Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

datafile

Posted on 2011-02-21
7
Medium Priority
?
897 Views
Last Modified: 2012-05-11
I need to increase the size of a datafile but it is already at its maxsize. How do I increase the maxsize of a datafile so I can resize it.
0
Comment
Question by:msimons4
7 Comments
 
LVL 74

Accepted Solution

by:
sdstuber earned 1336 total points
ID: 34943550
ALTER DATABASE
  DATAFILE '/your/data/file/goes_here.dbf'
 AUTOEXTEND ON
   MAXSIZE 1234M;  -- adjust size to whatever you need
0
 
LVL 74

Assisted Solution

by:sdstuber
sdstuber earned 1336 total points
ID: 34943571
you can specify the maxsize in bytes  (no units)

or K, M, G, T, P, E  


kilobytes
megabytes
gigabytes
terabytes
petabytes
exabytes
0
 
LVL 18

Assisted Solution

by:sventhan
sventhan earned 332 total points
ID: 34943625
<  but it is already at its maxsize

What is your max size? Is autoextend on?

What is the block size of the DB?

0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 
LVL 74

Assisted Solution

by:sdstuber
sdstuber earned 1336 total points
ID: 34943667
also note, you can manually resize a datafile beyond it's maxsize.

the maxsize only applies to autoextend.

So, if your datafile is 1G max, you can resize it to 2G, but it won't autoextend because it's already beyond the max size
0
 

Author Comment

by:msimons4
ID: 34943737
Is it better to increase the maxsize of the datafile or just increase the size of the datafile
0
 
LVL 74

Assisted Solution

by:sdstuber
sdstuber earned 1336 total points
ID: 34943772
neither is "better" than the other, but I would probably increase the maxsize and then let the datafile autoextend as needed


you could resize it also if you know you'll need 100Mb  now and "maybe" 100Mb later, then set the maxsize 200Mb bigger and resize 100Mb now
0
 
LVL 78

Assisted Solution

by:slightwv (䄆 Netminder)
slightwv (䄆 Netminder) earned 332 total points
ID: 34946026
Just to add that extending datafiles is expensive.  If you let it autoextend you have no control when it happens and can take place during the busy times.

You should also set the NEXT size on autoextend to a decent size you it doesn't extend all the time.

0

Featured Post

Keep up with what's happening at Experts Exchange!

Sign up to receive Decoded, a new monthly digest with product updates, feature release info, continuing education opportunities, and more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Why doesn't the Oracle optimizer use my index? Querying too much data Most Oracle developers know that an index is useful when you can use it to restrict your result set to a small number of the total rows in a table. So, the obvious side…
When it comes to protecting Oracle Database servers and systems, there are a ton of myths out there. Here are the most common.
This video shows how to set up a shell script to accept a positional parameter when called, pass that to a SQL script, accept the output from the statement back and then manipulate it in the Shell.
Via a live example, show how to restore a database from backup after a simulated disk failure using RMAN.
Suggested Courses

963 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question