Db2 for z/OS

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SQL Data Insights - no option to weight attributes for AI_COMMONALITY

For outlier detection weighting single attributes (columns) is key, since attributes in a given dataset negatively affect the outcome of AI_COMMONALITY as tests shown

7 months ago in Db2 for z/OS 0 Future consideration

9 VOTE

Modify the DSNJU003 utility to allow it to define anything stored in the Db2 BSDS

When creating and new Db2 member, we must bring it all the way up before we can create the bufferpools, size them, and set the thresholds. We would like the ability to defined them prior to starting the Db2 member/subsystem. When creating an alias...

almost 3 years ago in Db2 for z/OS 1 Not under consideration

6 VOTE

DISPLAY TERMINATED DUE TO INSUFFICIENT MESSAGE SPACE

Applications moving to the cloud have significantly increased the number of locations accessing Db2. Current limits within the -DISPLAY LOCATION command prevents the command from displaying all possible locations. This idea is to remove this limit...

almost 2 years ago in Db2 for z/OS 0 Planned for future release

18 VOTE

DGTT - declare and use in one SQL statement (basically, this RFE is extension to syntax and functionality of DGTT)

Sometimes we use DGTT to hold complex result sets with many columns. We must DECLARE the DGTT first… and then second, INSERT into the DGTT The DECLARE requires us to think about each column name and type if we list them explicitly.OR. We can DECLA...

over 5 years ago in Db2 for z/OS 3 Not under consideration

15 VOTE

Dynamic Plan Stability - Option to restabilize an invalidated query missing

We've got several SQL queries stabilized with dynamic plan stability. Reason is to prevent them from getting a bad accesspath. After operations like "ALTER TABLE ... ROTATE PARTITION..." the query is flagged to valid N in SYSIBM.SYSDYNQRY. Than we...

over 4 years ago in Db2 for z/OS 0 Not under consideration

2 VOTE

One-Fecht Index Scan for SELECT min(), max()

At the moment only a single SELECT min(a) or a SELECT max(a) uses a suitable index I(a, ...). When selecting both, min() and max(), a tablespace scan is used to determine the minimum and maximum value. With large tables this behaviour is very expe...

8 months ago in Db2 for z/OS 1 Not under consideration

11 VOTE

Allow for "OPTIMIZE FOR n ROWS" to be added to DELETE, UPDATE Statements

OPTIMIZE FOR 1 ROW can be added to SELECT SQL. One reason may be to influence the optimizer to chose one index over another, or to not perform a SORT with List Prefetch Adding OPTIMIZE FOR 1 ROW to a DELETE statement results in an error: EXPLAIN A...

over 3 years ago in Db2 for z/OS 1 Not under consideration

31 VOTE

Break-In for Mass-delete

Enhance the break-in-process so that it also applies for mass deletes and that these deletes can break in into PWFI-transactions bound with RELEASE(DEALLOCATE).

almost 10 years ago in Db2 for z/OS 2 Not under consideration

6 VOTE

Configure a user-defined value for disabling all IFI request and MONITOR trace processing after a number of abends

When a certain number of abends occurs, while processing IFI requests, processing of all IFI request and MONITOR trace is disabled, requiring an action from Db2 operator/system administrator to be resumed. Today this number of abends, that disable...

almost 2 years ago in Db2 for z/OS 8 Not under consideration

38 VOTE

RI support for tables with mixed encoding schemes

MR012908405 GGDB208012 GGDB207014

about 12 years ago in Db2 for z/OS 1 Not under consideration

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