• About Me

    Maxwell Miranda
    Oracle DBA Consultant.
  • Category

  • Archives

  • My Blog Calendar

    August 2009
    M T W T F S S
        Sep »
  • RSS Oracle Feeds

    • Flashback database to date back and forth
      Code: --------- SELECT NAME, TIME FROM v$restore_point order by time; NAME TIME ---------------------------------------- ----------------------------------- RST_PNT_20180306_1135 06-MAR-18 AM *Got flashbacked to this 6th Mar* RST_PNT_20180308_0132 08-MAR-18 AM RST_PNT_20180315_0332 15-MAR-18 AM RST_PNT […]
    • Downgrade database from Oracle to Oracle using catdwgrd.sq
      Downgrade database from Oracle to Oracle Like to know if any one successfully downgraded the database from version Oracle 12cR2 ( Release 2) to Oracle 11g Release 2 ( using manual method of catdwgrd.sql. Please share your views and inputs as we are unable to downgrade it successfully. Refereed the https://docs.oracle.com/en/databa […]
    • New user in oracle having access to all tables
      Hi, I have created a new user in oracle database as follows create new user u1 identified by u1; grant create session to u1; when I login with new user ,it has access to all tables in other schema except system and sys tables. i want to create a user who does not have access to any table on any schema. how it can be achieved? Thanks
    • Auditing userid creation, deletion and changes to roles granted.
      Is there an oracle auditing option to audit userid creation, deletion and changes made to the userid (system/object privileges granted or revoked)?
    • ORACLE SQL - Adding Results from Multiple Select Statements
      I apologize if this question is not in the correct area. I have eight select statements, each to get the sum of particular information. These are not simple queries, so I will not include them here. I have made up a simpler version (based on some code I found in a forum) as shown below. So, I have eight sums. I need a ninth sum that is the total of all eight […]
    • Cannot change undo_tablespace parameter in RAC node
      Hi, I am trying to change the undo tablespace in DB instance, unsuccessfully. Approach 1: SQL> show parameter undo NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ temp_undo_enabled boolean FALSE undo_management string AUTO undo_retention integer 900 undo_tablespace string *UNDOTBS2* SQL> SQL> ALTER SYS […]
  • Advertisements

long running query

–Show queries in progress.
col opname for a25 trunc
col username for a15 trunc
col target for a20
col sid for 999999
col serial# for 999999
col %DONE for a8
select b.username,a.sid,b.opname,b.target,round(b.SOFAR*100 / b.TOTALWORK,0) || ‘%’ as “%DONE”,
b.TIME_REMAINING,to_char(b.start_time,’YYYY/MM/DD HH24:MI:SS’) START_TIME
from V$SESSION_LONGOPS b,V$SESSION a where a.sid=b.sid and TIME_REMAINING 0 order by b.SOFAR/b.TOTALWORK;

–variation on sql above
col opname for a25
col progress for a15
col progress for a8
select a.sid,b.username,b.opname,round(b.SOFAR*100 / b.TOTALWORK,0) || ‘%’ as progress,
b.TIME_REMAINING,b.target from V$SESSION_LONGOPS b,V$SESSION a where a.sid=b.sid and TIME_REMAINING 0 order by 5;

–show long operations.
column c4 heading “%age Completed” format 99,99.99
column TotalWork format a15
column ELAPSED_SECONDS format 99999
select username,sofar,totalwork||units “TotalWork”,(sofar/totalwork)*100 c4,to_char(start_time,’mm-dd-yyyy hh24:mi’) “Start_Time”,
elapsed_seconds,sql_address from V$SESSION_LONGOPS where sofar/totalwork < 1 order by elapsed_seconds;

–show long operations. it shows jobs that have finished too
set linesize 150
col username for a20
col target for a35
col opname for a25 trunc
col sid for 999999
col serial# for 999999
col sofar for 9999999
select a.username,b.sid,b.serial#,b.opname,b.target,b.sofar,b.totalwork,to_char(b.start_time,'HH24:MM:SS') START_TIME,
to_char(SYSDATE,'HH24:MM:SS') CURR_TIME from V$SESSION_LONGOPS b, V$SESSION a where a.sid=b.sid order by 8,9;


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: