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Currently you can create NOT ENFORCED primary keys but the optimizer will then always treat these as trusted. This causes problems when the constraint is violated but a filter includes all PK columns since the engine will return only one row even ...
To GRANT USAGE ON SEQUENCE there is only the old method with db2 grant usage on sequence sq_test to role <rolename>But i want to use schema-privileges, but there is not the function GRANT USAGEIN ON SCHEMA MYSCHEMA TO ROLE <rolename>; ...
Poor performance on DB2 V11.1 due to changes in build process
Some customers are noticing performance degradations moving from v105 ESE to v111 ESE on the same hardware.These degradations are most pronounced in OLTP workloads, with an emphasis on INSERT and UPDATE operations.Db2 Support has confirmed that th...
Automatic Lock-Escalation from Row- to Extent-Level
Db2 is mainly using row-level locking and tries to avoid lock-escalation to table-level. This behavior is helpful in most of Db2s use cases, but there are some particular situations when locking on a higher level than row would be beneficial. Cons...
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...
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...
There are many cases that a database on the purescale cluster is needed to move on non-purescale instance. for example,backup, development or DR system .
However, oracle does support this.
about 2 years ago
in Db2 / pureScale
Not under consideration
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