gettingstarted
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Re: database help

To: gettingstarted at lists dot realsoftware dot com
Subject: Re: database help
From: GAmoore at aol dot com
Date: Sat, 31 Jul 2004 12:28:23 EDT
Delivered-to: gettingstarted at lists dot realsoftware dot com
>     1) getting the data from the files into the database
>     2) getting the data from the database into the listboxes, etc.
> 

You probably aught to get a book like Swaine's quickstart guide because these 
things are a little more complicated than can be easily explained. Here is an 
outline.

1. database file -> database array
     A. Open the file ... dialog box....getfolderitem ....
     B. Do a SQL select statement to choose which (or all) data to read, this 
creates a record set
         (assumes you have created a database file already)
     C. You check for it not being nil
     D. If not, you create a loop to read the data in, line by line, and end 
of "eof"
     E. Where to put the data? I define a class (like a data structure) and 
make an array of them
         and read them one by one, expanding the size of the array each time, 
so its a completely
         variable sized array. This is a little task to learn too.

2. database array -> Listbox
     A. Make a method, e.g. "List_Employees"
     B. clear the list box contents - delete all rows - so it doesn't append
     C. Loop over the array and add one row at a time to the listbox.
        There is a certain formatting method to this which is unique.

It took me a long time, and the help of people on this list to get this work
ing. I would suggest starting very small - just make an simple example and get 
it to work, the expand later.
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