It is the set of before image data blocks that contain rows that are modified by a transaction.
Each Rollback Segment entry must be completed within one rollba...
Transaction Begins
An entry is made in the RBS header for new transactions entry
Transaction acquired blocks in an extent of RBS
The entry attempts to wrap i...
Querying the DBA_ROLLBACK_SEGS view
The status available as follows :
IN USE - Rollback Segment is on-line
AVAILABLE - Rollback Segment available bur not on-...
DDL (Data Definition Language) statements are used to define the database structure or schema. Some examples:
1. CREATE - to create objects in the database...
Each Non-clustered table has a data segment. All of the table's data is stored in the extents of its data segment. Each Eluster has a data segment. TheÂ...