Friday, September 26, 2014

DATA DICTIONARY part2.

TECHNICAL SETTINGS :-
§To individually optimize the storage requirements and accessing behavior of database tables.
 Provides various features like – buffering, logging
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INDEX BUFFERING:-
nTo increase the performance when records from the table are read.
nThree types of buffering:
¨Full Buffering
¨Generic  Buffering

¨Single Record Buffering


Operations on Tables:-
SYNTAX:-
Syntax:
            UPDATE <target> SET <set1> <set 2> 
[WHERE <cond>]. 
Syntax:
       DELETE  FROM <TABLE NAME> WHERE <COND>

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