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icon6.gif sticky: Performances and tuning
By: Michel Cadot on Fri, 22 June 2007
10 33632 Wed, 11 August 2021 08:31
By: Michel Cadot
  any option for this query
10g
By: rnemkul on Thu, 28 July 2022
1 12040 Fri, 29 July 2022 00:25
By: Michel Cadot
  Time metrics in V$SQL don't add up
Oracle 19c SE2
By: Andrey_R on Wed, 20 July 2022
7 6902 Sat, 23 July 2022 07:52
By: Andrey_R
  Percentage of CPU utilization per instance
Oracle 11g, 12c
By: db_senior on Thu, 05 August 2021
5 18383 Sat, 23 July 2022 07:14
By: Andrey_R
  query tunning
oracle10g
By: arun888 on Wed, 11 May 2022
11 22516 Tue, 24 May 2022 06:26
By: John Watson
  excessive parsing ?
DB SE2 19.3.0.0.0
By: John Watson on Fri, 13 May 2022
2 14137 Sun, 15 May 2022 05:33
By: John Watson
  Re-Partitioning
19C
By: deepakdot on Mon, 02 May 2022
2 13695 Wed, 04 May 2022 02:06
By: deepakdot
  Correlated subquery iteration
DB 19.3 (unpatched)
By: John Watson on Fri, 18 February 2022
3 10125 Sat, 19 February 2022 05:46
By: Michel Cadot
  Long running queries
Oracle, 18.0.0.0.0, Linux
By: BalajiDBA on Mon, 04 October 2021
19 21329 Thu, 07 October 2021 23:14
By: BalajiDBA
  Slow Archive Apply in Physical Standby
Oracle EE 12.2 , Linux 7
By: Akmmhto on Tue, 07 September 2021
5 15553 Thu, 09 September 2021 02:44
By: John Watson
  The predicate prevents the optimizer from using indices efficiently
12.2
By: lisyloo12 on Fri, 23 July 2021
1 10470 Fri, 23 July 2021 13:04
By: John Watson
  SQL Access Advisor from SQL*Plus
Oracle 11g, 12c
By: db_senior on Sat, 03 July 2021
8 15070 Mon, 05 July 2021 12:35
By: db_senior
  Function blocking itself
Oracle, 12.1.0.2, Windows
By: patdev on Wed, 09 June 2021
1 7408 Wed, 09 June 2021 10:28
By: Michel Cadot
  Query running slow
19c
By: JackBauer on Wed, 31 March 2021
13 20673 Tue, 13 April 2021 05:17
By: JackBauer
  Cannot index temp table after inserting rows
Linux\Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
By: Andrey_R on Wed, 03 March 2021
2 8103 Wed, 03 March 2021 03:42
By: Andrey_R
  SQL ID changes Plan hash value
12c R1
By: JackBauer on Tue, 16 February 2021
5 12722 Fri, 26 February 2021 08:45
By: BlackSwan
  I/O performance problem
12c R1
By: JackBauer on Thu, 11 February 2021
2 7993 Fri, 12 February 2021 06:20
By: JackBauer
  Program is slower with Oracle12C compared to Oracle 11G
Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
By: LiorI on Wed, 13 January 2021
3 14401 Fri, 12 February 2021 06:15
By: Andrey_R
  TKPROF showing wrong totals for non-recursive statements
Oracle 12.1.0.2.0
By: Andrey_R on Thu, 11 February 2021
0 5784 Thu, 11 February 2021 06:19
By: Andrey_R
  ORA-12705: Cannot access NLS data files or invalid environment specified with jmeter test
Oracle Database 19.7, jmeter 5.3
By: estonolose on Tue, 01 December 2020
1 9709 Tue, 01 December 2020 21:27
By: BlackSwan
  SQL_Text on SQL Profile
Oracle Database 12c Enterprise Edition Release 12.2.0.1.0
By: wtolentino on Thu, 17 October 2019
2 16547 Sun, 22 November 2020 12:56
By: LNossov
icon11.gif DBMS_SQLTUNE.REPORT_SQL_DETAIL: html report issue
Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
By: piripicchio on Thu, 15 October 2020
0 7493 Thu, 15 October 2020 09:08
By: piripicchio
  Application Performance Issue
Oracle 11g,Linux 6
By: BalajiDBA on Sat, 10 October 2020
2 7886 Sat, 10 October 2020 03:18
By: Michel Cadot
  Bitmap join index
DB19.3
By: John Watson on Thu, 08 October 2020
0 6259 Thu, 08 October 2020 04:17
By: John Watson
  Scalar subquery merging
DB 19.x
By: John Watson on Tue, 29 September 2020
3 8471 Tue, 29 September 2020 13:43
By: Michel Cadot
  Different SQL ID for same SQL/HASH_VALUE
10.2.0.3, Solaris 5.9
By: suddhasatwa_bhaumik on Fri, 02 November 2012
11 44433 Mon, 28 September 2020 01:45
By: amujawane
  Physical read IO requests higher than total
12.2, Linux 64
By: pallen38 on Tue, 22 September 2020
6 9898 Tue, 22 September 2020 14:56
By: pallen38
  New to tuning
12c
By: mdarifdxb20 on Sun, 09 August 2020
1 9251 Sun, 09 August 2020 05:19
By: Michel Cadot
  DBMS_AUTO_SQLTUNE
CentOS 6.2 64-bit, Oracle11gR2 11.2.0.3.0
By: debrucer2 on Mon, 05 November 2012
3 21669 Sat, 04 July 2020 04:09
By: Jack Almond
icon14.gif Find Locking History
Oracle 11.2.0.4.0 enterprise, CentOS 7.2
By: weekend79 on Wed, 08 April 2020
6 17245 Wed, 08 April 2020 04:06
By: weekend79
  Increase page loading speed
By: mike05 on Thu, 05 March 2020
4 15557 Thu, 05 March 2020 10:23
By: Michel Cadot
  Oracle & Sybase on same host
RDBMS 12.2..0.1 on linux with sybase 15.5
By: evoradba on Wed, 12 February 2020
3 12114 Fri, 14 February 2020 12:17
By: evoradba
  Database performance tuning
Oracle 11g,Linux 6
By: BalajiDBA on Sun, 09 February 2020
3 11065 Sun, 09 February 2020 09:04
By: BalajiDBA
  Select query too slow
11.2.04 Windows 2012
By: rajesh_b on Tue, 10 December 2019
16 23397 Tue, 28 January 2020 10:57
By: Michel Cadot
  sqlID time for every Sql id execution
RDBMS 12.2..0.1 on linux
By: evoradba on Fri, 24 January 2020
2 11055 Sat, 25 January 2020 02:07
By: John Watson
  Database performance tuning (merged)
12c
By: mha2020 on Sat, 18 January 2020
3 12066 Sat, 18 January 2020 06:48
By: John Watson
  Top SQL and Top sessions
Oracle 11g,Oracle 12c, Linux
By: BalajiDBA on Thu, 14 November 2019
2 12129 Thu, 14 November 2019 07:55
By: cookiemonster
  Solution for database hung
Oracle 11.2.0.4,Linux 6
By: BalajiDBA on Fri, 25 October 2019
11 18919 Wed, 13 November 2019 07:52
By: BalajiDBA
  Disk file operations i/o
ORACLE 11.2.0.4 on HP-UX.
By: nimaz85 on Mon, 21 October 2019
4 17514 Mon, 21 October 2019 10:57
By: Michel Cadot
  queue management system
Developer 10g Database 10
By: shahzaib_4vip@hotmail.com on Sat, 07 September 2019
1 12163 Sat, 07 September 2019 06:36
By: Michel Cadot
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