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Db2 Federation offers different types of wrappers to transfer data from a source database to a target database. For the federation from Db2 LUW to Oracle we tried the JDBC, NET8 and ODBC wrapper, but all wrappers process the rows one by one. To ge...
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
We use DB2 ,DB2 HADR and CDC in our production system. Now we can only use the DB2 HADR primary database as CDC source. DB2 HADR standby database can not support acting as CDC source now. So we hope add a new feature,ie : DB2 HADR Standby database...
Basically, federation is a client application of the data source, so what the database expose to client is seeable for federation. As for the hidden column, it's designed not visible to client, the hidden column is not able to be fetched from the ...
Temporal Table extension for Auditing and Interface Design
Add functionality to allow the use of temporal tables for auditing purposes by adding functionality like in Db2 for z/OS: - A column GENERATED ALWAYS AS (DATA CHANGE OPERATION)- ON DELTE ADD EXTRA ROW functionality to record who deleted a rowIn co...
almost 5 years ago
in Db2 / Security
Not under consideration
Online restore of a range partition. Db2 takes a lock on the whole table during the restore.
I have a range partition table with NO global indexes. The partitions have their own tablespaces. Db2 takes a Z lock on the whole table when restoring a single partition.We thought that we could restore a partition online and that all the other pa...
INSTANCE_MEMORY AUTOMATIC should be automatic, not calculated
The default value of the INSTANCE_MEMORY parameter is AUTOMATIC. The AUTOMATIC setting results in a value that is computed at database partition activation. This behavior is inflexible regarding dynamic memory changes e.g. for AIX LPARs. Today it ...
In order to complain with the Security Framework Controls of a product which uses Db2 connect SW the following requirement should be fullfilled: "Before applying the software and security updates, their legitimate source should be validated and in...
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