Y aquí, un poquito más, sacado de la "rlsnotes20_0200_101.pdf" de firebird
Cita:
Lock Timeout for WAIT Transactions
A. Karyakin, D. Yemanov
All Firebird versions provide two transaction wait modes: NO WAIT and WAIT. NO WAIT mode
means that lock conflicts and deadlocks are reported immediately, while WAIT performs a blocking
wait which times out only when the conflicting concurrent transaction ends by being committed or
rolled back.
The new feature extends the WAIT mode by making provision to set a finite time interval to wait for
the concurrent transactions. If the timeout has passed, an error (isc_lock_timeout) is reported.
Timeout intervals are specified per transaction, using the new TPB constant isc_tpb_lock_timeout in
the API or, in DSQL, the LOCK TIMEOUT <value> clause of the SET TRANSACTION statement.
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No es mucho, pero algo es
