Search found 753 matches
- 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...
- 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...
- 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...