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Diego Pires Plentz resolved HHH-2010.
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Assignee: Diego Pires Plentz
Resolution: Duplicate
getForUpdateString is not correct in DB2Dialect; session.lock
doesn't work as expected.
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Key: HHH-2010
URL:
http://opensource.atlassian.com/projects/hibernate/browse/HHH-2010
Project: Hibernate3
Issue Type: Bug
Components: core
Affects Versions: 3.1.3, 3.2.0.cr3
Environment: 3.1.3, DB2
Reporter: Lari Hotari
Assignee: Diego Pires Plentz
The correct getForUpdateString for DB2 should be "for update with rr"
see:
http://opensource.atlassian.com/projects/hibernate/browse/HB-1032
DB2 will release all locks created in a result set if the isolation level is lower than
TRANSACTION_SERIALIZABLE (RR in DB2).
Locks and concurrency control in DB2:
http://publib.boulder.ibm.com/infocenter/db2help/topic/com.ibm.db2.udb.do...
"
The duration of row locking varies with the isolation level being used:
* UR scans: No row locks are held unless row data is changing.
* CS scans: Row locks are only held while the cursor is positioned on the row.
* RS scans: Only qualifying row locks are held for the duration of the transaction.
* RR scans: All row locks are held for the duration of the transaction.
"
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