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Customer would like non-inline LOBS to also be compressed, as inline LOBs can currently be. Many other datatypes can be compressed and there are many large (up to 20MB) LOBs that are stored outside the table that would not eat up so much space if...
Use FSCR information to ommit empty data pages while performing Table Scan (TBSCAN)
ABSTRACT:Table scan over volatile table with large number of empty pages scans all empty pages instead of using FSCR to find pages to be scanned.VERSION INFORMATION:DB2 9.7.FP5 on Linux / DB2 9.7.FP9a on AIX 7.1 / DB2 10.5.FP4 on LinuxTECHNICAL IN...
1. many customers expect to truncate a table partition without first detach and then drop, and finaly add a new partition with the same definition as the detached partition, because they may design their range partition as "Jan, Feb, ... Dec" with...
DB2 PureXML does not support XML Schema Version 1.1, although it would be very useful. XML Schema Version 1.1 goes far to correct numerous inadequacies in XML Schema Version 1.0 for extensibility of data models in order to meet future needs.
Increase the number of REORG-recommended operations allowed before a full offline reorg must be performed
The current documentations in v11.5 indicate that only 3 units of work containing REORG-recommended operations are allowed.https://www.ibm.com/support/knowledgecenter/SSEPGG_11.5.0/com.ibm.db2.luw.sql.ref.doc/doc/r0000888.html"There can be up to t...
Currently, an online REORG will run as fast as it can (but I think limited to a single thread).It would useful if we made it respect the utility throttling limit that we have in place for other types of maintenance activities (runstats, backup, re...
Add option ：statement rollback is able to release the locks for the failed statement.
When -803 ( violating unique key constrain ) happen on a statement, there are two things happen1) db2 still hold the lock on the row accessed by the statement that cause -803 , no matter the statement had fail.2) The transaction was not rollbacked...
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