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Large partitioned table issue

Hi ... we're a mainframe V7 shop planning an imminent upgrade to V8. My
application team is converting an IMS DB into a DB/2 table ...
approximately 40GB of uncompressed (~20 GB compressed) data spread over
10 partitions. Approximately 35% of the data is "inactive" (easily
identifiable as such) and of limited (but some) use. We require 2
non-partitioning indexes on the data. The DBA group would like us to
put the "inactive" data into a separate table because of the sort
resource requirements to build the NPIs. Separating the data into two
tables would require application code to decide which table needs to be
accessed. Before agreeing to make application changes based on
operational requirements, I'd like some informed decisions as to
whether this should really be necessary and whether it will achieve
what the DBA group says it will.

Any takers?

Regards,
Steve Keanie
Ministry of Transport, Ontario

Aug 22 '06
11 1901

Mark A wrote:
While it is true that IMS can perform faster than DB2 in certain situations
(although not as many as you think), many DB2 schema changes can be made
while the system is running in production (even changes to existing tables),
and users and programmers can access the data without a extensive knowledge
of programming or DL/I.
Gee, I didn't realize DB2 could do all that ... is it, like, relational
too? Thanks for setting me straight, sonny! ;-)

Aug 23 '06 #11
<st**********@r ogers.comwrote in message
news:11******** *************@7 5g2000cwc.googl egroups.com...
>
Gee, I didn't realize DB2 could do all that ... is it, like, relational
too? Thanks for setting me straight, sonny! ;-)
You are welcome grandpa.
Aug 23 '06 #12

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