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tables in different tablespace query slow site:asktom.oracle.com
One of our application has about 30 tables and table sizes are very different. Considering performance, some one suggests create tablespace for each table.
Furthermore, you can improve performance of queries that use an index by storing an index and its table in different tablespaces located on different disk ...
Additionally, it would be easy to modify the script to move TABLES to one tablespace and INDEXES to a different tablespace. The drawback to using this ...
I have a query which runs blazing fast in production but deadly slow in development, obviously my database have different parameters however both of them ...
2016年5月11日 — In the DBs where this table and tablespace have grown to such sizes, any (or many) query run against a object in that tablespace take a huge ...
So, when I execute the following queries, the query with old table runs a little ... You have to be careful in many cases that partitioning doesn't KILL YOU ...
What to do in case Performance of a production database goes slow Hi Tom ... well, typically -- select count(*) and from table will be on different lines.
will do a parallel 4 full tablespace on the table T_NAME. If T_name is "wide" this will be alot of data to scan. On the other hand: select /*+ NOPARALLEL ...
See how big they are now (select sum(bytes) from dba_segments where tablespace_name = 'USER_DATA' and segment_type = 'INDEX' ); 3) don't schedule rebuilds of ...
We are maintaining separate tablespaces for data and indexes. ... like if we make a table from another table by create table as select * from table and ...

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