IBM Data and AI Ideas Portal for Customers


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Db2 for z/OS

Showing 958

New DSNACCOX tablespace reorg threshold

Stored procedure DSNACCOX has thresholds for tablespace unclustered inserts (RRTUnclustInsPct) and page splits from updates (RRTIndRefLimit). These both cause fragmentation. However, there is no threshold for the sum of these two, even though many...
over 9 years ago in Db2 for z/OS 1 Not under consideration

Avoid CHECK PENDING when adding column with constraint

The ability to add a column to a table and at the same time specifying a check constraint, without having to run check data.The constraint should be "simple", i.e. only referencing the new column.The default value should off course satisfy the con...
over 9 years ago in Db2 for z/OS 1 Not under consideration

IFCID361 records should provide the names/stmt_id of the packages which are bound/rebound

The Tracerecords for IFCID 361 don't provide the package names for Bind/Rebind.
over 9 years ago in Db2 for z/OS 0 Not under consideration

Eliminate the need to bind a subprogram locally called by a stored procedure running remotely

Today there are different code pathes if a package is called remotely from a local program OR a local stored procedure. If the package is called by a stored procedure we get SQLCODE805 if no local package exists. Therefore we have the need to bind...
over 9 years ago in Db2 for z/OS 0 Future consideration

Enhance DB2 global health monitoring to include "sick DB2" scenario

Enhance DB2 global health monitoring to include "sick DB2" scenario encountered in PMR 34910,082,000. In that particular case, DDF work continued routing to the sick member, instead of to only healthy members, and our customers were severely impac...
over 9 years ago in Db2 for z/OS 1 Not under consideration

Class 2 In-DB2 CPU times are often zero

With DB2's current IFI implementation, class 2 times are updated when a class 2 event occurs. Consequently, when IFCID 148 is requested for a thread that is In-DB2, no CPU times can be seen until the SQL statement ends. IFCID 148 must reflect the ...
over 9 years ago in Db2 for z/OS 1 Not under consideration

Native SP needs to be dropped and recreate for SQL TABLE UDF changes

When SQL TABLE UDF is created and used by Native Mode SPs and the SQL logic in the function needs to be changed, the native SPs needed to be dropped and recreated for the logic to take effect.
over 9 years ago in Db2 for z/OS 0 Not under consideration

Reset an invalidated statement level optimization hint

If a statement level optimization hint was invalidated for whatever reason one has to repeat the whole process to get the same hint again.
over 9 years ago in Db2 for z/OS 1 Not under consideration

Convert PBR tablespace to PBG without an outage

Right now we have situations come up where applications and DBAs have created partition by range (PBR) tables, and there is a need later on to convert these to partition by growth (PBG). Currently there is no way to do this without dropping the ob...
over 9 years ago in Db2 for z/OS 0 Planned for future release

SQL performance is bad after V10 migrate.

Our customer migrated DB2 V10(NFM) from V8(NFM).In particular query,processing time took one minute in the case of DB2 V8,but DB2 V10 increased to 11 minutes. The VIEW has been used by the customer LEFT OUTER JOIN 50 times near internally.As a res...
over 9 years ago in Db2 for z/OS 1 Not under consideration

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