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What is Data Block ?

ORACLE database's data is stored in data blocks. One data block corresponds to a specific number of bytes of physical database space on disk.

Asked by: Interview Candidate | Asked on: Sep 5th, 2004
Showing Answers 1 - 3 of 3 Answers
gaurav_varma

Answered On : Jan 10th, 2007

View all answers by gaurav_varma

Data Block:

At the finest level of granularity, Oracle stores data in data blocks (also called logical blocks, Oracle blocks, or pages). One data block corresponds to a specific number of bytes of physical database space on disk.

  
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C.Ramesh

Answered On : Oct 27th, 2007

Oracle Data Blocks is logical storage unit of Oracle and One Oracle Data Blocks containts multiple of Operating system Blocks. Data blocks contains contigous of Bytes.

  
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matabrez

Answered On : Jan 10th, 2011

View all answers by matabrez

Smallest logical of Oracle database. In Oracle 10g default data block size is 8192 byres means 8k.

Other data block size are 2k, 4k, 8k, 16k, 32k
We have only these available data blocks in oracle database.

  
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