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Search results: Db2

Showing 452 of 2592
6 MERGED

Need a utility to defragment large tables in a timely fashion when REORG is unable to reclaim space

Merged
Large, highly volatile, tables can become heavily fragmented when there is a significant amount of daily delete and insert activity. In some cases, the rows deleted don't leave enough empty space on a page for a REORG to clean up or reclaim that s...
over 1 year ago in Db2 / Db2 on Cloud 1 Future consideration

Monitor activities by the user

Regarding DMC capabilities, I would like to know if there is a possibility to monitor activities by the user. This is very important for our Db2 environment, whether qualified or unqualified table names are used (in case of unqualified names would...
almost 3 years ago in Db2 / Data Management Console 3 Functionality already exists

ALTER TABLE DROP COLUMN for BLU tables

ALTER TABLE DROP COLUMN is not yet supported on BLU tables.
over 7 years ago in Db2 1 Delivered

Add table function to "pretty print" explained statement

Db2 allows to install the EXPLAIN TABLES using a procedure (https://www.ibm.com/support/knowledgecenter/SSEPGG_11.1.0/com.ibm.db2.luw.admin.explain.doc/doc/t0059594.html) There are different ways to generate an access plan, i.e., to explain a s...
over 6 years ago in Db2 3 Not under consideration

Activity event monitor and CGTT

Usually section actuals after being prepared with explain_from_activity and db2exfmt has a section called “Runtime statistics for objects Used in Access Plan”. This section has valuable information for the problem analysis. If a Statement uses Cre...
over 3 years ago in Db2 1 Future consideration

Recommend/evaluate indexes – more information for each index

This is a point for tuning with indexes -> Tuning with indexes is still very common and useful. While using recommend and evaluate indexes it is possible to investigate each recommended index by updating USE_INDEX column in the table ADVISE_IND...
over 5 years ago in Db2 0 Not under consideration

Improve performance of SET INTEGRITY command through use of (intra partition) parallelism

SET INTEGRITY does currently not make use of intrapartition parallelism. SET INTEGRITY (with "checked" option) for large tables and/or tables with many foreign key and/or check constraints consumes a large amount of time while the table is not acc...
over 5 years ago in Db2 0 Delivered

Allow modification of column-organized columns

Currently, in column-organized tables you cannot alter or rename columns and you even cannot drop columns. The only allowed operation is to add a column. This renders the column-based-tables pretty useless because in a normal environment, it must ...
over 7 years ago in Db2 0 Not under consideration

ITC tables for pureScale

ITC are very useful to have table that have large batch deletes on it. Then space reclaim is a quite easy and fast task using REORG RECLAIM EXTENTS ONLY.
over 7 years ago in Db2 0 Not under consideration

ADMIN_MOVE_TABLE and db2look result in partition table column range definitions padding extra blank spaces when using config STRING_UNITS = CODEUNITS32

ADMIN_MOVE_TABLE and db2look need to be updated to properly support STRING_UNITS = CODEUNITS32. When running ADMIN_MOVE_TABLE on a partitioned table with the 'MOVE' option, or when running db2look, in an environment with the db cfg setting for STR...
4 months ago in Db2 / pureScale 1 Is a defect

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