soccer_champ

• Jun 18th, 2005

 

A sequence is a database object created by a user that can be used to generate unique integers. A typical usage of sequences is to generate primary key values which are unique for each row.  
It is generated and incremented (or decremented) by an internal Oracle routine. It can be used by multiple users and for multiple tables too. A sequence can be used instead of writing an application code for sequence-generating routine. 
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ashu_641981

 Profile Answers by ashu_641981 

• May 24th, 2011

 

Sequences are special database objects that provide numbers in sequence for input to a table.