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A description of Oracle's 'multi-version read consistency' can be found here: http://www.ss64.com/orasyntax/10locking.html. Even DB2's most liberal CS isolation is more strict then this. [update 04-27-2009]: Support for isolation level 3 queries t...
LOCK ESCALATION: Ability to specify table-level lock-escalation criteria.(RIMS)
Customer wants more granularity on lock-escalation semantics. currently, lock escalation occurs either when an application hit's the MAXLOCKS constraint, or when the database LOCKLIST becomes full. Since lock-escalation is more detrimental on tabl...
Optimizer documentation needs enhancement. Until a lab services consultant came onsite to help them they were not able to adequately tune their queries due to poor optimizer documentation. Benefit: Verizon is now a very big user of DB2 and we spen...
Ability to enable/disable query optimization for foreign keys at a statement level. Example, many ETL (Extract, Transform, Load) processes utilize SQL statements to verify data integrity when foreign keys are not enforced. In order to return corre...
RESTORE fails with SQL30082N RC=3 if an LDAP database with the same name already exists in Active Directory(RIMS)
Restore fails with 'SQL30082N Security processing failed with reason '3' ('PASSWORD MISSING')' when there's still a database with the same name in the Windows Active Directory but on another server.The restore completes when the other db is uncata...
Ability to backup/clone a database across the network (redirected restore)(RIMS)
Verizon needs the capability to issue a set write suspend IO command on database. Get the data to another instance at another location and bring it up. Informix has this ability and Verizon likes it. This is called a redirected restore. Verizon's ...
When a session is forced or rolled back, provide a facility to report percent complete (work done divided by total work). Also required for crash-recovery. It is currently impossible to determine how much longer a rollback or crash-recovery will t...
BACKUP Performance: Incremental and Delta backups should not have to read all tablespace pages.(RIMS)
Backup currently reads ALL pages in the tablespace to examine the pageLSN in order to determine if a page should be included in the image. This is poor for performance, customer want this addressed using a 21th century approach.
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