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Oracle supports an optional WHERE condition for insert/update/delete operations when using MERGE on the source or target table This could be handy in some situations to skip some rows if the condition is not true.
Fixing IPA in a 15TB OLTP database or large database
We have a 15 TB size oltp db running in 12.10.FC12. We want to fix the data with pending IPA,however, we cannot use the traditional way due to : - we cannot put the DB offline for hours to fix the data with pending IPA and it will be between 5 to ...
Smart Trigger API for Java to monitor smart trigger session changes at the backend DB
The Smart Trigger Java library allows for the use of a detachable session which is assigned a session ID. One can use this session ID to reconnect to an existing session when starting up a Smart Trigger. But, if for some reason this session ID in ...
Improve timestamp format in message and backup logs (ISO-8601)
Streaming messages to log ingestion systems, e.g. Elastic Stack, is a useful way of analysing logs and generating notifications when certain messages are seen. Displaying the messages in the right order when daylight saving switches occur is an is...
More efficient unique indexes for monotonically increasing keys and constraints
Currently an index on a SERIAL and other monotonically increasing keys only add to the last node in the index causing the node to split into two half filled nodes. Eventually a sufficient number of nodes have so split that the index's search effic...
enhancements to sysprocedures table and dbschema utility
Currently, there does not appear to be anything in the sysprocedures table to identify which procedures are provided by Informix (system routines) vs those created by users (user routines). The mode column does not appear to address this particula...
Allow Bufferpool Min_lru_dirty and Max_lru_dirty Threshold values to be altered dynamically
onparams -b can be used to add a new bufferpool and AUTO_LRU_TUNING are available on informix server but first only adds a bufferpool of a new page size and the latter only kicks in if some foreground writes occur on a server which ideally is neve...
Different message when transaction time limit reached
When transaction duration limit is reached the following message occurs in the online log file 08:56:28 sid 11617 - email@example.com - pid 6811 terminated because session transaction duration (60 seconds) has exceeded limit. This session i...
Allow the option to use LDAP for HQ Authentication. Build the user name in HQ but allow it to use domain authentication. This would also allow HQ to write backups to mapped drives. See Support Case TS007408895 for further details.
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