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oracle 如何查看执行计划

2012-09-06 09:33 429 查看
[align=center]如何查看执行计划[/align]

执行计划是SQL调优的最基本方法,查看执行计划的方法很多,不过我经常偷懒直接用PLSQL DEV来F5一下就完事了,这样下去很多能力都要退化了,下面看一下有哪些办法直接查看执行计划。数了一下,简单列出的就有5种之多。

1、直接使用sqlplus系统参数:

SQL> set autotrace on explain
SQL> select * from dual;
D

-

X

Execution Plan

----------------------------------------------------------

Plan hash value: 272002086
--------------------------------------------------------------------------

| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |

--------------------------------------------------------------------------

| 0 | SELECT STATEMENT | | 1 | 2 | 2 (0)| 00:00:01 |

| 1 | TABLE ACCESS FULL| DUAL | 1 | 2 | 2 (0)| 00:00:01 |

--------------------------------------------------------------------------
SQL> set autotrace off

但是这样操作的结果是先执行SQL,再出执行计划,如果SQL耗时巨大,则不现实;

2、使用explain plan for语句:

SQL> explain plan for select * from dual;
Explained.
SQL> select * from table(DBMS_XPLAN.display);

Execution Plan

----------------------------------------------------------

Plan hash value: 2137789089
---------------------------------------------------------------------------------------------

| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |

---------------------------------------------------------------------------------------------

| 0 | SELECT STATEMENT | | 8168 | 16336 | 21 (0)| 00:00:01 |

| 1 | COLLECTION ITERATOR PICKLER FETCH| DISPLAY | | |

| |

---------------------------------------------------------------------------------------------

这样就可以在执行SQL之前查看执行计划了

3、启用SQL_TRACE跟踪所有后台进程活动:

全局参数设置:
..OracleHome/admin/SID/pfile中指定: SQL_TRACE = true (10g)

当前session中设置:
SQL> alter session set SQL_TRACE=true;
SQL> select * from dual;
SQL> alter session set SQL_TRACE=false;

对其他用户进行跟踪设置:
SQL> select sid,serial#,username from v$session where username='XXX';
SID SERIAL# USERNAME

------ ---------- ------------------

127 31923 A

128 54521 B
129 48940 B
SQL> exec dbms_system.set_SQL_TRACE_in_session(127,31923,true);
SQL> select * from dual;
SQL> exec dbms_system.set_SQL_TRACE_in_session(127,31923,false);

然后使用oracle自带的tkprof命令行工具格式化跟踪文件。

4、使用10046事件进行查询:

10046事件级别:
Lv1 - 启用标准的SQL_TRACE功能,等价于SQL_TRACE
Lv4 - Level 1 + 绑定值(bind values)
Lv8 - Level 1 + 等待事件跟踪
Lv12 - Level 1 + Level 4 + Level 8

全局设定:
..OracleHome/admin/SID/pfile中指定: EVENT="10046 trace name context forever,level 12"

当前session设定:
SQL> alter session set events '10046 trace name context forever, level 8';
SQL> select * from dual;
SQL> alter session set events '10046 trace name context off';

对其他用户进行设置:

SQL> select sid,serial#,username from v$session where username='XXX';
SID SERIAL# USERNAME

------ ---------- ------------------

127 31923 A

128 54521 B
129 48940 B

SQL> exec dbms_system.set_ev(127,31923,10046,8,'A');
SQL> select * from dual;
SQL> exec dbms_system.set_ev(127,31923,10046,0,'A');

5、使用tkprof格式化跟踪文件:

使用一下SQL找到当前session的跟踪文件:

---- 当前 session
SELECT d.value|| '/' ||lower(rtrim(i.instance, chr( 0 )))|| '_ora_' ||p.spid|| '.trc' trace_file_name
from
( select p.spid from v$mystat m,v$session s, v$process p
where m.statistic# = 1 and s.sid = m.sid and p.addr
= s.paddr) p,
( select t.instance from v$thread t,v$parameter v
where v.name = 'thread' and (v.value = 0 or t.thread#
= to_number(v.value))) i,
( select value from v$parameter where name = 'user_dump_dest' )
d;

---- 其他用户 session
SELECT d.value|| '/' ||lower(rtrim(i.instance, chr( 0 )))|| '_ora_' ||p.spid|| '.trc' trace_file_name
from
( select p.spid from v$session s, v$process p
where s.sid= '127' and s.
SERIAL#= '31923' and p.addr = s.paddr) p,
( select t.instance from v$thread t,v$parameter v
where v.name = 'thread' and (v.value = 0 or t.thread#
= to_number(v.value))) i,
( select value from v$parameter where name = 'user_dump_dest' )
d;

查找后使用tkprof命令:
SQL> $tkprof D:\......\SID_ora_5352.trc D:\......\SID_ora_5352.txt

注:9i中默认安装 无法使用 autotrace,需要手动安装:
SQL>start $ORACLE_HOME/rdbms/admin/utlxplan.sql;

SQL>create public synonym plan_table for plan_table;

SQL>grant ALL on plan_table to public;

附:ORACLE诊断事件
*********************************************************************************

Oracle为RDBMS提供了多种的诊断工具,诊断事件(Event)是其中一种常用、好用的方法,它使DBA可以方便的转储数据库各种结构及跟踪特定事件的发生.

一、Event的通常格式及分类

1、 通常格式如下:

EVENT="<事件名称><动作><跟踪项目><范围限定>"

2、 Event分类

诊断事件大体上可以分为四类:

a. 转储类事件:它们主要用于转储Oracle的一些结构,例如转储一下控制文件、数据文件头等内容。

b. 捕捉类事件:它们用于捕捉一些Error事件的发生,例如捕捉一下ORA-04031发生时一些Rdbms信息,以判断是Bug还是其它原因引起的这方面的问题。

c. 改变执行途径类事件:它们用于改主一些Oracle内部代码的执行途径,例如设置10269将会使Smon进程不去合并那些Free的空间。

d. 跟踪类事件:这们用于获取一些跟踪信息以用于Sql调优等方面,最典型的便是10046了,将会对Sql进行跟踪。

3、 说明:

a. 如果immediate放在第一个说明是无条件事件,即命令发出即转储到跟踪文件。

b. trace name位于第二、三项,除它们外的其它限定词是供Oracle内部开发组用的。

c. level通常位于1-10之间(10046有时用到12),10意味着转储事件所有的信息。例如当转储控制文件时,level1表示转储控制文件头,而level 10表明转储控制文件全部内容。

d. 转储所生成的trace文件在user_dump_dest初始化参数指定的位置。

二、说一说设置的问题了

可以在init.ora中设置所需的事件,这将对所有会话期打开的会话进行跟踪,也可以用alter session set event 等方法设置事件跟踪,这将打开正在进行会话的事件跟踪。

1、 在init.ora中设置跟踪事件的方法

a. 语法

EVENT=”event 语法|,level n|:event 语法|,level n|…”

b. 举例

event=”10231 trace name context forever,level 10’

c. 可以这样设置多个事件:

EVENT="\

10231 trace name context forever, level 10:\

10232 trace name context forever, level 10"

2、 通过Alter session/system set events这种方法

举个例子大家就明白了

Example:

Alter session set events ‘immediate trace name controlf level 10’;

Alter session set events ‘immediate trace name blockdump level 112511416’; (*)

在oracle8x及之上的版本也有这样的语句:

Alter system dump datafile 13 block 15;实现的功能与(*)是类似的。

3、 使用DBMS_SYSTEM.SET_EV的方法

a. 过和定义如下

DBMS_SYSTEM.SET_EV(

SI Binary_integer,

SE Binary_integer,

EV Binary_integer,

LE Binary_integer,

NM Binary_integer);

SI: 即v$session中的sid

SE:即v$session中的serial#

EV:要设置的事件

LE:要设置事件的级别

NM:名称

b. 举个例子,以10046为例

SQL> EXECUTE SYS.DBMS_SYSTEM.SET_EV(sid,serial#,10046,12,'');

4、 使用Oradebug来设置诊断事件的方法

同样举个例子大家就明白了:

a. 找到spid

SQL>select username, sid, serial#, paddr from v$session where username='qiuyb';

USERNAME SID SERIAL# PADDR

--------------------------------------------------------

HRB3 265 910 C000000084435AD8

SQL>SELECT ADDR,PID,SPID FROM V$PROCESS WHERE ADDR= C000000084435AD8';

ADDR PID SPID

------------------------------------------

C000000084435AD8 91 4835

b. 设置事件,以10046为例

sqlplus /nolog

SQL>connect / as sysdba;

SQL>oradebug setospid 4835

SQL>oradebug unlimit   --不限制转储文件的大小

SQL> oradebug event 10046 trace name context forever,level 12 --设置事件进行sql跟踪

SQL> oradebug event 10046 trace name context off --关闭跟踪

注意不要用oradug去跟踪oracle的smon,pmon等几个进程,操作不当可能会杀掉这几个后台进和引起宕库。

三、你可能的问题

1、 我如何知道在系统中设置了哪些event?

回答:

a. 如果你的事件是在init.ora中设置的可以用

SQL>show parameter event;

来查看

b. Michael R.Ault给的SQL

serveroutput on size 1000000

declare

event_level number;

begin

for i in 10000..10999 loop

sys.dbms_system.read_ev(i,event_level);

if (event_level > 0) then

dbms_output.put_line('Event '||to_char(i)||' set at level '||

to_char(event_level));

end if;

end loop;

end;

/

2、在oracle9i中使用spfile的那种如何设置诊断事件呢?

回答:

简单,Alter system命令就可以完成

alter system set event='10046 trace name context forever, level 12' scope=spfile;

重启一下就生效了。

3、坏了,我的9i设置完诊断事件,起不来了,报ORA-02194错怎么办?

回答:

那你一定是在使用Alter system时把某一项写错了,比如把context写成了conetxt了,可以做如下的解决:

a.由spfile生成pfile

SQL>create pfile from spfile;

File created.

b.编辑pfile以修正错误

Change... *.event='10046 trace name conetxt forever, level 12'

-to- *.event='10046 trace name context forever, level 12'

c.用pfile启动

SQL>startup pfile=/.....

d.重新生成 SPFILE.

SQL>create spfile from pfile;

File created.

Oracle诊断事件列表:
----------------------

ORA-10000: controlfile debug event, name 'control_file'

ORA-10001: controlfile crash event1

ORA-10002: controlfile crash event2

ORA-10003: controlfile crash event3

ORA-10004: controlfile crash event4

ORA-10005: trace latch operations for debugging

ORA-10006: testing - block recovery forced

ORA-10007: log switch debug crash after new log select, thread

ORA-10008: log switch debug crash after new log header write, thread

ORA-10009: log switch debug crash after old log header write, thread

ORA-10010: Begin Transaction

ORA-10011: End Transaction

ORA-10012: Abort Transaction

ORA-10013: Instance Recovery

ORA-10014: Roll Back to Save Point

ORA-10015: Undo Segment Recovery

ORA-10016: Undo Segment extend

ORA-10017: Undo Segment Wrap

ORA-10018: Data Segment Create

ORA-10019: Data Segment Recovery

ORA-10020: partial link restored to linked list (KSG)

ORA-10021: latch cleanup for state objects (KSS)

ORA-10022: trace ktsgsp

ORA-10023: Create Save Undo Segment

ORA-10024: Write to Save Undo

ORA-10025: Extend Save Undo Segment

ORA-10026: Apply Save Undo

ORA-10027: Specify Deadlock Trace Information to be Dumped

ORA-10028: Dump trace information during lock / resource latch cleanup

ORA-10029: session logon (KSU)

ORA-10030: session logoff (KSU)

ORA-10031: sort debug event (S*)

ORA-10032: sort statistics (SOR*)

ORA-10033: sort run information (SRD*/SRS*)

ORA-10035: parse SQL statement (OPIPRS)

ORA-10036: create remote row source (QKANET)

ORA-10037: allocate remote row source (QKARWS)

ORA-10038: dump row source tree (QBADRV)

ORA-10039: type checking (OPITCA)

ORA-10040: dirty cache list

ORA-10041: dump undo records skipped

ORA-10042: trap error during undo application

ORA-10043: check consistency of owner/waiter/converter lists in KSQ

ORA-10044: free list undo operations

ORA-10045: free list update operations - ktsrsp, ktsunl

ORA-10046: enable SQL statement timing

ORA-10047: trace switching of sessions

ORA-10048: Undo segment shrink

ORA-10049: protect library cache memory heaps

ORA-10050: sniper trace

ORA-10051: trace OPI calls

ORA-10052: don't clean up obj$

ORA-10053: CBO Enable optimizer trace

ORA-10054: trace UNDO handling in MLS

ORA-10055: trace UNDO handing

ORA-10056: dump analyze stats (kdg)

ORA-10057: suppress file names in error messages

ORA-10058: use table scan cost in tab$.spare1

ORA-10059: simulate error in logfile create/clear

ORA-10060: CBO Enable predicate dump

ORA-10061: disable SMON from cleaning temp segment

ORA-10062: disable usage of OS Roles in osds

ORA-10063: disable usage of DBA and OPER privileges in osds

ORA-10064: thread enable debug crash level , thread

ORA-10065: limit library cache dump information for state object dump

ORA-10066: simulate failure to verify file

ORA-10067: force redo log checksum errors - block number

ORA-10068: force redo log checksum errors - file number

ORA-10069: Trusted Oracle test event

ORA-10070: force datafile checksum errors - block number

ORA-10071: force datafile checksum errors - file number

ORA-10072: protect latch recovery memory

ORA-10073: have PMON dump info before latch cleanup

ORA-10074: default trace function mask for kst

ORA-10075: CBO Disable outer-join to regular join conversion

ORA-10076: CBO Enable cartesian product join costing

ORA-10077: CBO Disable view-merging optimization for outer-joins

ORA-10078: CBO Disable constant predicate elimination optimization

ORA-10079: trace data sent/received via SQL*Net

ORA-10080: dump a block on a segment list which cannot be exchanged

ORA-10081: segment High Water Mark has been advanced

ORA-10082: free list head block is the same as the last block

ORA-10083: a brand new block has been requested from space management

ORA-10084: free list becomes empty

ORA-10085: free lists have been merged

ORA-10086: CBO Enable error if kko and qka disagree on oby sort

ORA-10087: disable repair of media corrupt data blocks

ORA-10088: CBO Disable new NOT IN optimization

ORA-10089: CBO Disable index sorting

ORA-10090: invoke other events before crash recovery

ORA-10091: CBO Disable constant predicate merging

ORA-10092: CBO Disable hash join

ORA-10093: CBO Enable force hash joins

ORA-10094: before resizing a data file

ORA-10095: dump debugger commands to trace file

ORA-10096: after the cross instance call when resizing a data file

ORA-10097: after generating redo when resizing a data file

ORA-10098: after the OS has increased the size of a data file

ORA-10099: after updating the file header with the new file size

ORA-10100: after the OS has decreased the size of a data file

ORA-10101: atomic redo write recovery

ORA-10102: switch off anti-joins

ORA-10103: CBO Disable hash join swapping

ORA-10104: dump hash join statistics to trace file

ORA-10105: CBO Enable constant pred trans and MPs w WHERE-clause

ORA-10106: CBO Disable evaluating correlation pred last for NOT IN

ORA-10107: CBO Always use bitmap index

ORA-10108: CBO Don't use bitmap index

ORA-10109: CBO Disable move of negated predicates

ORA-10110: CBO Try index rowid range scans

ORA-10111: Bitmap index creation switch

ORA-10112: Bitmap index creation switch

ORA-10113: Bitmap index creation switch

ORA-10114: Bitmap index creation switch

ORA-10115: CBO Bitmap optimization use maximal expression

ORA-10116: CBO Bitmap optimization switch

ORA-10117: CBO Disable new parallel cost model

ORA-10118: CBO Enable hash join costing

ORA-10119: QKA Disable GBY sort elimination

ORA-10120: generate relative file # different from absolute

ORA-10121: CBO Don't sort bitmap chains

ORA-10122: Disable transformation of count(col) to count(*)

ORA-10123: QKA Disable Bitmap And-EQuals

ORA-10124: Force creation of segmented arrays by kscsAllocate

ORA-10125: Disable remote sort elimination

ORA-10126: Debug oracle java xa

ORA-10127: Disable remote query block operation

ORA-10128: Dump Partition Pruning Information

ORA-10129: Alter histogram lookup for remote queries

ORA-10130: sort disable readaheads

ORA-10131: use v$sql_plan code path for explain plan

ORA-10132: dump plan after compilation

ORA-10133: testing for SQL Memory Management

ORA-10134: tracing for SQL Memory Management for session

ORA-10135: CBO do not count 0 rows partitions

ORA-10136: CBO turn off fix for bug 1089848

ORA-10137: CBO turn off fix for bug 1344111

ORA-10138: CBO turn off fix for bug 1577003

ORA-10139: CBO turn off fix for bug 1386119

ORA-10140: CBO turn off fix for bug 1332980

ORA-10141: CBO disable additional keys for inlist in bitmap optimization

ORA-10142: CBO turn off advanced OR-expansion checks

ORA-10143: CBO turn off hints

ORA-10144: CBO turn off cost based selection of bji over bsj subquery

ORA-10145: test auditing network errors

ORA-10146: enable Oracle TRACE collection

ORA-10147: enable join push through UNION view

ORA-10148: Use pre-7.3.3 random generator

ORA-10149: allow the creation of constraints with illegal date constants

ORA-10150: import exceptions

ORA-10151: Force duplicate dependency removal

ORA-10152: CBO don't consider function costs in plans

ORA-10153: Switch to use public synonym if private one does not translate

ORA-10154: Switch to disallow synonyms in DDL statements

ORA-10155: CBO disable generation of transitive OR-chains

ORA-10156: CBO disable index fast full scan

ORA-10157: CBO disable index access path for in-list

ORA-10158: CBO preserve predicate order in post-filters

ORA-10159: CBO disable order-by sort pushdown into domain indexes

ORA-10160: CBO disable use of join index

ORA-10161: CBO recursive semi-join on/off-switch

ORA-10162: CBO join-back elimination on/off-switch

ORA-10163: CBO join-back elimination on/off-switch

ORA-10164: CBO disable subquery-adjusted cardinality fix

ORA-10165: mark session to be aborted during shutdown normal

ORA-10166: trace long operation statistics updates

ORA-10167: CBO use old index MIN/MAX optimization

ORA-10168: CBO disable single-table predicate predicate generation

ORA-10169: CBO disable histograms for multi partitions

ORA-10170: CBO use old bitmap costing

ORA-10171: CBO disable transitive join predicates

ORA-10172: CBO force hash join back

ORA-10173: CBO no constraint-based join-back elimination

ORA-10174: view join-back elimination switch

ORA-10175: CBO star transformation switch

ORA-10176: CBO colocated join switch

ORA-10177: CBO colocated join switch

ORA-10178: CBO turn off hash cluster filtering through memcmp

ORA-10179: CBO turn off transitive predicate replacement

ORA-10180: temp table transformation print error messages

ORA-10181: CBO disable multi-column in-list processing

ORA-10182: CBO disable generation of implied predicates

ORA-10183: CBO disable cost rounding

ORA-10184: CBO disable OR-exp if long inlist on bitmap column

ORA-10185: CBO force index joins

ORA-10186: CBO disable index join

ORA-10187: CBO additional index join switch

ORA-10188: CBO additional index join switch

ORA-10189: CBO turn off FFS null fix

ORA-10190: Analyze use old frequency histogram collection and density

ORA-10191: Avoid conversion of in-lists back to OR-expanded form

ORA-10192: nopushdown when number of groups exceed number of rows

ORA-10193: Force repeatable sampling with specified seed

ORA-10194: CBO disable new LIKE selectivity heuristic

ORA-10195: CBO don't use check constraints for transitive predicates

ORA-10196: CBO disable index skip scan

ORA-10197: CBO force index skip scan

ORA-10198: check undo record

ORA-10199: set parameter in session

ORA-10200: consistent read buffer status

ORA-10201: consistent read undo application

ORA-10202: consistent read block header

ORA-10203: block cleanout

ORA-10204: signal recursive extend

ORA-10205: row cache debugging

ORA-10206: transaction table consistent read

ORA-10207: consistent read transactions' status report

ORA-10208: consistent read loop check

ORA-10209: enable simulated error on controlfile

ORA-10210: check data block integrity

ORA-10211: check index block integrity

ORA-10212: check cluster integrity

ORA-10213: crash after controlfile write

ORA-10214: simulate write errors on controlfile

ORA-10215: simulate read errors on controlfile

ORA-10216: dump controlfile header

ORA-10217: debug sequence numbers

ORA-10218: dump uba of applied undo

ORA-10219: monitor multi-pass row locking

ORA-10220: show updates to the transaction table

ORA-10221: show changes done with undo

ORA-10222: row cache

ORA-10223: transaction layer - turn on verification codes

ORA-10224: index block split/delete trace

ORA-10225: free/used extent row cache

ORA-10226: trace CR applications of undo for data operations

ORA-10227: verify (multi-piece) row structure

ORA-10228: trace application of redo by kcocbk

ORA-10229: simulate I/O error against datafiles

ORA-10230: check redo generation by copying before applying

ORA-10231: skip corrupted blocks on _table_scans_

ORA-10232: dump corrupted blocks symbolically when kcbgotten

ORA-10233: skip corrupted blocks on index operations

ORA-10234: trigger event after calling kcrapc to do redo N times

ORA-10235: check memory manager internal structures

ORA-10236: library cache manager

ORA-10237: simulate ^C (for testing purposes)

ORA-10238: instantiation manager

ORA-10239: multi-instance library cache manager

ORA-10240: dump dba's of blocks that we wait for

ORA-10241: remote SQL execution tracing/validation

ORA-10242: suppress OER 2063 (for testing distrib w/o different error log)

ORA-10243: simulated error for test of K2GTAB latch cleanup

ORA-10244: make tranids in error msgs print as 0.0.0 (for testing)

ORA-10245: simulate lock conflict error for testing PMON

ORA-10246: print trace of PMON actions to trace file

ORA-10247: Turn on scgcmn tracing. (VMS ONLY)

ORA-10248: turn on tracing for dispatchers

ORA-10249: turn on tracing for multi-stated servers

ORA-10250: Trace all allocate and free calls to the topmost SGA heap

ORA-10251: check consistency of transaction table and undo block

ORA-10252: simulate write error to data file header

ORA-10253: simulate write error to redo log

ORA-10254: trace cross-instance calls

ORA-10255: pl/sql parse checking

ORA-10256: turn off shared server load balancing

ORA-10257: trace shared server load balancing

ORA-10258: force shared servers to be chosen round-robin

ORA-10259: get error message text from remote using explicit call

ORA-10260: Trace calls to SMPRSET (VMS ONLY)

ORA-10261: Limit the size of the PGA heap

ORA-10262: Don't check for memory leaks

ORA-10263: Don't free empty PGA heap extents

ORA-10264: Collect statistics on context area usage (x$ksmcx)

ORA-10265: Keep random system generated output out of error messages

ORA-10266: Trace OSD stack usage

ORA-10267: Inhibit KSEDMP for testing

ORA-10268: Don't do forward coalesce when deleting extents

ORA-10269: Don't do coalesces of free space in SMON

ORA-10270: Debug shared cursors

ORA-10271: distributed transaction after COLLECT

ORA-10272: distributed transaction before PREPARE

ORA-10273: distributed transaction after PREPARE

ORA-10274: distributed transaction before COMMIT

ORA-10275: distributed transaction after COMMIT

ORA-10276: distributed transaction before FORGET

ORA-10277: Cursor sharing (or not) related event (used for testing)

ORA-10278: Internal testing

ORA-10279: Simulate block corruption in kdb4chk

ORA-10280: Internal testing - segmentation fault during crash recovery

ORA-10281: maximum time to wait for process creation

ORA-10282: Inhibit signalling of other backgrounds when one dies

ORA-10283: simulate asynch I/O never completing

ORA-10284: simulate zero/infinite asynch I/O buffering

ORA-10285: Simulate controlfile header corruption

ORA-10286: Simulate controlfile open error

ORA-10287: Simulate archiver error

ORA-10288: Do not check block type in ktrget

ORA-10289: Do block dumps to trace file in hex rather than fromatted

ORA-10290: kdnchk - checkvalid event - not for general purpose use.

ORA-10291: die in tbsdrv to test controlfile undo

ORA-10292: dump uet entries on a 1561 from dtsdrv

ORA-10293: dump debugging information when doing block recovery

ORA-10294: enable PERSISTENT DLM operations on non-compliant systems

ORA-10295: die after file header update durning cf xact

ORA-10296: disable ORA-379

ORA-10297: customize dictionary object number cache

ORA-10298: ksfd i/o tracing

ORA-10299: Trace prefetch tracking decisions made by CKPT

ORA-10300: disable undo compatibility check at database open

ORA-10301: Enable LCK timeout table consistency check

ORA-10302: trace create or drop internal trigger

ORA-10303: trace loading of library cache for internal triggers

ORA-10304: trace replication trigger

ORA-10305: trace updatable materialized view trigger

ORA-10306: trace materialized view log trigger

ORA-10307: trace RepCat execution

ORA-10308: replication testing event

ORA-10309: Trigger Debug event

ORA-10310: trace synchronous change table trigger

ORA-10311: Disable Flashback Table Timestamp checking

ORA-10312: Allow disable to log rows into the mapping table

ORA-10313: Allow Row CR operations for single instance

ORA-10314: Enable extra stats gathering for CR

ORA-10316: Events for extensible txn header, non zero ext header size

ORA-10317: Events for extensible txn header, zero ext header size

ORA-10318: Trace extensible txn header movements

ORA-10319: Trace PGA statistics maintenance

ORA-10320: Enable data layer (kdtgrs) tracing of space management calls

ORA-10321: Datafile header verification debug failure.

ORA-10322: CBO don't simplify inlist predicates

ORA-10323: before committing an add datafile command

ORA-10324: Enable better checking of redo logs errors

ORA-10325: Trace control file record section expand and shrink operations

ORA-10326: clear logfile debug crash at , log

ORA-10327: simulate ORA-00235 error for testing

ORA-10328: disable first-to-mount split-brain error, for testing

ORA-10329: simulate lost write, test detection by two-pass recovery

ORA-10330: clear MTTR statistics in checkpoint progress record

ORA-10331: simulate resilvering during recovery

ORA-10332: force ALTER SYSTEM QUIESCE RESTRICTED command to fail

ORA-10333: dump MTTR statistics each time it is updated

ORA-10334: force FG to wait to be killed during MTTR advisory simulation

ORA-10336: Do remote object transfer using remote SQL

ORA-10337: enable padding owner name in slave sql

ORA-10338: CBO don't use inlist iterator with function-based indexes

ORA-10339: CBO disable DECODE simplification

ORA-10340: Buffer queues sanity check for corrupted buffers

ORA-10341: Simulate out of PGA memory in DBWR during object reuse

ORA-10342: Raise unknown exception in ACQ_ADD when checkpointing

ORA-10343: Raise an out of memory exception-OER 4031 in ACQ_ADD

ORA-10344: Simulate kghxal returning 0 in ACQ_ADD but no exception

ORA-10345: validate queue when linking or unlinking a buffer

ORA-10346: check that all buffers for checkpoint have been written

ORA-10347: dump active checkpoint entries and checkpoint buffers

ORA-10348: test abnormal termination of process initiating file checkpoint

ORA-10349: do not allow ckpt to complete

ORA-10350: Simulate more than one object & tsn id in object reuse

ORA-10351: size of slots

ORA-10352: report direct path statistics

ORA-10353: number of slots

ORA-10354: turn on direct read path for parallel query

ORA-10355: turn on direct read path for scans

ORA-10356: turn on hint usage for direct read

ORA-10357: turn on debug information for direct path

ORA-10358: Simulate out of PGA memory in cache advisory reset

ORA-10359: turn off updates to control file for direct writes

ORA-10360: enable dbwr consistency checking

ORA-10365: turn on debug information for adaptive direct reads

ORA-10370: parallel query server kill event

ORA-10371: disable TQ hint

ORA-10372: parallel query server kill event proc

ORA-10373: parallel query server kill event

ORA-10374: parallel query server interrupt (validate lock value)

ORA-10375: turn on checks for statistics rollups

ORA-10376: turn on table queue statistics

ORA-10377: turn off load balancing

ORA-10378: force hard process/range affinity

ORA-10379: direct read for rowid range scans (unimplemented)

ORA-10380: kxfp latch cleanup testing event

ORA-10381: kxfp latch cleanup testing event

ORA-10382: parallel query server interrupt (reset)

ORA-10383: auto parallelization testing event

ORA-10384: parallel dataflow scheduler tracing

ORA-10385: parallel table scan range sampling method

ORA-10386: parallel SQL hash and range statistics

ORA-10387: parallel query server interrupt (normal)

ORA-10388: parallel query server interrupt (failure)

ORA-10389: parallel query server interrupt (cleanup)

ORA-10390: Trace parallel query slave execution

ORA-10391: trace PX granule allocation/assignment

ORA-10392: parallel query debugging bits

ORA-10393: print parallel query statistics

ORA-10394: generate a fake load to test adaptive and load balancing

ORA-10395: adjust sample size for range table queues

ORA-10396: circumvent range table queues for queries

ORA-10397: suppress verbose parallel coordinator error reporting

ORA-10398: enable timeouts in parallel query threads

ORA-10399: trace buffer allocation

ORA-10400: turn on system state dumps for shutdown debugging

ORA-10401: turn on IPC (ksxp) debugging

ORA-10402: turn on IPC (skgxp) debugging

ORA-10403: fake CPU number for default degree of parallelism

ORA-10404: crash dbwr after write

ORA-10405: emulate broken mirrors

ORA-10406: enable datetime TIMESTAMP, INTERVAL datatype creation

ORA-10407: enable datetime TIME datatype creation

ORA-10408: disable OLAP builtin window function usage

ORA-10409: enable granule memset and block invalidation at startup

ORA-10410: trigger simulated communications errors in KSXP

ORA-10411: simulate errors in IMR

ORA-10412: trigger simulated errors in CGS/CM interface

ORA-10413: force simulated error for testing purposes

ORA-10414: simulated error from event level

ORA-10425: enable global enqueue service open event trace

ORA-10426: enable global enqueue service convert event trace

ORA-10427: enable global enqueue service traffic controller event trace

ORA-10428: enable tracing of global enqueue service distributed resource

ORA-10429: enable tracing of global enqueue service IPC calls

ORA-10430: enable tracing of global enqueue service AST calls

ORA-10431: enable verification messages on pi consistency

ORA-10432: enable tracing of global cache service fusion calls

ORA-10433: global enqueue service testing event

ORA-10434: enable tracing of global enqueue service multiple LMS

ORA-10435: enable tracing of global enqueue service deadlock detetction

ORA-10436: enable global cache service duplicate ping checking

ORA-10437: enable trace of global enqueue service S optimized resources

ORA-10442: enable trace of kst for ORA-01555 diagnostics

ORA-10450: signal ctrl-c in kdddca (drop column) after n rows

ORA-10496: Turn off fix for bug 2554178

ORA-10498: Trim blank characters including contol characters

ORA-10499: revert to old scale behaviour

ORA-10500: turn on traces for SMON

ORA-10501: periodically check selected heap

ORA-10502: CBO disable the fix for bug 2098120

ORA-10503: enable user-specified graduated bind lengths

ORA-10504: CBO disable the fix for bug 2607029

ORA-10510: turn off SMON check to offline pending offline rollback segment

ORA-10511: turn off SMON check to cleanup undo dictionary

ORA-10512: turn off SMON check to shrink rollback segments

ORA-10513: turn off wrap source compression

ORA-10515: turn on event to use physical cleanout

ORA-10520: recreate package/procedure/view only if definition has changed

ORA-10550: signal error during create as select/create index after n rows

ORA-10560: block type ''

ORA-10561: block type '', data object#

ORA-10562: Error occurred while applying redo to data block (file# , block# )

ORA-10563: Test recovery had to corrupt data block (file# , block# ) in order to proceed

ORA-10564: tablespace

ORA-10565: Another test recovery session is active

ORA-10566: Test recovery has used all the memory it can use

ORA-10567: Redo is inconsistent with data block (file# , block# )

ORA-10568: Failed to allocate recovery state object: out of SGA memory

ORA-10570: Test recovery complete

ORA-10571: Test recovery canceled

ORA-10572: Test recovery canceled due to errors

ORA-10573: Test recovery tested redo from change to

ORA-10574: Test recovery did not corrupt any data block

ORA-10575: Give up restoring recovered datafiles to consistent state: out of memory

ORA-10576: Give up restoring recovered datafiles to consistent state: some error occurred

ORA-10577: Can not invoke test recovery for managed standby database recovery

ORA-10578: Can not allow corruption for managed standby database recovery

ORA-10579: Can not modify control file during test recovery

ORA-10580: Can not modify datafile header during test recovery

ORA-10581: Can not modify redo log header during test recovery

ORA-10582: The control file is not a backup control file

ORA-10583: Can not recovery file renamed as missing during test recovery

ORA-10584: Can not invoke parallel recovery for test recovery

ORA-10585: Test recovery can not apply redo that may modify control file

ORA-10586: Test recovery had to corrupt 1 data block in order to proceed

ORA-10587: Invalid count for ALLOW n CORRUPTION option

ORA-10588: Can only allow 1 corruption for normal media/standby recovery

ORA-10589: Test recovery had to corrupt data blocks in order to proceed

ORA-10590: kga (argus debugger) test flags

ORA-10591: kga (argus debugger) test flags

ORA-10592: kga (argus debugger) test flags

ORA-10593: kga (argus debugger) test flags

ORA-10594: kga (argus debugger) test flags

ORA-10595: kga (argus debugger) test flags

ORA-10596: kga (argus debugger) test flags

ORA-10597: kga (argus debugger) test flags

ORA-10598: kga (argus debugger) test flags

ORA-10599: kga (argus debugger) test flags

ORA-10600: check cursor frame allocation

ORA-10601: turn on debugging for cursor_sharing (literal replacement)

ORA-10602: cause an access violation (for testing purposes)

ORA-10603: cause an error to occur during truncate (for testing purposes)

ORA-10604: trace parallel create index

ORA-10605: enable parallel create index by default

ORA-10606: trace parallel create index

ORA-10607: trace index rowid partition scan

ORA-10608: trace create bitmap index

ORA-10609: trace for array index insertion

ORA-10610: trace create index pseudo optimizer

ORA-10611: causes migration to fail - testing only

ORA-10612: prints debug information for auto-space managed segments

ORA-10613: prints debug information for auto-space managed segments

ORA-10614: Operation not allowed on this segment

ORA-10615: Invalid tablespace type for temporary tablespace

ORA-10616: Operation not allowed on this tablespace

ORA-10617: Cannot create rollback segment in dictionary managed tablespace

ORA-10618: Operation not allowed on this segment

ORA-10619: Avoid assertions when possible

ORA-10620: Operation not allowed on this segment

ORA-10621: data block does not belong to the segment

ORA-10622: test/trace online index (re)build

ORA-10623: Enable Index range scan Prefetch - testing only

ORA-10624: Disable UJV invalidation on drop index

ORA-10625: Turn off redo log dump for the index when OERI 12700

ORA-10627: Dump the content of the index leaf block

ORA-10628: Turn on sanity check for kdiss index skip scan state

ORA-10640: Operation not permitted during SYSTEM tablespace migration

ORA-10641: Cannot find a rollback segment to bind to

ORA-10642: Found rollback segments in dictionary managed tablespaces

ORA-10643: Database should be mounted in restricted mode and Exclusive mode

ORA-10644: SYSTEM tablespace cannot be default temporary tablespace

ORA-10645: Recursive Extension in SYSTEM tablespace during migration

ORA-10646: Too many recursive extensions during SYSTEM tablespace migration

ORA-10647: Tablespace other than SYSTEM,, not found in read only mode

ORA-10650: disable cache-callback optimisation

ORA-10651: incorrect file number block number specified

ORA-10666: Do not get database enqueue name

ORA-10667: Cause sppst to check for valid process ids

ORA-10690: Set shadow process core file dump type (Unix only)

ORA-10691: Set background process core file type (Unix only)

ORA-10700: Alter access violation exception handler

ORA-10701: Dump direct loader index keys

ORA-10702: Enable histogram data generation

ORA-10703: Simulate process death during enqueue get

ORA-10704: Print out information about what enqueues are being obtained

ORA-10705: Print Out Tracing information for every I/O done by ODSs

ORA-10706: Print out information about global enqueue manipulation

ORA-10707: Simulate process death for instance registration

ORA-10708: print out trace information from the RAC buffer cache

ORA-10709: enable parallel instances in create index by default

ORA-10710: trace bitmap index access

ORA-10711: trace bitmap index merge

ORA-10712: trace bitmap index or

ORA-10713: trace bitmap index and

ORA-10714: trace bitmap index minus

ORA-10715: trace bitmap index conversion to rowids

ORA-10716: trace bitmap index compress/decompress

ORA-10717: trace bitmap index compaction trace for index creation

ORA-10718: event to disable automatic compaction after index creation

ORA-10719: trace bitmap index dml

ORA-10720: trace db scheduling

ORA-10721: Internal testing - temp table transformation

ORA-10722: set parameters for CPU frequency calculation (debug)

ORA-10723: Internal testing - release buffer for buffer cache shrink

ORA-10724: trace cross-instance broadcast

ORA-10730: trace row level security policy predicates

ORA-10731: dump SQL for CURSOR expressions

ORA-10740: disables fix for bug 598861

ORA-10750: test rollback segment blksize guessing for index array insert

ORA-10800: disable Smart Disk scan

ORA-10801: enable Smart Disk trace

ORA-10802: reserved for Smart Disk

ORA-10803: write timing statistics on cluster database recovery scan

ORA-10804: reserved for ksxb

ORA-10806: Switch to 7.3 mode when detaching sessions

ORA-10807: Disable user id check when switching to a global transaction

ORA-10810: Trace snapshot too old

ORA-10811: Trace block cleanouts

ORA-10812: Trace Consistent Reads

ORA-10826: enable upgrade/downgrade error message trace

ORA-10827: database must be opened with MIGRATE option

ORA-10830: Trace group by sort row source

ORA-10831: Trace group by rollup row source

ORA-10841: Default un-inintialized charact set form to SQLCS_IMPLICIT

ORA-10842: Event for OCI Tracing and Statistics Info

ORA-10850: Enable time manager tracing

ORA-10851: Allow Drop command to drop queue tables

ORA-10852: Enable tracing for Enqueue Dequeue Operations

ORA-10853: event for AQ statistics latch cleanup testing

ORA-10856: Disable AQ propagator from using streaming

ORA-10857: Force AQ propagator to use two-phase commit

ORA-10858: Crash the AQ propagator at different stages of commit

ORA-10859: Disable updates of message retry count

ORA-10860: event for AQ admin disable new name parser

ORA-10861: disable storing extended message properties

ORA-10862: resolve default queue owner to current user in enqueue/dequeue

ORA-10871: dump file open/close timestamp during media recovery

ORA-10900: extent manager fault insertion event #

ORA-10902: disable seghdr conversion for ro operation

ORA-10903: Force tablespaces to become locally managed

ORA-10904: Allow locally managed tablespaces to have user allocation

ORA-10905: Do cache verification (kcbcxx) on extent allocation

ORA-10906: Unable to extend segment after insert direct load

ORA-10907: Trace extent management events

ORA-10908: Trace temp tablespace events

ORA-10909: Trace free list events

ORA-10910: inject corner case events into the RAC buffer cache

ORA-10911: Locally managed SYSTEM tablespace bitmaps can be modified only under the supervision of Oracle Support

ORA-10912: Used to perform admin operations on locally managed SYSTEM tablespace

ORA-10913: Create locally managed database if compatible > 920 by default

ORA-10924: import storage parse error ignore event

ORA-10925: trace name context forever

ORA-10926: trace name context forever

ORA-10927: trace name context forever

ORA-10928: trace name context forever

ORA-10929: trace name context forever

ORA-10930: trace name context forever

ORA-10931: trace name context forever

ORA-10932: trace name context forever

ORA-10933: trace name context forever

ORA-10934: Reserved. Used only in version 7.x.

ORA-10935: Reserved. Used only in version 7.x.

ORA-10936: trace name context forever

ORA-10937: trace name context forever

ORA-10938: trace name context forever

ORA-10939: trace name context forever

ORA-10940: trace name context forever

ORA-10941: trace name context forever

ORA-10943: trace name context forever

ORA-10944: trace name context forever

ORA-10945: trace name context forever

ORA-10970: backout event for bug 2133357

ORA-10975: trace execution of parallel propagation

ORA-10976: internal package related tracing

ORA-10977: trace event for RepAPI

ORA-10979: trace flags for join index implementation

ORA-10980: prevent sharing of parsed query during Materialized View query generation

ORA-10981: dscn computation-related event in replication

ORA-10982: event to turn off CDC-format MV Logs

ORA-10983: event to enable Create_Change_Table debugging

ORA-10984: subquery materialized view-related event

ORA-10985: event for NULL refresh of materialized views

ORA-10986: donot use HASH_AJ in refresh

ORA-10987: event for the support of caching table with object feature

ORA-10988: event to get exclusive lock during materialized view refresh in IAS

ORA-10989: event to internally create statistics MV

ORA-10996: event to make a process hold a latch in ksu

ORA-10999: do not get database enqueue name

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