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Posted on 1998-07-27
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Last Modified: 2012-05-04
Hi.

I want to use MDB database.

Please teach me how to program.
Or please teach me website that I can download a free component.

Sakya
 
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Question by:sakya
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BoRiS earned 150 total points
ID: 1358736
sakya

Check out the Delphi deli under database components...or torry's delphi page...

www.delphideli.com
www.torry.ru

Later
BoRiS
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Expert Comment

by:SkyGood
ID: 1358737
The text below helped me getting a connection to an Acces file .
I have not checked if the DLLs where the right, so i think there schuld be a big chance that the steps outlined below are OK for the newer "Version" of Windows 3.11 ( Win95 and WinNT )

 Alright gang.  Here is my most straight forward explanation of how to  connect your Delphi application to an Access 2.0 database.  With this  method, I have connected to Access 2.0 databases, and been able to read and  write records to my hearts content.  NOTE: You MUST have the proper ODBC  drivers.  If you don't, this will not work!

REQUIRED DRIVERS:
      ODBCJT16.DLL            dated 11/18/94 or later
      ODBCINST.DLL            dated 08/17/94 or later

      ODBCCTL16.DLL        dated 11/18/94 or later
      MSAJT200.DLL            dated 11/18/94 or later
      MSJETERR.DLL         dated 11/18/94 or later
      MSJETINT.DLL            dated 11/18/94 or later

To the best of my knowledge, these are all of the drivers that are above and  beyond your base ODBC drivers.  You should be able to obtain these from MS  on their FTP/WWW site, however I do not know exact directories.  My company  is a MS Solutions Provider, and we obtained these drivers on one of the many  CDs we received from MS.

Now for the meat of this posting:

To access a database via ODBC, you must first create an ODBC connection to  the database.
   1) Open Control Panel, and then select ODBC.
   2) When the Data Sources dialog appears, select Add.
   3) If you have installed all of the drivers properly, you should see the  following Access drivers:
         Access Data (*.mdb)
         Access Files(*.mdb)
         Microsoft Access Driver (*.mdb)
   4) The one you MUST choose is the third one, Microsoft Access Driver.   Choosing any of the others will not work.

   5) You will then be presented with the ODBC Microsoft Access 2.0 Setup  dialog.  Fill this in with the information regarding the database to which  you wish to connect.
   6) Save the settings and then exit all the way out of Control Panel.

After having made a proper connection to the database with ODBC, the rest is  quite simple.
   7) Open BDE Config.
   8) Choose New ODBC Driver.
   9) Give your SQL link a name
   10) From the Default ODBC Driver combo box, you must choose the Microsoft  Access Driver, just the same as you did in the ODBC setup.  Do not choose  Access Data/Files drivers.

   11) If everything is setup properly, the name of your database should  appear in the Default Data Source Name combo box.  Select it now.
   12) Select OK, you will be back to the main dialog for BDE Config.   Select the aliases tab.
   13) Create a new alias, using the SQL link that you just created (it will  start with ODBC_) as your Alias Type.
   14) Now save and exit from BDE Config.

You should now be able to get to you Access 2.0 database with both read and  write instructions.

And finally...
I must say that having got to Access, via ODBC, you will probably wish you  hadn't.  It is sssllllooowww.  Anytime we start adding layers, it gets  slower and slower.  Normally, I would recommend staying away from VB like
the plague (I'm an old C++ hacker of many years, and the term BASIC makes me  shudder).  However, at this point in time, the best way to use Access  databases is through either Access or VB.  Microsoft is very close-mouthed  about the structure of Access databases, and there is no indication that  they are planning to change ("You either use VB/Access or we'll make you pay  through the ODBC monster!").  Sorry, I digress.  My recommendation, if you  absolutely MUST use Access, then use VB.  Otherwise, migrate your database  to a more open system (Paradox,dBase/FoxPro,anything you can get a native  engine), and use Delphi.

Lance Leverich


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Author Comment

by:sakya
ID: 1358738
Thank BoBis.
I will check out these websites.

And thanks SkyGood.
I appreciate your kindness and your good advice.

Sakya


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