Database Administration2081.15 marksExtent and row chaining concepts
What is Extent? Explain Row chaining and Migration in brief.
What is Extent? Explain Row chaining and Migration in brief. [5]
An extent is a contiguous set (group) of data blocks allocated to a segment (such as a table or index) within a tablespace in Oracle database storage. When a segment needs more space, the database allocates a new extent. An extent is the next level of logical storage above a data block and below ...