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As i also got problems with this error non of the dynamic liberallys can be found:fbclientd20.dll and fbclientd.dll although i put the librarys nearly everywhere ... o in the database directory o in the application directory o in the windir\system32 directory and so on ... i made the following chang...

mysql doesn't. ... I think gto may be a little too optimistic on this. The only way I see it possible is by making the IB transaction a special kind of connection object. Mark So as long as there is no solution for the described problem i have to use several Connections :-( To make this easier, i m...

... Let's see if I undertood correctly: ... I can do this modification in some time. We only need to see if it really worth the time spent and what databases support this feature. To me, looks good and usefull, as I do use firebird and it will help me in some ways. Hey gto, yes, you understood it p...

I don't know how many databases support different simultaneous transactions within one connection. But I know at least oracle and mysql do NOT support it. (Except for the special case of autonomous transactions in Oracle, which could help you out here) Does FB/IB support this? Or at least the stric...

[quote="DarylC"][quote="Lutz.H"]I know that it is possible to solve this problem with independent ZConnections. Lutz[/quote] This seems like an easy solution. Why do you want to avoid it? You could have several ZConnection components. One for the barcoder, one for the external ev...

[quote="seawolf"]For every transaction you can specify an isolation level, so take a look at the "set transaction" firebird command. Moreover ZConnnection has a "transaction isolation" property.[/quote] I am not sure, how this should help: t+0: Transaction 1 begins t+1:...

Maybe another important information:
I use firebird 2.x as database

What i try to do: o Only ONE ZConnection in the projects main form o all other component - like ZTable - refer to this ZConnection as i dont want to waste time opening more connections in other forms o some events are called by external hardware like for example barcode-scanners What might happen: o...