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 Memory Management  |  Question 77 of 114    Print  
When will be a segment released ?
 
When Segment is dropped.
When Shrink (RBS only)
When truncated (TRUNCATE used with drop storage option)



  
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 Related Questions

Latest Answer : Segments  The level of logical database storage above an extent is called a segment. A segment is a set of extents which have been allocated for a specific type of data structure, and all are stored in the same tablespace. For example, each table's ...
Answered by: Lachi on 2005-06-08 07:28:04For perticular transaction Alter system set rollback segment 'name'; For database, we can set in pfile. Rollback_segment='name' 
Latest Answer : In above answer one correction is there,  For perticular transaction we can use fallowing syntax.  >set transaction use rollback segment 'name' ...
Latest Answer : by using dictionaray view's called v$rollstat,dba_rollback_segs. ...
List the sequence of events when a large transaction that exceeds beyond its optimal value when an entry wraps and causes the rollback segment to expand into another extend.
Latest Answer : when ever changes happend to the database previous change will be there in the rollback segment. ...
Latest Answer : Segment is droppedOn shrinkOn truncation (TRUNCATE used with drop option) ...
 Data segment are the physical areas within a database block in which the data associated with tables and clusters are stored. 
 SET TRANSACTION USE ROLLBACK SEGMENT rbs_name. 
 A free extent is a collection of continuous free blocks in tablespace. When a segment is dropped its extents are reallocated and are marked as free. 
 It is used to set the optimal length of a rollback segment. 

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