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Utilities (Export Import Load db2look etc)

Showing 141

Add flag into db2advis to ignore existing indexes

When troubleshooting performance issues on tables with a high number of indexes, the db2advis tool kind of falls flat. What we have done to get around this is to restore a backup of the database in question, drop all indexes, and then run the db2a...
about 5 years ago in Db2 / Utilities (Export Import Load db2look etc) 0 Not under consideration

Enable EXPORT to use a Storage Access Alias

Enabling EXPORT to use a Storage Access Alias will be very useful for DBA's using both on Prem and Cloud environments. It can only be used by LOAD/INGEST/BACKUP/RESTORE at the moment. Adding the capability to store data on object storage in the cl...
over 5 years ago in Db2 / Utilities (Export Import Load db2look etc) 0 Not under consideration

Online Reorg takes 10 times the size of the table in logs to complete

Note - case id TS000861837 (it won't let me inter this in the pmr)See example provided in pmr.Some table take more than 10 times the size of the table in logs to complete.There seems to be very little in the way of documentation that I or the pmr ...
over 5 years ago in Db2 / Utilities (Export Import Load db2look etc) 0 Not under consideration

overrule the automatic CPU parallelism calculation of LOAD apart from command line

LOAD does an automatic CPU parallelism calculation, if not explicitly specified in the command by the user.To gain max performance, LOAD assumes, it is the only LOAD (and only application) running on the system and consumes nearly all available CP...
over 5 years ago in Db2 / Utilities (Export Import Load db2look etc) 0 Not under consideration

Enable 'db2move' to change definitions during COPY SCHEMA

Using a list of schemas with db2move COPY schema function allows to copy a database content including function and procedure definitions from one database to another,And in the default mode "DDL_AND_LOAD", it copies definitions and loads data usin...
over 5 years ago in Db2 / Utilities (Export Import Load db2look etc) 0 Not under consideration

Preserve table creation timestamp after reorg-finsished using admin_move_table procedure (online table move)

Following Knowledge Center, https://www.ibm.com/support/knowledgecenter/en/SSEPGG_10.5.0/com.ibm.db2.luw.admin.perf.doc/doc/c0024850.htmlwe perform table reorg using admin_move_table . The issue is, after run admin_move_table command, the original...
over 5 years ago in Db2 / Utilities (Export Import Load db2look etc) 1 Not under consideration

Case TS000932532 - Load should be able to bypass a GENERATED-ALWAYS-from-variable column

ProblemA load on a table containing a certain type of GENERATED ALWAYS column fails with the very odd message "Unexpected load gencol section".Research pointed out that LOAD cannot handle in any way a GENERATED ALWAYS column getting its informatio...
almost 6 years ago in Db2 / Utilities (Export Import Load db2look etc) 0 Not under consideration

LOAD should allow collecting STATISTICS without USE PROFILE option for row based tables

LOAD collects "default" statistics like auto-runstats when loading into BLU (RUNSTATS ... WITH DISTRIBUTION AND SAMPLED DETAILED INDEXES ALL).I assume this got not changed because the fear of incompatibility with existing behavior. Therefore pleas...
almost 6 years ago in Db2 / Utilities (Export Import Load db2look etc) 0 Not under consideration

auto-reorg OLR for cleanup of overflows

Auto-reorg should use online window to issue REORG CLEANUP OVERFLOWS (and also trigger a RUNSTATS afterwards).Problem to solve: SQL optimizer thinks overflow accesses are quite expensive and then might to start choosing different access plans that...
almost 6 years ago in Db2 / Utilities (Export Import Load db2look etc) 1 Not under consideration

LOAD to COMMIT extent allocation

LOAD is today a single transaction. It does not create much log volume, but LOAD might run long if lots of data need to be loaded. This can lead to log full disk situation, if concurrent transactions create a large log volume.The extent allocation...
almost 6 years ago in Db2 / Utilities (Export Import Load db2look etc) 0 Not under consideration