach_database;
var
strcommand, detachedDB: string;
begin
 
  detachedDB:=trim(EditDetachedBName.Text);//database name
  strcommand:='EXEC sp_detach_db @dbname = '+detachedDB+'';//detaching
  with AttachConn do begin//AttachConn is ADOConnection
    close;//attach on the master system database.
    //computer_name is the name of your computer
    ConnectionString:='Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog='+'master'+';Data Source='+computer_name+'';
    open;
  end;//with attachconn
   with qryDetach do begin//qryDetach is AdoQuery
        close;
        sql.Clear;
        sql.Text:=strcommand;
        try
          ExecSQL;
          ShowMessage('Detach was Successfull');
        Except on E:Exception do begin
          Showmessage('Error Dettaching the Database');
          Application.Terminate;
        end;
        end;//try - except
   end;
   end;//detach
 
 
 
procedure attach_database;
var
  strcommand, dbase_Name, file1, file2: string;
 
begin
  //database name
  dbase_Name:=trim(EditAttachedDBase.Text);
  file1:=trim(EditDatabaseFIle.Text);//database file
  file2:=trim(EditLogFile.Text);//log file
  with AttachConn do begin
    close;//connect to master system database
    ConnectionString:='Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog='+'master'+';Data Source='+computer_name+'';
    open;
  end;//with attachconn
 
  //sql commands for attaching
  strcommand:='EXEC sp_attach_db @dbname = '+dbase_Name+', ';
  strcommand:=strcommand + '@filename1 = "'+File1+'"'+', ';
  strcommand:=strcommand + '@filename2 = "'+File2+'"'+'';
   with qryAttach do begin
        close;
        sql.Clear;
        sql.Text:=strcommand;
        try
          ExecSQL;
          ShowMessage('Database Successfully attached');
        Except on E:Exception do begin
          Showmessage('Error Attaching the Database');
          Application.Terminate;
        end;
        end;//try - except
   end;//with query attach
 
end; 

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Author Closing Comment

by:Delphiwizard
ID: 31512660
Thank you very much!
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LVL 18

Expert Comment

by:Johnjces
ID: 22867347
Glad I could help this AM! Thanks!

John
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