Interested to Buy Any Domain ? << Click Here >> for more details...
Explain the difference between a data block, an extent and
a segment.
- 1 Answers
- 9526 Views
- Accenture, IBM, I also Faced
- E-Mail Answers
Answer / 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 |
what is correlated subquery
CAN AUNIVERSE BE LINKED TO MORE THAN ONE DATASOURCE?
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?
Are These Dff's Flexible?
What is the architectural difference between Oracle and SQL Server 2000? If I have 100 databases, how many instances get created when you use Oracle and how many get created when you use SQL Server?
i have marks in table,how to find total?
What are different types of transactions in ar? : oracle accounts receivable
What is supporting issues GL AP and AR?
What does coalescing a tablespace do?
Why more redos are generated when the oracle database is in begin backup mode?
My requirement is like in database some defects are present and i need to clean them.To be brief for example every employee should have active assigments.So for those records which are not having status as active or null ,i need to update the roecords using API with the correct value. Client will provide a flat file for the records whch are defected.So i need to run the API for those records (flat file)and update the data in database. So my question is how to handle this requirement.Is there any existing API for this purpose?If yes then please send me the NAME. How to update the records in the database using flatfile. Any pointer will be appreciated.Thanks in advance.
How to update the simple views?give me example?if the table having 100 records and created a view on this table. if i can update the table then how to update the views
Oracle General 
