Tip

Script to find the tablespaces within certain extents

The following script finds the tablespaces that can extent to a maximum of "ExtLimit". In this case, I didn't want any files to be more than 2 GB so I set MAXSIZE to 2 GB. Also, I did not include temp files in this script.

define 2GB = "2048 * 1024 * 1024" 
define ExtLimit = 5     --report if not enough space for at least these many extents 
set define on 
set trimspool on 
set verify off 
select  ts, to_char(nextB/1024/1024,'999G999G999D99') NextMB, 
        to_char(sum(trunc(FreeB/nextB) * NextB)/1024/1024, '999G999G999D99') maxAvailMB
        --trunc to get the size in Extent Boundary
        from 
                (select d.tablespace_name ts, 
                        d.increment_by * p.value NextB, 
                        ((CASE WHEN d.maxbytes >= &2GB THEN &2GB ELSE d.maxbytes END) - d.bytes + NVL(f.freebytes,0)) FreeB
                from    dba_data_files d, v$parameter p, 
                        (SELECT file_id, SUM(bytes) freebytes  FROM sys.dba_free_space  GROUP BY file_id) f 
                where   d.file_id = f.file_id(+) 
                AND p.name = 'db_block_size' 
        ) freeOnTS 
        group by ts, nextB 
        having sum(trunc(FreeB/nextB) * NextB) <= NextB * &ExtLimit 
/ 

For More Information

    Requires Free Membership to View

  • Feedback:
    E-mail the editor with your thoughts about this tip.
  • More tips: Hundreds of free Oracle tips and scripts.
  • Tip contest: Have an Oracle tip to offer your fellow DBAs and developers? The best tips submitted will receive a cool prize -- submit your tip today!
  • Ask the Experts: Our SQL, database design, Oracle, SQL Server, DB2, metadata, and data warehousing gurus are waiting to answer your toughest questions.
  • Forums: Ask your technical Oracle questions--or help out your peers by answering them--in our active forums.
  • Best Web Links: Oracle tips, tutorials, and scripts from around the Web.

This was first published in March 2003

There are Comments. Add yours.

 
TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
Sort by: OldestNewest

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to:

Disclaimer: Our Tips Exchange is a forum for you to share technical advice and expertise with your peers and to learn from other enterprise IT professionals. TechTarget provides the infrastructure to facilitate this sharing of information. However, we cannot guarantee the accuracy or validity of the material submitted. You agree that your use of the Ask The Expert services and your reliance on any questions, answers, information or other materials received through this Web site is at your own risk.