Gateways, Oracle Lite, Oracle DB Mob. Server, TimesTen (MOSC)

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Concurrent Access Requirement

edited Oct 22, 2012 6:35AM in Gateways, Oracle Lite, Oracle DB Mob. Server, TimesTen (MOSC) 1 commentAnswered
Hi,

We have an Oracle 9i (9.2.0.8.0) database talking to a DB2 (v7r1) database on iSeries via 10g Gateway Heterogeneous Services (dblink) using the DataDirect driver.

Currently we only have one database link, which has the default behaviour, whereby Session B querying a table Session A has outstanding transactions on, will wait until session A’s locks are removed (only if the row(s) session A has locks would be included in Session B's result) - In most cases Session B will timeout after a default pre-defined period.

We have tried numerous options to change this behaviour, to enable Session B to simply read the currently commited values, or even the uncommitted values and not wait.

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