See non commited data

Discussion of open issues, suggestions and bugs regarding IBDAC (InterBase Data Access Components) for Delphi, C++Builder, Lazarus (and FPC)
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calou
Posts: 116
Joined: Tue 27 May 2008 12:46

See non commited data

Post by calou » Mon 21 Mar 2011 17:16

hello,

With one query i do a delete in a table and i execute the method (but i don't commit).
Is it possible for an other query to "see" the new data even if they are not commited?
I try to look at the isolationlevel property but i am not sure if it is possible.

Thanks for help

Regards

tsteinmaurer
Posts: 52
Joined: Thu 17 Dec 2009 08:25

Post by tsteinmaurer » Mon 21 Mar 2011 19:14

If the other query uses the same transaction, then yes, it will see the changes. If it is another transaction then no. Firebird/InterBase does not support the READ UNCOMMITTED isolation level.

AndreyZ

Post by AndreyZ » Tue 22 Mar 2011 09:57

Hello,

Thank you, tsteinmaurer, for your help.
It's true, one query can see uncommited changes made by other query only if both queries use the same transaction.

calou
Posts: 116
Joined: Tue 27 May 2008 12:46

Post by calou » Tue 22 Mar 2011 10:44

Thanks for help

AndreyZ

Post by AndreyZ » Tue 22 Mar 2011 11:44

Feel free to contact us if you have any further questions about IBDAC.

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