Database Journal
MS SQL Oracle DB2 Access MySQL PostgreSQL Sybase PHP SQL Etc SQL Scripts & Samples Links Database Forum

» Database Journal Home
» Database Articles
» Database Tutorials
MS SQL
Oracle
DB2
MS Access
MySQL
» RESOURCES
Database Tools
SQL Scripts & Samples
Links
» Database Forum
» Sitemap
Free Newsletters:
DatabaseDaily  
News Via RSS Feed


follow us on Twitter
Database Journal |DBA Support |SQLCourse |SQLCourse2
 

Featured Database Articles

SQL Scripts & Samples

Posted May 21, 2004

How long will a statement run? What is its I/O rate?

By DatabaseJournal.com Staff



>>Script Language and Platform: Oracle
The v$session_longops table is an excellent table to determine how long a statment will run. This query will give the the current operation and its target. The biggest feature of this query is that it shows the I/O rate of the operation.

Author: Shawn Ellinger


column ssid format 9999 heading SID
column opname format a15 Heading Operation
column target format a28 Heading Target
column es format 999.9 Heading "Time|Ran"
column tr format 999.90 Heading "Time|Left"
column pct format 990 Heading "PCT"
column RATE Heading "I/O |Rate/m" just right

select 
sid ssid, 
substr(OPNAME,1,15) opname,
target, 
trunc((sofar/totalwork)*100) pct, 
to_char(60*sofar*8192/(24*60*(last_update_time - start_time))/1024/1024/60, '9999.0')||'M' Rate,
elapsed_seconds/60 es,
time_remaining/60 tr
from v$session_longops 
where time_remaining > 0
order by start_time
/

Disclaimer: We hope that the information on these script pages is valuable to you. Your use of the information contained in these pages, however, is at your sole risk. All information on these pages is provided "as -is", without any warranty, whether express or implied, of its accuracy, completeness, or fitness for a particular purpose... Disclaimer Continued


Back to Database Journal Home



SQL Scripts & Samples Archives

Comment and Contribute

 


(Maximum characters: 1200). You have characters left.

 

 




Latest Forum Threads
SQL Scripts & Samples Forum
Topic By Replies Updated
sql help!! add 1 August 22nd, 11:58 AM
How To Combine These 2 Queries into 1 Query ? tarek_land 1 June 7th, 08:37 AM
solving query svibuk 1 February 3rd, 06:08 AM
converting from a character string to uniqueidentifier saturnius 4 January 4th, 05:56 AM