Oracle database running out of space??

What happens when an Oracle database starts to run out of space?
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rgagli1Asked:
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Miguel Angel Perez MuñozCommented:
On tablespace or disk?
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sshah254Commented:
It runs, slow, does not do updates ... and if not fixed, one gets fired :-)
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Anthony PerkinsCommented:
>>Zones: MS SQL Server, Databases Miscellaneous, Sybase Database<<
Please request that the zones be changed to a more appropriate zone such as (no surprise):
http://www.experts-exchange.com/Database/Oracle/
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slightwv (䄆 Netminder) Commented:
Please clarify what you mean by 'run out of space'.

As Drashiel suggested:  This can mean many things.

I'm not sure how this will cause Oracle to run slow but it can cause the database to stop performing certain functions.  Worst case: Stop doing everything until more space is added.
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hraja77Commented:
nothing happens at all - everything will run as normal - UNTIL - the space on the o/s has actually run out !
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slightwv (䄆 Netminder) Commented:
>>UNTIL - the space on the o/s has actually run out !

That may or may not be true.  Until we know what the the asker actually means we cannot answer the question.

An example of where the OS has plenty of space and Oracle pieces don't work right:
Exceeding the capacity set by the database parameter db_recovery_file_dest_size

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OP_ZaharinCommented:
hi rgagli1,
- when talking about space, we have to cover the databases, tablespaces, and datafiles that closely related. Oracle database consists of logical storage units called tablespaces that consists of one or more files called datafiles. disk space from the OS is allocated to tablespaces. this is the area that database space and disk space are related.

- based on my early experience, when database space is in critical condition due to disk space, it's like domino-effect. some database function will be suspended, application operation such as insert or update might fail, record search will be very slow. depending on what transaction is running, you will see errors such as ORA-1650 (Unable to extend rollback segment), ORA-1653 (Unable to extend table), ORA-1654 (Unable to extent index), ORA-01536 (Space quota exceeded..) and many more.

- the recent years version of Oracle database however, automatically manages its space consumption, sends alerts on space problems, and recommends possible solutions. if you have Enterprise Manager installed, make use of it to monitor the said. without it, you have monitor the tablespaces on reqular basis using scripting. google around, there's plenty script available. the application DATA and INDEX tablespace are most likely heavily used.

- in summary: sufficient free space for the tablespaces prevents the database from critical error and data loss ;)
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