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It doesn't have to necessarily be related to a standby database and dataguard.<br />
<br />
If can also just be a missing archived redo log for a normal database.<br />
<br />
In a nutshell:<br />
to perform a recovery you need EVERY archived redo log in sequence. &nbsp;If you are missing one, there is a gap. &nbsp;You cannot recover a database past the point of the mising archived redo log.
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It doesn't have to necessarily be related to a standby database and dataguard.

If can also just be a missing archived redo log for a normal database.

In a nutshell:
to perform a recovery you need EVERY archived redo log in sequence.  If you are missing one, there is a gap.  You cannot recover a database past the point of the mising archived redo log.

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What is actually log gap ?<br />
<br />
<br />
How we will find that &nbsp;?
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What is actually log gap ?


How we will find that  ?

log gap

Oracle is an object-relational database management system. It supports a large number of languages and application development frameworks. Its primary languages are SQL, PL/SQL and Java, but it also includes support for C and C++. Oracle also has its own enterprise modules and application server software.