IBM Data and AI Ideas Portal for Customers


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Db2

Showing 1390

Removing defunct Delta Backup images after automatic database backup image removal

We have automated backup options enabled (num_db_backups and rec_his_retentn both set). Our backup schedule takes a full backup on Sunday and a Delta every other day of the week. When a full backup image qualifies for removal, with reference to th...
almost 7 years ago in Db2 / Backup/Restore/ Rollforward/ Recover 0 Not under consideration

Reorg on criteria

Add new option to allow the reorg utility to discard / keep rows during the reorganization
about 10 years ago in Db2 / Utilities (Export Import Load db2look etc) 0 Not under consideration

DB2 online backup using Tivoli Storage Manager causes DB2 hang

Fix the online back freezing issue as described at http://www-01.ibm.com/support/docview.wss?uid=swg21979921
over 6 years ago in Db2 / Backup/Restore/ Rollforward/ Recover 0 Not under consideration

Allow to switch off username conversion to lowercase

We are currently using Db2, SLES11, RACF/LDAP (zOS). Application users (personalized users, not system users) connecting to Db2 are defined in RACF/LDAP. Db2 user authentication and authorization is using Transparent LDAP, accessing RACF/LDAP. T...
about 5 years ago in Db2 / Security 0 Not under consideration

db2prereqcheck on AIX should detect presence of a soft link for /usr/bin/python3 as it is required by some pureScale cluster components

db2prereqcheck contains code to check the presence of python3. This is required for pureScale (GPFS in particular). However, if the softlink in /usr/bin/python3 is missing, when upgrading from Db2 11.5.8 to 11.5.9, db2prereqcheck doesn't log any m...
6 months ago in Db2 / Installation & Upgrade 0 Submitted

Consideration of Statistical Views for INSERT with Sub-SELECT

We try to improve the performance on an INSERT with an underlying complex subselect eg. "INSERT INTO table "Therefore we created a statistical view through which the optimizer should be able to get more distribution statistics and build a better a...
about 7 years ago in Db2 / Statements (DDL and DML) 0 Not under consideration

Reorg a data partitioned table with non partitioned indexes online

Currently a data partitioned table with non partitioned indexes can not be reorged online, even the latest V11.1.2.2 can not do this.
about 7 years ago in Db2 / High Availability and/or Disaster Recovery 1 Not under consideration

new aggregated WLM threshold for LOCKLIST at workload/service class level

We have MAXLOCK db-cfg parameter which can be used to avoid a single connection (UOW) to consume the LOCKLIST space. But this parameter some times it not enough. I have seen LOCK escalation cases happening (which locked system tables, causing huge...
over 3 years ago in Db2 / Workload Management 0 Future consideration

dmctop - add interval and samples for background data collection

Like db2top, dmctop needs the capability to collect data using -i (interval in seconds) and -s (number of samples) when collecting data in background mode (-b).
over 1 year ago in Db2 / DMCtop 0 Not under consideration

TIMESTAMPFORMAT option in the CREATE SERVER clause

When performing federated queries from Db2 to Presto, it seems that the option TIMESTAMPFORMAT ( https://www.ibm.com/docs/en/db2/11.5?topic=options-jdbc ) for setting the timestamp format of the data source does currently have no impact when speci...
6 months ago in Db2 / Federation 0 Submitted

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