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Error Cannot Fetch Last Explain Plan From Plan_table Dbms_xplan

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Connect with top rated Experts 25 Experts available now in Live! Each keyword either represents a logical group of plan table columns (such as PARTITION) or logical additions to the base plan table output (such as PREDICATE). PLAN_TABLE$ records are persistent for the duration of a session, so why doesn't EXPLAIN PLAN automatically commit? For some odd reason I thought that was a comment, and commented it out. this contact form

Optimizer has chosen to do FULL SCAN even if it has nice looking index TRANSACTIONSI. Just to spice things up, a logon trigger used ALTER SESSION SET CURRENT_SCHEMA to APP_SCHEMA for pretty much all database users. format Controls the level of details for the plan. This is the actual statement to execute: explain plan for Select * from tab1 join tab2 using (col1); 0 LVL 65 Overall: Level 65 Oracle Database 3 Message Active today https://www.experts-exchange.com/questions/28897774/Error-cannot-fetch-last-explain-plan-from-PLAN-TABLE.html

Error Cannot Fetch Plan For Statement_id Autotrace

SERIAL: Like TYPICAL except that the parallel information is not displayed, even if the plan executes in parallel. Personally I put a lot of hope on the last test with PARTITIONKEY reference DECLARE v_part char(7):='JUL2012'; BEGIN FOR REC IN (SELECT SGENERAL, count(1) FROM TRANSACTIONS PARTITION FOR (v_part) If you have not yet registered, you can register here.

I have been reading more and now see that when I run the following statement: SELECT PLAN_TABLE_OUTPUT FROM TABLE(DBMS_XPLAN.DISPLAY(NULL, 'HIL:test1','BASIC')); What would be the difference between the NULL and actually saying Anyway it looked something like this: SQL> select owner, object_name, object_type from dba_objects where object_name = 'PLAN_TABLE'; OWNER OBJECT_NAME OBJECT_TYPE ------------------------------ ----------- ------------------- PUBLIC PLAN_TABLE SYNONYM APP_SCHEMA PLAN_TABLE TABLE USER01 PLAN_TABLE To use the DISPLAY_SQLSET functionality, the calling user must have SELECT privilege on ALL_SQLSET_STATEMENTS and ALL_SQLSET_PLANS. This parameter is optional.

Martin Reply Leave a Reply Cancel reply Enter your comment here... Oracle Create Plan Table SQL> select count(*) from sys.plan_table$; COUNT(*) ---------- 0 SQL> select count(*) from mnash.plan_table; COUNT(*) ---------- 4 SQL> select count(*) from plan_table; COUNT(*) ---------- 0 So the PLAN_TABLE that is resolved first Use '-BYTES -COST -PREDICATE' to display using the typical format but excluding optimizer cost and byte estimates as well as the predicate section. https://oraganism.wordpress.com/tag/explain-plan/ reports) running on a table, when gains from effective execution plan prevail over the loses of dynamic sql.

Lets create list base partitioned table transactions Column Name Comment SERNO Unique identifier PARTITIONKEY Partition Key SGENERAL Some indexed Field And create two indexes TRANSACTIONS_PK (SERNO, PARTITIONKEY) and local partitioned non-prefixed Is there a way to check?? SQL> select count(*) from sys.plan_table$; COUNT(*) ---------- 0 SQL> select count(*) from mnash.plan_table; COUNT(*) ---------- 2 SQL> select count(*) from plan_table; COUNT(*) ---------- 2 SQL> However, if I change my current it was actually part of what you needed to execute.

Oracle Create Plan Table

Format keywords must be separated by either a comma or a space: ROWS - if relevant, shows the number of rows estimated by the optimizer BYTES - if relevant, shows the Use 'BASIC ROWS' to display basic information with the additional number of rows estimated by the optimizer. Error Cannot Fetch Plan For Statement_id Autotrace Thanks again for your comment. Since typical is default, using simply 'PROJECTION' is equivalent.

Now we came to the topic of this post how oracle optimizer deal with such indexes and what we can do with it. weblink Run a query with a distinctive comment: SELECT /* TOTO */ ename, dname FROM dept d join emp e USING (deptno); Get sql_id and child_number for the preceding statement: SELECT sql_id, RUNSTATS_LAST - Same as IOSTATS LAST, that is, displays the runtime statistics for the last execution of the cursor Format keywords can be prefixed by the sign '-' to exclude the You can apply a predicate on the specified table to select rows of the plan to display.

Would a fighter jet be able to go into orbit from Mars surface? SQL> select * from table(dbms_xplan.display); PLAN_TABLE_OUTPUT ---------------------------------------------------------------------------- Error: cannot fetch last explain plan from PLAN_TABLE Looking at where EXPLAIN PLAN FOR has written the rows reveals that the PUBLIC synonym PLAN_TABLE Comment Submit Your Comment By clicking you are agreeing to Experts Exchange's Terms of Use. navigate here Report message to a moderator Re: Explain Plan [message #237690 is a reply to message #237679] Tue, 15 May 2007 08:29 Frank Messages: 7880Registered: March 2000 Senior Member

If the target plan table (see table_name parameter) also stores plan statistics columns (for example, it is a table used to capture the content of the fixed view V$SQL_PLAN_STATISTICS_ALL), additional format Identifies a specific stored execution plan for a SQL statement. SQL> select count(*) from sys.plan_table$; COUNT(*) ---------- 0 SQL> select count(*) from mnash.plan_table; COUNT(*) ---------- 2 SQL> select count(*) from plan_table; COUNT(*) ---------- 2 SQL> However, if I change my current

For finer control on the display output, the following keywords can be added to the above three standard format options to customize their default behavior.

TYPICAL: This is the default. Now I'm getting the below, where the two query result tabs are identical. The following two formats are deprecated but supported for backward compatibility: RUNSTATS_TOT - Same as IOSTATS, that is, displays IO statistics for all executions of the specified cursor. Hope this helps.

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Examples Displaying a Plan Table Using DBMS_XPLAN.DISPLAY Execute an explain plan command on a SELECT statement: EXPLAIN PLAN FOR SELECT * FROM emp e, dept d WHERE e.deptno = d.deptno AND Just to spice things up, a logon trigger used ALTER SESSION SET CURRENT_SCHEMA to APP_SCHEMA for pretty much all database users. Examples To display the different execution plans associated with the SQL ID 'atfwcg8anrykp': SELECT * FROM table(DBMS_XPLAN.DISPLAY_AWR('atfwcg8anrykp')); To display all execution plans of all stored SQL statements containing the string 'TOTO': For finer control on the display output, the following keywords can be added to the above three standard format options to customize their default behavior.

Pruning, parallel and predicate information are only displayed when applicable. Mark all read Contact Us · · Top Generated in 0.011 seconds in which 0.002 seconds were spent on a total of 3 queries. The uid for the explain plan statement is 33 (so it sees HR's employees table), but the insert into plan_table is uid 40 (‘GARY'). PARSING IN CURSOR #1 len=39 dep=0 uid=33 select * from table(dbms_xplan.display) Reply Martin Nash says: January 10, 2010 at 10:54 pm Hi Gary, Thanks for pointing me in the right direction.

If NULL is specified it also defaults to PLAN_TABLE. EXPLAIN PLAN FOR SELECT SGENERAL, count(1) FROM TRANSACTIONS PARTITION ("JUL2012") WHERE SGENERAL is not null GROUP BY SGENERAL; PLAN_TABLE_OUTPUT ----------------------------------------------------------------------------------------------- Plan hash value: 198159339 Id Operation Name Rows Bytes Cost Time eh. –gumol Sep 2 '14 at 1:15 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign Alternatively, you could choose the column PREV_SQL_ID for a specific session out of V$SESSION.

By default, if several plans in the plan table match the statement_id parameter passed to the display table function (default value is NULL), only the plan corresponding to the last EXPLAIN Pruning, parallel and predicate information are only displayed when applicable.