INTERVIEW QUESTIONS ORACLE PL-SQL DETAILS

Question: What is Sequences?

Answer: Sequences are used for generating sequence numbers without any overhead of locking. Drawback is that after generating a sequence number if the transaction is rolled back, then that sequence number is lost.

Sequences are used for generating sequence numbers without any overhead of locking. Drawback is that after generating a sequence number if the transaction is rolled back, then that sequence number is lost. Source: CoolInterview.com

Sequence is a database object used to generate unique sequential integer values.
Source: CoolInterview.com

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