Database Administrator (DBA) Question:

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What is a Sequence?

Database Administrator (DBA) Interview Question
Database Administrator (DBA) Interview Question

Answer:

A sequence generates a serial list of unique numbers for numerical columns of a database’s tables.

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Explain the difference between ARCHIVELOG mode and NOARCHIVELOG mode and the benefits and disadvantages to each.Give the stages of instance startup to a usable state where normal users may access it.