filter (NULL IS NOT NULL) plan to explain?
Hi allCan someone please explain what this explain plan statement means? I see a (NULL IS NOT NULL) filter as first statement - could not understand why it came so Googling.
My query is used:
EXPLAIN PLAN FOR
MERGE INTO summary_bysrccd
USING
(SELECT LAST_DAY(TRUNC(to_timestamp(os.requestdatetime, 'yyyymmddhh24:mi:ss.ff4'))) AS SUMMARY_DATE,
os.acctnum,
ol.sourcecode AS sourcecode,
ol.sourcename AS sourcename,
count(1) cnt_articleview
FROM article_views os , master_sourcecode ol
where os.sourcecode = ol.sourcecode
AND os.acctnum IS NOT NULL
AND ol.sourcecode IS NOT NULL
AND os.requestdatetime IS NOT NULL
AND UPPER(os.success_ind) = 'S'
AND (
('INCR' = 'FULL'
AND (get_date_timestamp(os.requestdatetime) BETWEEN TO_DATE('23-AUG-2011 00:00:00','DD-MON-YYYY HH24:MI:SS') AND TO_DATE('27-AUG-2011 23:59:59','DD-MON-YYYY HH24:MI:SS')
AND os.entry_CreatedDate BETWEEN TO_DATE('22-AUG-2011 00:00:00','DD-MON-YYYY HH24:MI:SS') AND TO_DATE('28-AUG-2011 00:00:00','DD-MON-YYYY HH24:MI:SS')
))
OR ('INCR' = 'FULL'
AND os.entry_createddate BETWEEN TO_DATE('23-AUG-2011 00:00:00','DD-MON-YYYY HH24:MI:SS') AND TO_DATE('27-AUG-2011 23:59:59','DD-MON-YYYY HH24:MI:SS') )
)
group by LAST_DAY(TRUNC(to_timestamp(os.requestdatetime, 'yyyymmddhh24:mi:ss.ff4'))),
os.acctnum,ol.sourcecode,ol.sourcename) mrg_query
ON (ods_av_summary_bysrccd.acctnum = mrg_query.acctnum AND
ods_av_summary_bysrccd.summary_date=mrg_query.summary_date AND
ods_av_summary_bysrccd.sourcecode=mrg_query.sourcecode)
WHEN NOT MATCHED THEN
INSERT (SUMMARY_date,ACCTNUM,SOURCECODE,SOURCENAME,CNT_ARTICLEVIEW,ENTRY_LASTUPDATEDDATE)
VALUES(mrg_query.summary_date,mrg_query.acctnum,mrg_query.sourcecode,mrg_query.sourcename,
mrg_query.cnt_articleview,sysdate)
WHEN MATCHED THEN
UPDATE SET ods_av_summary_bysrccd.cnt_articleview=
CASE WHEN NVL('INCR','INCR') = 'FULL' THEN mrg_query.cnt_articleview
ELSE ods_av_summary_bysrccd.cnt_articleview+mrg_query.cnt_articleview
END,
ods_av_summary_bysrccd.entry_lastupdateddate=sysdate;
My Plan to explain:SQL> select * from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Plan hash value: 268591246
-----------------------------------------------------------------------------------------------------------------------------------------------
| Id | Operation | Name | Rows | Bytes |TempSpc| Cost (%CPU)| Time | Pstart| Pstop |
-----------------------------------------------------------------------------------------------------------------------------------------------
| 0 | MERGE STATEMENT | | 1 | 456 | | 3 (0)| 00:00:01 | | |
| 1 | MERGE | ODS_AV_SUMMARY_BYSRCCD | | | | | | | |
| 2 | VIEW | | | | | | | | |
| 3 | NESTED LOOPS OUTER | | 1 | 417 | | 3 (0)| 00:00:01 | | |
| 4 | VIEW | | 1 | 360 | | 5 (100)| 00:00:01 | | |
| 5 | SORT GROUP BY | | 1 | 73 | 595M| | | | |
PLAN_TABLE_OUTPUT
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|* 6 | FILTER | | | | | | | | |
|* 7 | HASH JOIN | | 6975K| 485M| 3944K| 17594 (1)| 00:03:32 | | |
| 8 | TABLE ACCESS FULL | ODS_MASTER_SOURCECODE | 84021 | 2953K| | 273 (1)| 00:00:04 | | |
|* 9 | TABLE ACCESS BY GLOBAL INDEX ROWID| ODS_ARTICLE_VIEWS | 7007K| 247M| | 826 (0)| 00:00:10 | 33 | 33 |
|* 10 | INDEX FULL SCAN | IDX_AV_ACCTNUM | 25M| | | 26 (0)| 00:00:01 | | |
| 11 | TABLE ACCESS BY GLOBAL INDEX ROWID | ODS_AV_SUMMARY_BYSRCCD | 1 | 57 | | 3 (0)| 00:00:01 | ROWID | ROWID |
|* 12 | INDEX UNIQUE SCAN | ODS_AV_SUMMARY_BYSRCCD_PK | 1 | | | 2 (0)| 00:00:01 | | |
-----------------------------------------------------------------------------------------------------------------------------------------------
Predicate Information (identified by operation id):
---------------------------------------------------
PLAN_TABLE_OUTPUT
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
6 - filter(NULL IS NOT NULL)
7 - access("OS"."SOURCECODE"="OL"."SOURCECODE")
9 - filter("OS"."REQUESTDATETIME" IS NOT NULL AND "OS"."ENTRY_CREATEDDATE">=TO_DATE(' 2011-08-23 00:00:00', 'syyyy-mm-dd
hh24:mi:ss') AND "OS"."ENTRY_CREATEDDATE"<=TO_DATE(' 2011-08-27 23:59:59', 'syyyy-mm-dd hh24:mi:ss') AND UPPER("OS"."SUCCESS_IND")='S')
10 - filter("OS"."ACCTNUM" IS NOT NULL)
12 - access("ODS_AV_SUMMARY_BYSRCCD"."SUMMARY_DATE"(+)=INTERNAL_FUNCTION("MRG_QUERY"."SUMMARY_DATE") AND
"ODS_AV_SUMMARY_BYSRCCD"."ACCTNUM"(+)="MRG_QUERY"."ACCTNUM" AND "ODS_AV_SUMMARY_BYSRCCD"."SOURCECODE"(+)="MRG_QUERY"."SOURCECODE")
Note
-----
PLAN_TABLE_OUTPUT
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
- dynamic sampling used for this statement
This filter appears usually when the CBO has found a conflict between your predicates WHERE clause and declarative constraints on the tables involved.
For example, suppose that the EMP table had this constraint:
CHECK(empno > 0)
And you were to interrogate the EMP with this query:
select *
from emp
where empno < 0
You will find that the NULL value is NOT NULL filter in the execution plan.
Tags: Database
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(0)| 00:00:01 | | 45 | NESTED LOOPS | | 1 | 52 | 3 (0)| 00:00:01 | | 46 | MERGE JOIN CARTESIAN | | 1 | 48 | 2 (0)| 00:00:01 | |* 47 | INDEX RANGE SCAN | I_OBJ5 | 1 | 35 | 2 (0)| 00:00:01 | | 48 | BUFFER SORT | | 100 | 1300 | 0 (0)| 00:00:01 | | 49 | FIXED TABLE FULL | X$KZSRO | 100 | 1300 | 0 (0)| 00:00:01 | |* 50 | INDEX RANGE SCAN | I_USER2 | 1 | 4 | 1 (0)| 00:00:01 | |* 51 | INDEX RANGE SCAN | I_OBJAUTH1 | 1 | 11 | 1 (0)| 00:00:01 | |* 52 | INDEX RANGE SCAN | I_DEPENDENCY1 | 4 | | 1 (0)| 00:00:01 | |* 53 | TABLE ACCESS BY INDEX ROWID | DEPENDENCY$ | 1 | 10 | 2 (0)| 00:00:01 | |* 54 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 55 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 56 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | | 57 | NESTED LOOPS | | 2 | 68 | 2 (0)| 00:00:01 | | 58 | NESTED LOOPS | | 1 | 21 | 2 (0)| 00:00:01 | | 59 | TABLE ACCESS BY INDEX ROWID | TABPART$ | 1 | 10 | 1 (0)| 00:00:01 | |* 60 | INDEX UNIQUE SCAN | I_TABPART_OBJ$ | 1 | | 0 (0)| 00:00:01 | |* 61 | INDEX RANGE SCAN | I_OBJAUTH1 | 1 | 11 | 1 (0)| 00:00:01 | |* 62 | FIXED TABLE FULL | X$KZSRO | 2 | 26 | 0 (0)| 00:00:01 | |* 63 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 64 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 65 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 66 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 67 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 68 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 69 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 70 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 71 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 72 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 73 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 74 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | | 75 | VIEW | | 1 | 13 | 2 (0)| 00:00:01 | | 76 | FAST DUAL | | 1 | | 2 (0)| 00:00:01 | |* 77 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 78 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 79 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 80 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 81 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | |* 82 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | | 83 | NESTED LOOPS | | 2 | 42 | 2 (0)| 00:00:01 | |* 84 | INDEX RANGE SCAN | I_OBJAUTH1 | 1 | 8 | 2 (0)| 00:00:01 | |* 85 | FIXED TABLE FULL | X$KZSRO | 2 | 26 | 0 (0)| 00:00:01 | |* 86 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | | 87 | NESTED LOOPS | | 2 | 42 | 2 (0)| 00:00:01 | |* 88 | INDEX RANGE SCAN | I_OBJAUTH1 | 1 | 8 | 2 (0)| 00:00:01 | |* 89 | FIXED TABLE FULL | X$KZSRO | 2 | 26 | 0 (0)| 00:00:01 | |* 90 | FIXED TABLE FULL | X$KZSPR | 1 | 26 | 0 (0)| 00:00:01 | | 91 | VIEW | | 1 | 16 | 1 (0)| 00:00:01 | | 92 | SORT GROUP BY | | 1 | 86 | 1 (0)| 00:00:01 | | 93 | NESTED LOOPS | | 1 | 86 | 1 (0)| 00:00:01 | | 94 | MERGE JOIN CARTESIAN | | 1 | 78 | 0 (0)| 00:00:01 | | 95 | NESTED LOOPS | | 1 | 65 | 0 (0)| 00:00:01 | |* 96 | INDEX UNIQUE SCAN | I_OLAP_CUBES$ | 1 | 13 | 0 (0)| 00:00:01 | |* 97 | TABLE ACCESS BY INDEX ROWID| OLAP_DIMENSIONALITY$ | 1 | 52 | 0 (0)| 00:00:01 | |* 98 | INDEX RANGE SCAN | I_OLAP_DIMENSIONALITY$ | 1 | | 0 (0)| 00:00:01 | | 99 | BUFFER SORT | | 1 | 13 | 0 (0)| 00:00:01 | | 100 | INDEX FULL SCAN | I_OLAP_CUBE_DIMENSIONS$ | 1 | 13 | 0 (0)| 00:00:01 | |*101 | INDEX RANGE SCAN | I_OBJ1 | 1 | 8 | 1 (0)| 00:00:01 | | 102 | NESTED LOOPS | | 1 | 30 | 2 (0)| 00:00:01 | |*103 | INDEX SKIP SCAN | I_USER2 | 1 | 20 | 1 (0)| 00:00:01 | |*104 | INDEX RANGE SCAN | I_OBJ4 | 1 | 10 | 1 (0)| 00:00:01 | -------------------------------------------------------------------------------------------------------------- Predicate Information (identified by operation id): --------------------------------------------------- 1 - filter(ROWNUM<13) 2 - filter(("O"."TYPE#"<>1 AND "O"."TYPE#"<>10 OR "O"."TYPE#"=1 AND (SELECT 1 FROM "SYS"."IND$" "I" WHERE "I"."OBJ#"=:B1 AND ("I"."TYPE#"=1 OR "I"."TYPE#"=2 OR "I"."TYPE#"=3 OR "I"."TYPE#"=4 OR "I"."TYPE#"=6 OR "I"."TYPE#"=7 OR "I"."TYPE#"=9))=1) AND (("O"."SPARE3"=USERENV('SCHEMAID') OR "O"."SPARE3"=1) OR "O"."TYPE#"=13 AND ( EXISTS (SELECT 0 FROM "SYS"."OBJAUTH$" "OA",SYS."X$KZSRO" "X$KZSRO" WHERE "OA"."GRANTEE#"="KZSROROL" AND "OA"."OBJ#"=:B2 AND ("OA"."PRIVILEGE#"=12 OR "OA"."PRIVILEGE#"=26)) OR EXISTS (SELECT 0 FROM SYS."X$KZSPR" "X$KZSPR" WHERE "INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-184) OR (-"KZSPRPRV")=(-181) OR (-"KZSPRPRV")=(-241)))) OR ("O"."TYPE#"=1 OR "O"."TYPE#"=2 OR "O"."TYPE#"=3 OR "O"."TYPE#"=4 OR "O"."TYPE#"=5 OR "O"."TYPE#"=19 OR "O"."TYPE#"=20 OR "O"."TYPE#"=34 OR "O"."TYPE#"=35) AND EXISTS (SELECT 0 FROM SYS."X$KZSPR" "X$KZSPR" WHERE "INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-45) OR (-"KZSPRPRV")=(-47) OR (-"KZSPRPRV")=(-48) OR (-"KZSPRPRV")=(-49) OR (-"KZSPRPRV")=(-50))) OR "O"."TYPE#"=11 AND ( EXISTS (SELECT 0 FROM "SYS"."OBJAUTH$" "OA","SYS"."DEPENDENCY$" "DEP",SYS."USER$" "U",SYS."OBJ$" "O",SYS."X$KZSRO" "X$KZSRO" WHERE "O"."NAME"=:B3 AND "O"."SPARE3"=:B4 AND "O"."TYPE#"=9 AND "O"."TYPE#"<>88 AND "O"."OWNER#"="U"."USER#" AND "DEP"."D_OBJ#"=:B5 AND "DEP"."P_OBJ#"="O"."OBJ#" AND "OA"."OBJ#"="O"."OBJ#" AND "OA"."PRIVILEGE#"=26 AND "OA"."GRANTEE#"="KZSROROL") OR EXISTS (SELECT 0 FROM SYS."X$KZSPR" "X$KZSPR" WHERE ((-"KZSPRPRV")=(-141) OR (-"KZSPRPRV")=(-241)) AND "INST_ID"=USERENV('INSTANCE'))) OR ("O"."TYPE#"=7 OR "O"."TYPE#"=8 OR "O"."TYPE#"=9 OR "O"."TYPE#"=28 OR "O"."TYPE#"=29 OR "O"."TYPE#"=30 OR "O"."TYPE#"=56) AND ( EXISTS (SELECT 0 FROM "SYS"."OBJAUTH$" "OA",SYS."X$KZSRO" "X$KZSRO" WHERE "OA"."GRANTEE#"="KZSROROL" AND "OA"."OBJ#"=:B6 AND ("OA"."PRIVILEGE#"=12 OR "OA"."PRIVILEGE#"=26)) OR EXISTS (SELECT 0 FROM SYS."X$KZSPR" "X$KZSPR" WHERE "INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-144) OR (-"KZSPRPRV")=(-141) OR (-"KZSPRPRV")=(-241)))) OR "O"."TYPE#"<>14 AND "O"."TYPE#"<>28 AND "O"."TYPE#"<>29 AND "O"."TYPE#"<>30 AND "O"."TYPE#"<>56 AND "O"."TYPE#"<>93 AND "O"."TYPE#"<>7 AND "O"."TYPE#"<>8 AND "O"."TYPE#"<>9 AND "O"."TYPE#"<>11 AND "O"."TYPE#"<>12 AND "O"."TYPE#"<>13 AND EXISTS (SELECT 0 FROM "SYS"."OBJAUTH$" "OBJAUTH$",SYS."X$KZSRO" "X$KZSRO" WHERE "GRANTEE#"="KZSROROL" AND "OBJ#"=:B7 AND ("PRIVILEGE#"=3 OR "PRIVILEGE#"=6 OR "PRIVILEGE#"=7 OR "PRIVILEGE#"=9 OR "PRIVILEGE#"=10 OR "PRIVILEGE#"=11 OR "PRIVILEGE#"=12 OR "PRIVILEGE#"=16 OR "PRIVILEGE#"=17 OR "PRIVILEGE#"=18)) OR "O"."TYPE#"=12 AND ( EXISTS (SELECT 0 FROM "SYS"."OBJAUTH$" "OA","SYS"."TRIGGER$" "T",SYS."X$KZSRO" "X$KZSRO" WHERE "OA"."GRANTEE#"="KZSROROL" AND "T"."OBJ#"=:B8 AND BITAND("T"."PROPERTY",24)=0 AND "OA"."OBJ#"="T"."BASEOBJECT" AND "OA"."PRIVILEGE#"=26) OR EXISTS (SELECT 0 FROM SYS."X$KZSPR" "X$KZSPR" WHERE ((-"KZSPRPRV")=(-152) OR (-"KZSPRPRV")=(-241)) AND "INST_ID"=USERENV('INSTANCE'))) OR "O"."TYPE#"=14 AND ( EXISTS (SELECT 0 FROM "SYS"."OBJAUTH$" "OA","SYS"."DEPENDENCY$" "DEP",SYS."USER$" "U",SYS."OBJ$" "O",SYS."X$KZSRO" "X$KZSRO" WHERE "O"."NAME"=:B9 AND "O"."SPARE3"=:B10 AND "O"."TYPE#"=13 AND "O"."TYPE#"<>88 AND "O"."OWNER#"="U"."USER#" AND "DEP"."D_OBJ#"=:B11 AND "DEP"."P_OBJ#"="O"."OBJ#" AND "OA"."OBJ#"="O"."OBJ#" AND "OA"."PRIVILEGE#"=26 AND "OA"."GRANTEE#"="KZSROROL") OR EXISTS (SELECT 0 FROM SYS."X$KZSPR" "X$KZSPR" WHERE ((-"KZSPRPRV")=(-181) OR (-"KZSPRPRV")=(-241)) AND "INST_ID"=USERENV('INSTANCE'))) OR ("O"."TYPE#"=66 OR "O"."TYPE#"=100) AND EXISTS (SELECT 0 FROM SYS."X$KZSPR" "X$KZSPR" WHERE (-"KZSPRPRV")=(-265) AND "INST_ID"=USERENV('INSTANCE')) OR ("O"."TYPE#"=67 OR "O"."TYPE#"=79) AND EXISTS (SELECT 0 FROM SYS."X$KZSPR" "X$KZSPR" WHERE ((-"KZSPRPRV")=(-265) OR (-"KZSPRPRV")=(-266)) AND "INST_ID"=USERENV('INSTANCE')) OR "O"."TYPE#"=19 AND EXISTS (SELECT 0 FROM SYS."TABPART$" "TABPART$","SYS"."OBJAUTH$" "OBJAUTH$",SYS."X$KZSRO" "X$KZSRO" WHERE "GRANTEE#"="KZSROROL" AND "BO#"="OBJ#" A) 3 - access("O"."OWNER#"="U"."USER#") 5 - access("O"."SPARE3"="U"."USER#") 7 - filter("O"."NAME"<>'_NEXT_OBJECT' AND "O"."NAME"<>'_default_auditing_options_' AND BITAND("O"."FLAGS",128)=0 AND "O"."LINKNAME" IS NULL) 8 - filter("I"."TYPE#"=1 OR "I"."TYPE#"=2 OR "I"."TYPE#"=3 OR "I"."TYPE#"=4 OR "I"."TYPE#"=6 OR "I"."TYPE#"=7 OR "I"."TYPE#"=9) 9 - access("I"."OBJ#"=:B1) 10 - access("OA"."GRANTEE#"="KZSROROL") 11 - access("OA"."OBJ#"=:B1) filter("OA"."PRIVILEGE#"=12 OR "OA"."PRIVILEGE#"=26) 13 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-184) OR (-"KZSPRPRV")=(-181) OR (-"KZSPRPRV")=(-241))) 14 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-45) OR (-"KZSPRPRV")=(-47) OR (-"KZSPRPRV")=(-48) OR (-"KZSPRPRV")=(-49) OR (-"KZSPRPRV")=(-50))) 20 - access("O"."SPARE3"=:B1 AND "O"."NAME"=:B2 AND "O"."TYPE#"=9) filter("O"."TYPE#"=9 AND "O"."TYPE#"<>88) 23 - access("O"."OWNER#"="U"."USER#") 24 - access("OA"."OBJ#"="O"."OBJ#" AND "OA"."GRANTEE#"="KZSROROL" AND "OA"."PRIVILEGE#"=26) filter("OA"."PRIVILEGE#"=26 AND "OA"."GRANTEE#"="KZSROROL") 25 - access("DEP"."D_OBJ#"=:B1) 26 - filter("DEP"."P_OBJ#"="O"."OBJ#") 27 - filter(((-"KZSPRPRV")=(-141) OR (-"KZSPRPRV")=(-241)) AND "INST_ID"=USERENV('INSTANCE')) 28 - access("OA"."GRANTEE#"="KZSROROL") 29 - access("OA"."OBJ#"=:B1) filter("OA"."PRIVILEGE#"=12 OR "OA"."PRIVILEGE#"=26) 31 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-144) OR (-"KZSPRPRV")=(-141) OR (-"KZSPRPRV")=(-241))) 33 - access("OBJ#"=:B1) filter("PRIVILEGE#"=3 OR "PRIVILEGE#"=6 OR "PRIVILEGE#"=7 OR "PRIVILEGE#"=9 OR "PRIVILEGE#"=10 OR "PRIVILEGE#"=11 OR "PRIVILEGE#"=12 OR "PRIVILEGE#"=16 OR "PRIVILEGE#"=17 OR "PRIVILEGE#"=18) 34 - filter("GRANTEE#"="KZSROROL") 37 - filter(BITAND("T"."PROPERTY",24)=0) 38 - access("T"."OBJ#"=:B1) 39 - access("OA"."OBJ#"="T"."BASEOBJECT" AND "OA"."PRIVILEGE#"=26) filter("OA"."PRIVILEGE#"=26) 40 - filter("OA"."GRANTEE#"="KZSROROL") 41 - filter(((-"KZSPRPRV")=(-152) OR (-"KZSPRPRV")=(-241)) AND "INST_ID"=USERENV('INSTANCE')) 47 - access("O"."SPARE3"=:B1 AND "O"."NAME"=:B2 AND "O"."TYPE#"=13) filter("O"."TYPE#"=13 AND "O"."TYPE#"<>88) 50 - access("O"."OWNER#"="U"."USER#") 51 - access("OA"."OBJ#"="O"."OBJ#" AND "OA"."GRANTEE#"="KZSROROL" AND "OA"."PRIVILEGE#"=26) filter("OA"."PRIVILEGE#"=26 AND "OA"."GRANTEE#"="KZSROROL") 52 - access("DEP"."D_OBJ#"=:B1) 53 - filter("DEP"."P_OBJ#"="O"."OBJ#") 54 - filter(((-"KZSPRPRV")=(-181) OR (-"KZSPRPRV")=(-241)) AND "INST_ID"=USERENV('INSTANCE')) 55 - filter((-"KZSPRPRV")=(-265) AND "INST_ID"=USERENV('INSTANCE')) 56 - filter(((-"KZSPRPRV")=(-265) OR (-"KZSPRPRV")=(-266)) AND "INST_ID"=USERENV('INSTANCE')) 60 - access("OBJ#"=:B1) 61 - access("BO#"="OBJ#" AND "PRIVILEGE#"=9) filter("PRIVILEGE#"=9) 62 - filter("GRANTEE#"="KZSROROL") 63 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-189) OR (-"KZSPRPRV")=(-190) OR (-"KZSPRPRV")=(-191) OR (-"KZSPRPRV")=(-192))) 64 - filter((-"KZSPRPRV")=(-109) AND "INST_ID"=USERENV('INSTANCE')) 65 - filter(((-"KZSPRPRV")=(-177) OR (-"KZSPRPRV")=(-178)) AND "INST_ID"=USERENV('INSTANCE')) 66 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-45) OR (-"KZSPRPRV")=(-47) OR (-"KZSPRPRV")=(-48) OR (-"KZSPRPRV")=(-49) OR (-"KZSPRPRV")=(-50))) 67 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-205) OR (-"KZSPRPRV")=(-206) OR (-"KZSPRPRV")=(-207) OR (-"KZSPRPRV")=(-208))) 68 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-200) OR (-"KZSPRPRV")=(-201) OR (-"KZSPRPRV")=(-202) OR (-"KZSPRPRV")=(-203) OR (-"KZSPRPRV")=(-204))) 69 - filter(((-"KZSPRPRV")=(-222) OR (-"KZSPRPRV")=(-223)) AND "INST_ID"=USERENV('INSTANCE')) 70 - filter((-"KZSPRPRV")=12 AND "INST_ID"=USERENV('INSTANCE')) 71 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-251) OR (-"KZSPRPRV")=(-252) OR (-"KZSPRPRV")=(-253) OR (-"KZSPRPRV")=(-254))) 72 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-258) OR (-"KZSPRPRV")=(-259) OR (-"KZSPRPRV")=(-260) OR (-"KZSPRPRV")=(-261))) 73 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-246) OR (-"KZSPRPRV")=(-247) OR (-"KZSPRPRV")=(-248) OR (-"KZSPRPRV")=(-249))) 74 - filter(((-"KZSPRPRV")=(-268) OR (-"KZSPRPRV")=(-267)) AND "INST_ID"=USERENV('INSTANCE')) 77 - filter(((-"KZSPRPRV")=(-277) OR (-"KZSPRPRV")=(-278)) AND "INST_ID"=USERENV('INSTANCE')) 78 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-292) OR (-"KZSPRPRV")=(-293) OR (-"KZSPRPRV")=(-294))) 79 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-282) OR (-"KZSPRPRV")=(-283) OR (-"KZSPRPRV")=(-284) OR (-"KZSPRPRV")=(-285))) 80 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-302) OR (-"KZSPRPRV")=(-303) OR (-"KZSPRPRV")=(-304) OR (-"KZSPRPRV")=(-305) OR (-"KZSPRPRV")=(-306) OR (-"KZSPRPRV")=(-307))) 81 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-315) OR (-"KZSPRPRV")=(-316) OR (-"KZSPRPRV")=(-317) OR (-"KZSPRPRV")=(-318))) 82 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-320) OR (-"KZSPRPRV")=(-321) OR (-"KZSPRPRV")=(-322))) 84 - access("OBJ#"=:B1) 85 - filter("GRANTEE#"="KZSROROL") 86 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-309) OR (-"KZSPRPRV")=(-310) OR (-"KZSPRPRV")=(-311) OR (-"KZSPRPRV")=(-312) OR (-"KZSPRPRV")=(-313))) 88 - access("OBJ#"=:B1) 89 - filter("GRANTEE#"="KZSROROL") 90 - filter("INST_ID"=USERENV('INSTANCE') AND ((-"KZSPRPRV")=(-302) OR (-"KZSPRPRV")=(-303) OR (-"KZSPRPRV")=(-304) OR (-"KZSPRPRV")=(-305) OR (-"KZSPRPRV")=(-306) OR (-"KZSPRPRV")=(-307))) 96 - access("C"."OBJ#"=:B1) 97 - filter("DIML"."DIMENSION_TYPE"=11) 98 - access("DIML"."DIMENSIONED_OBJECT_ID"=:B1 AND "DIML"."DIMENSIONED_OBJECT_TYPE"=1) 101 - access("DIML"."DIMENSION_ID"="DO"."OBJ#") filter("DO"."OBJ#"="DIM"."OBJ#") 103 - access("U2"."TYPE#"=2 AND "U2"."SPARE2"=TO_NUMBER(SYS_CONTEXT('userenv','current_edition_id'))) filter("U2"."TYPE#"=2 AND "U2"."SPARE2"=TO_NUMBER(SYS_CONTEXT('userenv','current_edition_id'))) 104 - access("O2"."DATAOBJ#"=:B1 AND "O2"."TYPE#"=88 AND "O2"."OWNER#"="U2"."USER#") SYS@XE>
JasonWelcome to the forum!
Every time you post please provide your Oracle Version 4-digit (result of SELECT * FROM V$ VERSION).
>
So, first question, why I get this error? Object should be available to everyone, right?
>
Your username may have access to object. But you must have dba privileges to access the objects of database views.The "ORA-01039: insufficient privileges on the underlying objects of the view" message tells you that the user has privileges to access the BASIC OBJECTS used to generate the view. Access to these basic objects is necessary to generate the plan you want to see. To work around this, I connect as sysdba and get the second question: the following extremely verbose output
>
And that's because sysdba has access to objects in the view database. You asked for a plan, and you guessed it. This verbose output IS the plan and all those that oddly named tables are presented in order to satisfy your request are included in the plan.Make your query using DUAL citizenship or SCOTT. Table EMP and you will not get the error.
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I have the following plan to explain, but I don't know how interperent it
Hello all;
I have the explain plan following below obtained pl/sql developer, but I don't know how to interperent or use it for my performance problem
PLAN_TABLE_OUTPUT ---------------------------------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes | Cost | ---------------------------------------------------------------------------------------- | 0 | SELECT STATEMENT | | 1 | 108 | 932 | | 1 | SORT GROUP BY | | 1 | 108 | 932 | |* 2 | TABLE ACCESS BY INDEX ROWID | OPERATION | 1 | 34 | 12 | | 3 | NESTED LOOPS | | 1 | 108 | 929 | | 4 | NESTED LOOPS | | 1 | 74 | 917 | |* 5 | HASH JOIN | | 1 | 60 | 916 | |* 6 | TABLE ACCESS FULL | WORK_ORDER | 1302 | 46872 | 787 | |* 7 | TABLE ACCESS FULL | SERIALIZATION_TRACE | 129K| 3044K| 123 | |* 8 | TABLE ACCESS BY INDEX ROWID| PART | 1 | 14 | 1 | |* 9 | INDEX UNIQUE SCAN | SYS_C004302 | 1 | | | |* 10 | INDEX RANGE SCAN | RCLX_OPERATION_3 | 1 | | 11 | ---------------------------------------------------------------------------------------- Predicate Information (identified by operation id): --------------------------------------------------- 2 - filter("O"."RESOURCE_ID" LIKE 'TEST%') 5 - access("W"."BASE_ID"="PT"."WORKORDER_BASE_ID" AND "W"."LOT_ID"="PT"."WORKORDER_LOT_ID" AND "W"."SPLIT_ID"="PT"."WORKORDER_SPLIT_ID" AND "W"."SUB_ID"="PT"."WORKORDER_SUB_ID") 6 - filter("W"."TYPE"='W' AND "W"."PART_ID" IS NOT NULL AND "W"."PART_ID"<>'RMA' AND "W"."PART_ID"<>'REWORK' AND "W"."CLOSE_DATE">=TO_DATE('2010-01-01 00:00:00', 'yyyy-mm-dd hh24:mi:ss') AND "W"."CLOSE_DATE"<=TO_DATE('2010-12-31 00:00:00', 'yyyy-mm-dd hh24:mi:ss')) 7 - filter("PT"."SERIAL_NUMBER"<>'N/A') 8 - filter("P"."PLANNER_USER_ID"='CCA') 9 - access("W"."PART_ID"="P"."ID") filter("P"."ID"<>'RMA' AND "P"."ID"<>'REWORK') 10 - access("W"."SUB_ID"="O"."WORKORDER_SUB_ID" AND "W"."BASE_ID"="O"."WORKORDER_BASE_ID" AND "W"."LOT_ID"="O"."WORKORDER_LOT_ID" AND "W"."SPLIT_ID"="O"."WORKORDER_SPLIT_ID") filter("W"."BASE_ID"="O"."WORKORDER_BASE_ID" AND "W"."LOT_ID"="O"."WORKORDER_LOT_ID" AND "W"."SPLIT_ID"="O"."WORKORDER_SPLIT_ID") Note: cpu costing is off
Here are a few slides that I use when I present to you how to read explain plans:
http://www.morganslibrary.org/Pres/lad/cloug_1_xplan.PDF|* 6 | TABLE ACCESS FULL | WORK_ORDER | 1302 | 46872 | 787 | |* 7 | TABLE ACCESS FULL | SERIALIZATION_TRACE | 129K| 3044K| 123 |
Essentially, your question is here. you read a lot of lines to return alone. Do you need them all? To get them you do full table scan on the two tables? An index would help?
and yes I am voluntarily is not giving you the answers but rather to point you in the right direction to find it yourself.
On the one hand, I don't know your version, your SQL, or what indexes exist.
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Hello
Oracle - Oracle Database 11 g Enterprise Edition Release 11.2.0.2.0 - 64 bit Version
I was able to reproduce the error like below:
Run the following code to Schema1:
Then in Schema2, createCREATE TABLE TNAME1 ( DB_ID VARCHAR2 (10 BYTE), DATA_ID VARCHAR2 (10 BYTE), DATA_ID2 VARCHAR2 (10 BYTE), IDENTIFIER1 NUMBER (19) NOT NULL, ID1 NUMBER (10) NOT NULL, STATUS1 NUMBER (10) NOT NULL, TIME_STAMP NUMBER (19) NOT NULL, OBJECT_ID VARCHAR2 (40 BYTE) NOT NULL, OBJECT_NAME VARCHAR2 (80 BYTE) NOT NULL, UNIQUE_ID VARCHAR2 (255 BYTE), DATA_LIVE CHAR (1 BYTE) NOT NULL, XML_MESSAGE SYS.XMLTYPE, ID2 VARCHAR2 (255 BYTE) NOT NULL, FLAG1 CHAR (1 BYTE) NOT NULL, KEY1 VARCHAR2 (255 BYTE), HEADER1 VARCHAR2 (2000 BYTE) NOT NULL, VERSION2 VARCHAR2 (255 BYTE) NOT NULL, TYPE1 VARCHAR2 (15 BYTE), TIMESTAMP1 TIMESTAMP (6), SOURCE_NUMBER NUMBER ) XMLTYPE XML_MESSAGE STORE AS BINARY XML PARTITION BY RANGE (TIMESTAMP1) (PARTITION MAX VALUES LESS THAN (MAXVALUE) ) NOCOMPRESS NOCACHE ENABLE ROW MOVEMENT / begin app_utils.drop_parameter('TNAME1_PAR'); end; BEGIN DBMS_XMLINDEX.REGISTERPARAMETER( 'TNAME1_PAR', 'PATH TABLE TNAME1_RP_PT PATHS (INCLUDE ( /abc:Msg/product/productType /abc:Msg/Products/Owner ) NAMESPACE MAPPING ( xmlns:abc="Abc:Set" )) '); END; / CREATE INDEX Indx_XPATH_TNAME1 ON "TNAME1" (XML_MESSAGE) INDEXTYPE IS XDB.XMLINDEX PARAMETERS ( 'PARAM TNAME1_PAR' ) local;
SCHEMA1:create synonym TNAME1 FOR SCHEMA1.TNAME1
Now to SCHEMA2, if we try:GRant All on TNAME1 to SCHEMA2
WE GET-> ORA-00942: table or view does not existExplain Plan for SELECT xmltype.getclobval (XML_MESSAGE) FROM TNAME1 t WHERE XMLEXISTS ( 'declare namespace abc="Abc:Set"; /abc:Msg/product/productType= ("1", "2") ' PASSING XML_MESSAGE);
While this works:
- Please tell me, what is the reason behind this and how can I overcome it. Originally all is my point of view based on this condition to fail in another schema, and not not to pick up the XMLIndexes.Explain Plan for SELECT xmltype.getclobval (XML_MESSAGE) FROM TNAME1 t
Also
Output is as:SELECT * from DBA_XML_TAB_COLS WHERE TABLE_NAME like 'TNAME1';
OWNER | TABLE_NAME | COLUMN_NAME | XMLSCHEMA. SCHEMA_OWNER | ELEMENT_NAME | STORAGE_TYPE | ANYSCHEMA | RUN
SCHEMA1 | TNAME1 | XML_MESSAGE | || || BINARY | DON'T | YES |
SCHEMA1 | TNAME1 | SYS_NC00025$ | || || CLOB | ||
-Can I change AnySchema to YES to NO for - column_name = XML_MESSAGE? Maybe that will solve my problem.
-SYS_NC00025$ is the XML Index, why not get all the values for ANYSCHEMA, RUN on it. What is causing the problem.
Please suggest... Thank you...The problem sounds familiar. Please create a SR on http://support.oracle.com for this one.
-
Unable to understand the Plan to explain
Hi gurus
I'm trying to understand some basics of explain plan and get a hard time, I was reading the book tuning performance and incapable of understanding explain plan for the following query:
Example query
EXPLAIN PLAN FOR
SELECT *.
WCP
WHERE THERE IS NOT (SELECT 0
OF THE Department
WHERE dept.dname = 'SALES' AND dept.deptno = emp.deptno)
AND NOT EXISTS (SELECT 0
Bonus OF
WHERE bonus.ename = emp.ename);
-------------------
Select * from table (dbms_xplan.display);
---------------
Output
Hash value of plan: 734347697
-----------------------------------------------------------------------------
| ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time |
-----------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 5. 290. 7 (15) | 00:00:01 |
|* 1 | HASH ANTI JOIN | | 5. 290. 7 (15) | 00:00:01 |
|* 2 | HASH ANTI JOIN | | 5. 255. 5 (20) | 00:00:01 |
| 3. TABLE ACCESS FULL | EMP | 14. 532. 2 (0) | 00:00:01 |
|* 4 | TABLE ACCESS FULL | DEPT | 1. 13. 2 (0) | 00:00:01 |
| 5. TABLE ACCESS FULL | BONUS | 1. 7. 2 (0) | 00:00:01 |
-----------------------------------------------------------------------------
Information of predicates (identified by the operation identity card):
---------------------------------------------------
1 - access("BONUS".") ENAME "=" EMP ". ("' ENAME ')
2 - access("DEPT".") DEPTNO "=" EMP ". ("' DEPTNO ')
4 - filter("DEPT".") DNAME "= 'SALES')
-------------------------
Grateful if someone help out me. Thank you
In addition, I really appreciate if someone proposes a simple tutorial to explain plan. Thanks again
Concerning
Shu
Hi Shuumail,
Here is the tutorial http://allthingsoracle.com/execution-plans-part-1-finding-plans/
Maybe you are looking for
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