I must confess that I found that Paradox autoincrement tables are prone to corruption
at least upto BDE4.02.
-----Original Message-----
From: Aaron Scott-Boddendijk [SMTP:[EMAIL PROTECTED]]
Sent: Tuesday, June 01, 1999 12:30 PM
To: Multiple recipients of list delphi
Subject: Re: [DUG]: Two Delphi programs need a single source
> I hope someone has some ideas as I'm stuck.
>
> I have a situation where two delhi programs need to obtain an incrimenting
> unique ID number from the single source.
1. Open a file for reading and writing with deny write sharing mode.
If fail opening then wait a split second and retry.
2. Read ID+1 and write result to file and close file.
If it's for a database app you could use either
Paradox - autoinc field
SQL systems - a stored procedure
ORACLE - a sequence generator.
alternatively create a table with 1 field for each ID
open table exclusively and get next ID alter table to increment ID.
close table.
--
Aaron Scott-Boddendijk
Jump Productions
(07) 838-3371 Voice
(07) 838-3372 Fax
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