-1
votes
0answers
20 views

How does one create subpartitions in a non-composite partition in Oracle

In Oracle, I have a non-partitioned table. I follow the following steps to partition it: Use DDL to create an empty, partitioned copy of the table for the interim table Exchange the partitions Drop ...
-1
votes
1answer
84 views

Oracle Partition Table Space Issue

I have a table with list partitions on it. When i insert data i see that all the partitions have default initial size of 8 MB and I also noticed that when i truncate full table and check size it still ...
3
votes
0answers
209 views

Should I group by and then join, or join and then group by?

(oracle's optimizer does the same thing for both approaches when just two tables are involved, thus my question involves three tables) Assume three tables t1, t2 and t3 with a pairwise 1:n ...
0
votes
0answers
121 views

XML errors while copying dependents during a redefinition to an interval partitioning scheme

I am partitioning an existing table. I used the following process: Checks DBMS_REDEFINITION.CAN_REDEF_TABLE(...); Successful Create duplicate table CREATE TABLE "USER"."MYTABLE_ONLINE" ( ...
5
votes
1answer
1k views

DROP PARTITION strategy using LIST-REF composite partitioning

We have a large Oracle 11gR2 instance with some tables that have recently become an annoyance when deleting data. This database powers a large optimization cluster that takes input metadata from the ...