Explain the difference between a data block, an extent and
a segment.
Answer Posted / kumar.s
Datablock, Extent and Segment
A segment is defined as any entity that consumes physical
storage space within the database.
Each Oracle segment is made up of contiguous chunks of
storage space in the database called extents. Every segment
must have at least one extent, but can have as many as 2
billion extents.
Each extent is itself made up of a collection of smaller
chunks of space called Oracle database blocks. The minimum
size of an extent is five database blocks.
The default size of these database blocks is set at
database creation, but Oracle 10g db can use multiple block
sizes within one db. The common database block sizes are
2KB, 4KB, 8KB, and 16KB.
| Is This Answer Correct ? | 10 Yes | 2 No |
Post New Answer View All Answers
How would you go about increasing the buffer cache hit ratio?
how to replace not in with not exist?
What is the importance of batch source set up in ar? : oracle accounts receivable
Explain accounting for invoice in advance and arrears. : oracle accounts receivable
i am working with OC 4.5 i have numbers in table in 10 row with some null values please tell me how to find total? Thanks
Explain the difference between $ORACLE_HOME and $ORACLE_BASE.
What is an Oracle database Full Backup?
What do you mean by Oracle MEDIA RECOVERY?
What is the difference between oracle media recovery and crash recovery?
What is the sql query to find the employee who has Nth maximum salary?
How to move the data from one flatfile to multiple staging tables?give me some examples? for example in po interface one flat file is there and multiple staging tables are there how can move it?please give me answer for this question?
What are different types of transactions in ar? : oracle accounts receivable
What is mrc and what is its use? : oracle accounts receivable
HOW TO GET THE ORGANIZATION TO ORGANIZATION DETAILS INFORMATION IN THE INVENTORY MODULE.THE REQUIREMENT IS FROMORG TOORG FROMINV TOINV ..
How many segment are present in Oracle Manufacturing