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Full support for aggregate function with DISTINCT in OLAP SPECIFICATION
Use of DISTINCT with e.g. COUNT function in OLAP specification (PARTITION BY clause) returns error SQL0441N (SQLCODE -441).Due to the fact that Db2 does NOT support the use of DISTINCT option in such cases, we have a major impact with COGNOS gener...
Functions for converting Unix Epoch Time and Dealing with RHEL 8 Native Posix MQ
SQL scalar functions for Converting between human-readable date/time and Unix Epoch Time. For example:db2 "values ept2date(123456789,0)" is equivalent to Linux GNU date commanddate -d "1970-01-01 1234567890 sec UTCdb2 "values "date2ept('now')"is e...
Currently on Db2 LUW CREATE OR REPLACE is only allowed for the owner of a database object. CREATE OR REPLACE authorization should be opened up to allow create/replace by anyone who has the ability to drop the object and to create the object with a...
Reorg pending after three ALTER TABLE statements is not useful in 24x7 environment
After three ALTER TABLE statements (depending on the clause, but an error can be forced by changing type from VARCHAR to CHAR ) table switches into reorg pending state. This state can only be resolved by an offline reorg.Additional problem is that...
Submitted on behalf of Gregor Hack (email@example.com).Customer would like to see DROP ... IF EXISTS functionality supported, similar to the way it is currently supported by SQL Server, MySQL, and Postgres.
Enabling readonly mode for database or user. (DB2 LUW)
Would like to see a db level and a user level parameter to enable readonly mode at database level or user level. Currently need to run set of statements to achieve this, which makes management difficult. A single statement to enable readonly mode...
DB2 optimizer in v10.5/v11.1 has still several weaknesses in generating correct plan when using RP tables, because it bases its plan only on global stats when partition (data and indexes) stats are available. Case TS001150102
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 ...
need to provide a RENAME SCHEMA statement (other database products provide this)
Need RENAME SCHEMA other databases other than DB2 LUW (i.e. MaxDB from SAP) provide a statement RENAME SCHEMA to rename a schema like a RENAME TABLESPACE/TABLE/INDEX. Needed on all supported operating systems.
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