Search found 753 matches

by aehimself
20.11.2018, 22:26
Forum: ZeosLib 7.2 Forum
Topic: How can I check if connection is active?
Replies: 7
Views: 2534

Re: How can I check if connection is active?

Just keep in mind that not all mainstream database engines support the .Ping function. (yet?) When I was developing an application which had to be able to communicate with ANY type of SQL server I built my own keepalive (NOOP) function by executing a simple query: SELECT 1; If an exception is raised...
by aehimself
20.11.2018, 21:34
Forum: ZeosLib 7.2 Forum
Topic: error in reading sql selection
Replies: 3
Views: 1736

Re: error in reading sql selection

Hello, The thread is quite old but there were no answers so... "A read of address" exception with a low value usually means a reference to a null object. You did not include many details (like if there is a value in the database or not) and I assume the same code was working with pre 7.2.4...
by aehimself
18.11.2018, 18:09
Forum: ZeosLib 7.2 Forum
Topic: Multithreaded application best practices
Replies: 14
Views: 2605

Multithreaded application best practices

Hello all, I was lurking around the forums for long, but now the time arrived for an actual registration :) Therefore - first of all - let me Embrace Zeos a little bit! I started to develop applications with database backends about 6 years ago. I quickly met the standard issues with available compon...