Skip to Main Content
Forums

SQL & PL/SQL

Announcement

For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle.com. Technical questions should be asked in the appropriate category. Thank you!

Bitmap index full scan

837448Feb 7 2011 — edited Feb 7 2011
What does a bitmap index full scan mean?
Please help me understand the explain plan below:

SELECT STATEMENT, GOAL = FIRST_ROWS Cost=204275 Cardinality=1
SORT AGGREGATE Cardinality=1
FILTER
FAST DUAL Cost=2 Cardinality=1
TABLE ACCESS BY INDEX ROWID Object owner=OWNR Object name=TABX Cost=204273 Cardinality=247 Bytes=39273
BITMAP CONVERSION TO ROWIDS
BITMAP INDEX FULL SCAN Object owner=OWNR Object name=TABX_LOG
Comments
Locked Post
New comments cannot be posted to this locked post.
Post Details
Locked on Mar 7 2011
Added on Feb 7 2011
3 comments
303 views