FULL TABLE SCAN even with the index, but why?
Could someone please explain why I'd get FULL TABLE SCAN explain plan results when joining 2 tables on columns that already have clues about them? For example,.consider this fictional scenario:
employee table with columns:
employee # (primary key column)
name
address table with columns:
employee # (foreign key to employee.employee #)
subscription_type
address
Select Employee.Name since it is, address.address_type, address.address
where employee.employee # = address.employee #.
This query shows a full table scan in terms of the explain command.
Full scan of the table is not necessarily slow and index access is not necessarily fast.
You will recover, no doubt, most if not all the ranks on both sides. The fastest way to retrieve each row in a table is to do a table scan. Using an index, and a single block of reading for each row in a table is much less effective than to do a table scan.
Justin
Tags: Database
Similar Questions
-
best way to avoid the full table scan for clause "column is zero.
I have a query with is control null, and because of that it performs a total scan of table (in millions of rows in the table)
SELECT id, x,
LAG (id) OVER (PARTITION BY userid ORDER BY has had place, id) as p_id,.
FROM MyTable
WHERE X is ZERO
What is the best way for me to avoid the full table scan. I have indexes for the X column and other columns.
Thank youHi Vasif
NULL values are indexed if the indexed entry also includes a value non-zero.
If you create an index such as:
CREATE INDEX mytable_x_idx ON mytable (x, ' ');
ensure all null values for the column X are indexed and will therefore potentially use the index to search for null values, assuming of course the result set is small enough to justify the use of the index in your query.
I have spoken previously on my blog:
http://richardfoote.WordPress.com/2008/01/23/indexing-nulls-empty-spaces/
See you soon
Richard Foote
http://richardfoote.WordPress.com/ -
Full table scan without sweeping particular column (CLOB data type column)
I want to select the online_bank table. This table with a column of type CLOB data. I want to select all the columns in the table, except the column type of clob data. but oracle full table, including the column analysis server type CLOB data when the query is run. It took a long time to complete the table. Please give me a solution of full table scan without analysis the CLOB data type column. How to avoid the time scanning CLOB data type column... ?878728 wrote:
I want to select the online_bank table. This table with a column of type CLOB data. I want to select all the columns in the table, except the column type of clob data. but oracle full table, including the column analysis server type CLOB data when the query is run. It took a long time to complete the table. Please give me a solution of full table scan without analysis the CLOB data type column. How to avoid the time scanning CLOB data type column... ?We do not have your table.
We do not have your data.
Therefore, we have no answer to your apparent mystery. -
How to improve the only table has full table scan with a lot of data and without PK
Hello world...
I have YOUR table...
CREATE YOUR TABLE
(
EMPLOYEE_NUMBER VARCHAR2 (30 BYTE) NOT NULL,
ATT_DATE DATE NOT NULL,
DATE OF DATE_TIME_IN,
DATE OF DATE_TIME_OUT,
NUMBER OF DELAY_MINUTES
NUMBER OF EARLY_EXIT_MINUTES
STATUS VARCHAR2 (20 BYTE)
)
This table contains a primary key and no clue on this subject. and coontain around 600 000 recoed.
query this table take about 5 mintes with full table scan
Select * from your.
I create indexes on Employee_No and atta_date, although there is a constarin for bith of them is not zero, but they have a duplciate value...
But even thogh the table always do full table scan...
BRThanks for the stats...
Well, your statistics on that table are updated.
The volume taken by the table is consistent with the number of lines you have and the average space taken by each activity.what I propose (this is not a 'query' problem since you decide to read the ENTIRE contents of the table and you are not satisfied with the performance):
-Try this query in parallel (maybe your server will not parallelize it):select /*+ PARALLEL(x) */ * from ta x- or check what are the events of theses/wait (probably the disk IO rate or the network)
REM: As SY compression could be an option to go in his direction, I repeat:
"change the type data number EMPLOYEE_NUMBER" instead of varchar2 (rebuild the table) in a way you will earn enough space (bytes/line) VS the actual duration of each lines.
Another way to reduce the space and If you insert / select in this table is finally reduce the PCTFREE, but beware the danger of this is that you will lose all the benefit if this table is updated or deleted. (it may not be the case today, but it could be in the future!)Published by: user11268895 on July 18, 2010 16:15
-
Index on non unique values in order to avoid the full table scan
I have a table with > 100 k records. The table is updated only during the race every night. All columns except one have non - unique values and I am querying the table with this request.
COL3 - non - unique values - only 40 distinct values
unique values - no - COL4 - 1000 distinct values
last_column - 100 k unique values
Select last_column in the table_name where in (...) col3 or col4 (...)
I tried to create a Bitmap index individually on col3 and col4 and also combined. However, in both cases, it performs a full table scan.
Please, help me optimize this query as it is used in the term altogether the system and the cost of the query is very high around 650.
I don't have much experience with popular indexes then all tracks.
Thank you
Sensey
Published by: user13312817 on November 7, 2011 11:32An alternative might be to use a union instead and the 2 index:
create index my_index1 on my_table (col3, last_column) compress 1;
create index my_index2 on my_table (col4, last_column) compress 1;Select last_column from my_table
where col3 in (...)
Union
Select last_column from my_table
where col4 (...)In other words, if the UNION would apply here whereas in double values for last_column will be deleted.
-
How to avoid the full table scan?
Hello
I'm new to sql tuning. When I run the following query. Full table scan that happens and it does not use the index.
SELECT / * + FIRST_ROWS (2) * / a0.t$ ttyp, a0.t$ amnt FROM forest112 WHERE a0.t$ amnt <>: 1 AND a0.t$ dapr =: 2 AND a0.t$ tapr =: 3;
When I searched on the net, I found by changing the operator '<>' with 'NOT IN' we can make the query to use the index, but that will change the result. Is this true? What are the other changes that can be made to this query?
I think that create under index may solve your problem, because in this case, it will not hit the table and get all desired data to index itself
create index ind_1 on forest112 (tapr$ t, t$ WTSA, dapr$ t, t$ ttyp) compute statistics;
Thank you
Harman
-
Path to XML index table is full table scan
Hi all
I have a version of oracle 11.2.0.4.6 database
Try to implement partitioning on XML indexes.
Creates a table and index partitioned by time stamp as below.
Whenever I'm trying to find the path table makes a full table scan.
I have applied the fix as indicated ( Doc ID 13522189.8 ).
So the recovery is quite slow and partition pruning does not not on XML indexes.
Wondering if anyone has experienced the same problem?
CREATE TABLE INCIDENT
(
INCIDENT_PK NUMBER (14.5).
INCIDENTGROUPING_PK NUMBER (14.5).
INCIDENTTYPE_PK NUMBER (14.5).
SECURITYCLASS_PK NUMBER (14.5).
STAMP OF INCIDENT_DATE,
SYS INCIDENT_DETAIL. XMLTYPE
)
TABLESPACE DATA_TBS_INCIDENT
PCTUSED 0
PCTFREE 10
INITRANS 1
MAXTRANS 255
STORAGE)
64K INITIALS
MINEXTENTS 1
MAXEXTENTS UNLIMITED
PCTINCREASE 0
DEFAULT USER_TABLES
)
LOGGING
NOCOMPRESS
PARTITION BY RANGE (INCIDENT_DATE)
(PARTITION SEP2013_WEEK1 VALUES LESS THAN (to_timestamp (' 00:00:00.00 2013-09-08 ',' YYYY-MM-DD HH24:MI:SS.))) FF2')),
PARTITION SEP2013_WEEK2 VALUES LESS THAN (to_timestamp ('2013-09-15 00:00:00.00 ',' YYYY-MM-DD HH24:MI:SS.)) FF2')),
PARTITION SEP2013_WEEK3 VALUES LESS THAN (to_timestamp ('2013-09-22 00:00:00.00 ',' YYYY-MM-DD HH24:MI:SS.)) FF2')),
..........);
CREATE the INDEX INCIDENTxdb_idx
ON corpaudlive. INCIDENT (INCIDENT_detail) INDEXTYPE IS XDB. LOCAL XMLINDEX 10 PARALLEL
PARAMETERS (' PATH TABLE INCIDENT_PATHTABLE (TABLESPACE DATA_TBS_INCIDENT))
PIKEY INDEX INCIDENT_PATHTABLE_PIKEY_IX (TABLESPACE IDX_TBS_INCIDENT)
PATH ID INDEX INCIDENT_PATHTABLE_ID_IX (TABLESPACE IDX_TBS_INCIDENT)
INCIDENT_PATHTABLE_VALUE_IX VALUE INDEX (TABLESPACE IDX_TBS_INCIDENT)
ORDER KEY INDEX INCIDENT_PATHTABLE_KEY_IX (TABLESPACE IDX_TBS_INCIDENT)
Paths (INCLUDE (//forename //surname //postcode //dateofbirth //street //town))');
SQL > explain the plan for
2 Select INCIDENT_pk in INCIDENT where XMLEXISTS ('/ / name [text () = 'john']' by the way of INCIDENT_detail)
3 and XMLEXISTS ("/ / name [text () 'clark' =]' by the way of INCIDENT_detail")
4 and a.INCIDENT_date between TO_TIMESTAMP (January 10, 2014 ',' DD/MM/YYYY "")
5 and TO_TIMESTAMP (September 10, 2014 ',' DD/MM/YYYY ');
He explained.
Elapsed time: 00:00:02.77
SQL > select * from table (dbms_xplan.display);
PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Hash value of plan: 123057549
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time | Pstart. Pstop | TQ | IN-OUT | PQ Distrib.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | | 1. 70. 1803 (5) | 00:00:22 | | | | | |
| 1. COORDINATOR OF PX | | | | | | | | | | |
| 2. PX SEND QC (RANDOM). : TQ10003 | 1. 70. 1803 (5) | 00:00:22 | | | Q1, 03 | P > S | QC (RAND) |
| 3. SEMI NESTED LOOPS. | 1. 70. 1803 (5) | 00:00:22 | | | Q1, 03 | SVCP | |
| 4. NESTED LOOPS | | 1. 57. 1800 (5) | 00:00:22 | | | Q1, 03 | SVCP | |
| 5. VIEW | VW_SQ_1 | 239. 5975 | 1773 (5) | 00:00:22 | | | Q1, 03 | SVCP | |
PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| 6. UNIQUE HASH | | 239. 25334 | | | | | Q1, 03 | SVCP | |
| 7. RECEIVE PX | | 239. 25334 | | | | | Q1, 03 | SVCP | |
| 8. PX SEND HASH | : TQ10002 | 239. 25334 | | | | | Q1, 02 | P > P | HASH |
| 9. UNIQUE HASH | | 239. 25334 | | | | | Q1, 02 | SVCP | |
| * 10 | HASH JOIN | | 239. 25334 | 1773 (5) | 00:00:22 | | | Q1, 02 | SVCP | |
| 11. KIND OF BUFFER. | | | | | | | Q1, 02 | ISSUE | |
| 12. RECEIVE PX | | 1. 22. 3 (0) | 00:00:01 | | | Q1, 02 | SVCP | |
| 13. PX SEND BROADCAST | : TQ10000 | 1. 22. 3 (0) | 00:00:01 | | | | S > P | BROADCAST |
| 14. TABLE ACCESS BY INDEX ROWID | X$ PT74MSS0WBH028JE0GUCLBK0LHM4 | 1. 22. 3 (0) | 00:00:01 | | | | | |
| * 15 | INDEX RANGE SCAN | X$ PR74MSS0WBH028JE0GUCLBK0LHM4 | 1. | 2 (0) | 00:00:01 | | | | | |
| * 16. HASH JOIN | | 12077 | 990K | 1770 (5) | 00:00:22 | | | Q1, 02 | SVCP | |
PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| 17. RECEIVE PX | | 250K | 10 M | 39 (0) | 00:00:01 | | | Q1, 02 | SVCP | |
| 18. PX SEND BROADCAST | : TQ10001 | 250K | 10 M | 39 (0) | 00:00:01 | | | Q1, 01 | P > P | BROADCAST |
| 19. SYSTEM PARTITION ALL | | 250K | 10 M | 39 (0) | 00:00:01 | 1. 112. Q1, 01 | ISSUE | |
| * 20. TABLE ACCESS BY LOCAL INDEX ROWID | INCIDENT_PATHTABLE | 250K | 10 M | 39 (0) | 00:00:01 | 1. 112. Q1, 01 | SVCP | |
| * 21. INDEX RANGE SCAN | INCIDENT_PATHTABLE_VALUE_IX | 161. | 25 (0) | 00:00:01 | 1. 112. Q1, 01 | SVCP | |
| 22. ITERATOR BLOCK PX | | 221 M | 8865M | 1671 (1) | 00:00:21 | 53. 54. Q1, 02 | ISSUE | |
| * 23. TABLE ACCESS FULL | INCIDENT_PATHTABLE | 221 M | 8865M | 1671 (1) | 00:00:21 | 53. 54. Q1, 02 | SVCP | |
| * 24. TABLE ACCESS BY ROWID USER | INCIDENT | 1. 32. 1 (0) | 00:00:01 | ROWID | ROWID | Q1, 03 | SVCP | |
| * 25. SEE PUSHED PREDICATE. VW_SQ_2 | 1. 13. 20 (0) | 00:00:01 | | | Q1, 03 | SVCP | |
| 26. NESTED LOOPS | | 1. 106. 20 (0) | 00:00:01 | | | Q1, 03 | SVCP | |
| 27. NESTED LOOPS | | 4. 106. 20 (0) | 00:00:01 | | | Q1, 03 | SVCP | |
PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| 28. NESTED LOOPS | | 4. 256. 8 (0) | 00:00:01 | | | Q1, 03 | SVCP | |
| 29. TABLE ACCESS BY INDEX ROWID | X$ PT74MSS0WBH028JE0GUCLBK0LHM4 | 1. 22. 3 (0) | 00:00:01 | | | Q1, 03 | SVCP | |
| * 30 | INDEX RANGE SCAN | X$ PR74MSS0WBH028JE0GUCLBK0LHM4 | 1. | 2 (0) | 00:00:01 | | | Q1, 03 | SVCP | |
| 31. ITERATOR SYSTEM PARTITION. | 4. 168. 5 (0) | 00:00:01 | 53. 54. Q1, 03 | SVCP | |
| * 32 | TABLE ACCESS BY LOCAL INDEX ROWID | INCIDENT_PATHTABLE | 4. 168. 5 (0) | 00:00:01 | 53. 54. Q1, 03 | SVCP | |
| * 33 | INDEX RANGE SCAN | INCIDENT_PATHTABLE_PIKEY_IX | 4. | 4 (0) | 00:00:01 | 53. 54. Q1, 03 | SVCP | |
| 34. ITERATOR SYSTEM PARTITION. | 1. | 2 (0) | 00:00:01 | KEY | KEY | Q1, 03 | SVCP | |
| * 35 | INDEX RANGE SCAN | INCIDENT_PATHTABLE_KEY_IX | 1. | 2 (0) | 00:00:01 | KEY | KEY | Q1, 03 | SVCP | |
| * 36 | TABLE ACCESS BY LOCAL INDEX ROWID | INCIDENT_PATHTABLE | 1. 42. 3 (0) | 00:00:01 | 1. 1. Q1, 03 | SVCP | |
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Information of predicates (identified by the operation identity card):
---------------------------------------------------
10 - access("SYS_P9".") PATHID '=' ID')
Access (SYS_PATH_REVERSE ("PATH") 15 - > = HEXTORAW ('02582E') AND SYS_PATH_REVERSE ("PATH") < HEXTORAW ('02582EFF'))
16 - access("SYS_P11".") RID "IS 'SYS_P9'." GET RID OF"AND TBL$ OR$ IDX$ PART$ NUM ("CORPAUDLIVE". "THE INCIDENT", 0,7,65535, "SYS_P9" "." " "RID") = TBL$ OR$ IDX$ PART$ NUM ("CORPAUDLIVE". "INCIDENT_PATHTAB
THE', 0,7,65535, ROWID))
filter ("SYS_P9". "ORDER_KEY" < = 'SYS_P11' "." " ORDER_KEY' AND 'SYS_P11 '. "" ORDER_KEY "< SYS_ORDERKEY_MAXCHILD ("SYS_P9". "ORDER_KEY")) "
20 filter (SYS_XMLI_LOC_ISTEXT ("SYS_P11". "LOCATOR", "SYS_P11" "." " PATHID') = 1)
21 - access("SYS_P11".") The VALUE "= 'John')
23 filter (SYS_XMLI_LOC_ISNODE ("SYS_P9". "LOCATOR") = 1 AND SYS_OP_BLOOM_FILTER (: BF0000, "SYS_P9".) " PATHID'))
PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
24 - filter("A".") INCIDENT_DATE' > = TIMESTAMP' 2014 - 10 - 01 00:00:00.000000000 "AND"A"". "" INCIDENT_DATE"< = TIMESTAMP' 2014 - 10 - 09 00:00:00.000000000' AND
"ITEM_2" = TBL$ OR$ IDX$ PART$ NUM ("INCIDENT", 0,7,65535, "A". ROWID))
25 filter ("ITEM_4" = TBL$ OR$ IDX$ PART$ NUM ("INCIDENT", 0,7,65535, "A".) ROWID))
30 - access (SYS_PATH_REVERSE ("PATH") > = HEXTORAW('027FF9') AND SYS_PATH_REVERSE ("PATH") < HEXTORAW ('027FF9FF'))
32 filter (SYS_XMLI_LOC_ISNODE ("SYS_P2". "LOCATOR") = 1) "
33 - access("SYS_P2".") GET RID OF"="A ". ROWID AND 'SYS_P2 '. ("' PATHID '=' ID ')
35 - access("SYS_P4".") GET RID OF"="A ". ROWID AND 'SYS_P2 '. "" ORDER_KEY "< ="SYS_P4. " "" ORDER_KEY "AND"SYS_P4 ". "" ORDER_KEY "< SYS_ORDERKEY_MAXCHILD ("SYS_P2". "ORDER_KEY")) "
filter ("SYS_P4". "RID"IS "SYS_P2"." GET RID OF"AND TBL$ OR$ IDX$ PART$ NUM("INCIDENT",0,7,65535,"SYS_P2".") "RID") = TBL$ OR$ IDX$ PART$ NUM ("INCIDENT_PATHTABL
E «(, 0,7,65535, ROWID)).
36 - filter("SYS_P4".") The VALUE '= 'clark' AND SYS_XMLI_LOC_ISTEXT ("SYS_P4".' LOCATOR', 'SYS_P4 '. (("" PATHID ') = 1).
PLAN_TABLE_OUTPUT
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Note
-----
-dynamic sample used for this survey (level = 6)
69 selected lines.
Elapsed time: 00:00:00.47
SQL > spool off
Thank you
CenterB
You must create a XMLIndex with two groups:
create table actionnew)
number of action_pk
action_date timestamp
action_detail xmltype
)
partition by (range (action_date)
partition values before_2015 less (timestamp ' 2015-01-01 00:00:00 ')
, partition values jan_2015 less (timestamp ' 2015-02-01 00:00:00 ')
, partition values feb_2015 less (timestamp ' 2015-03-01 00:00:00 ')
);
create index actionnew_sxi on actionnew (action_detail)
indexType is xdb.xmlindex
local
parameters (q'~)
Group my_group_1
XMLTable actionnew_xt1
"/ audit/action_details/screen_data/tables/table/row.
path of varchar2 (100) the columns "name".
, path of surname varchar2 (100) "first name".
Group my_group_2
XMLTable actionnew_xt2
"/ audit/action_details/fields.
path of varchar2 (100) the columns "name".
, path of surname varchar2 (100) "first name".
~'
);
Select x.*
to actionnew t
xmltable)
"/ audit/action_details/screen_data/tables/table/row.
in passing t.action_detail
path of varchar2 (100) the columns "name".
, path of surname varchar2 (100) "first name".
) x
where t.action_date between timestamp ' 2015-02-01 00:00:00 '
and timestamp ' 2015-03-01 00:00:00 '
and x.forename = 'anwardo. '
and x.surname = 'gram '.
;
-
The query makes a full table scan?
I have a simple select query that filters on the last 10 or 11 days of data in a table. In the first case, it runs in 1 second. In the second case it takes 15 minutes and still not done.
I can say that the second query (11 days) makes a full table scan.
-Why is this happening? ... I guess some kind of threshold?
-Are there a way to avoid this? ... or encourage Oracle to play nice.
I find confusing from the point of view before end/query to get very different performances.
Jason
Oracle 10g
Toad quest 10.6
CREATE TABLE delme10 AS SELECT * FROM ed_visits WHERE first_contact_dt >= TRUNC(SYSDATE-10,'D'); Plan hash value: 915912709 -------------------------------------------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | -------------------------------------------------------------------------------------------------- | 0 | CREATE TABLE STATEMENT | | 4799 | 5534K| 4951 (1)| 00:01:00 | | 1 | LOAD AS SELECT | DELME10 | | | | | | 2 | TABLE ACCESS BY INDEX ROWID| ED_VISITS | 4799 | 5534K| 4796 (1)| 00:00:58 | |* 3 | INDEX RANGE SCAN | NDX_ED_VISITS_020 | 4799 | | 15 (0)| 00:00:01 | -------------------------------------------------------------------------------------------------- Predicate Information (identified by operation id): --------------------------------------------------- 3 - access("FIRST_CONTACT_DT">=TRUNC(SYSDATE@!-10,'fmd')) CREATE TABLE delme11 AS SELECT * FROM ed_visits WHERE first_contact_dt >= TRUNC(SYSDATE-11,'D'); Plan hash value: 1113251513 ----------------------------------------------------------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | TQ |IN-OUT| PQ Distrib | ----------------------------------------------------------------------------------------------------------------- | 0 | CREATE TABLE STATEMENT | | 25157 | 28M| 14580 (1)| 00:02:55 | | | | | 1 | LOAD AS SELECT | DELME11 | | | | | | | | | 2 | PX COORDINATOR | | | | | | | | | | 3 | PX SEND QC (RANDOM) | :TQ10000 | 25157 | 28M| 14530 (1)| 00:02:55 | Q1,00 | P->S | QC (RAND) | | 4 | PX BLOCK ITERATOR | | 25157 | 28M| 14530 (1)| 00:02:55 | Q1,00 | PCWC | | |* 5 | TABLE ACCESS FULL | ED_VISITS | 25157 | 28M| 14530 (1)| 00:02:55 | Q1,00 | PCWP | | ----------------------------------------------------------------------------------------------------------------- Predicate Information (identified by operation id): --------------------------------------------------- 5 - filter("FIRST_CONTACT_DT">=TRUNC(SYSDATE@!-11,'fmd'))This seems to change the plan to explain it...
alter session set optimizer_index_cost_adj=10; -
causing trunc of the full Table Scans
I have a situtaion here where my query is this.
SQL > select count (1) in the HBSM_SM_ACCOUNT_INFO where OPTIONAL_PARM5 = 'HD' and CUST_STATUS in ('UP', "UUP") and trunc (FIRST_ACTVN_DATE) = trunc (sysdate);
COUNT (1)
----------
6
PLAN_TABLE_OUTPUT
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Hash value of plan: 3951750498
---------------------------------------------------------------------------------------------------------------
| ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time | Pstart. Pstop |
---------------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | 1. 10. 13904 (1) | 00:02:47 |
| 1. GLOBAL TRI | 1. 10 | | | | |
| 2. SIMPLE LIST OF PARTITION. 1. 10. 13904 (1) | 00:02:47 | 12. 12.
|* 3 | TABLE ACCESS FULL | HBSM_SM_ACCOUNT_INFO | 1. 10. 13904 (1) | 00:02:47 | 12. 12.
---------------------------------------------------------------------------------------------------------------
Information of predicates (identified by the operation identity card):
---------------------------------------------------
3 filter (("CUST_STATUS" = "UP" OU "CUST_STATUS" = 'UUP') AND)
TO_DATE (INTERNAL_FUNCTION ("FIRST_ACTVN_DATE")) = TO_DATE (TO_CHAR(SYSDATE@!)))
16 selected lines.
If I remove the trunc clause in the query performance improves significantly the results are false.
SQL > select count (1) in the HBSM_SM_ACCOUNT_INFO where OPTIONAL_PARM5 = 'HD' and CUST_STATUS in ('UP', "UUP") and FIRST_ACTVN_DATE = trunc (sysdate);
COUNT (1)
----------
0
PLAN_TABLE_OUTPUT
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Hash value of plan: 454529511
---------------------------------------------------------------------------------------------------------------------------
| ID | Operation | Name | Lines | Bytes | Cost (% CPU). Time | Pstart. Pstop |
---------------------------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT | 1. 40. 47 (0) | 00:00:01 |
|* 1 | TABLE ACCESS BY INDEX ROWID | HBSM_SM_ACCOUNT_INFO | 1. 40. 47 (0) | 00:00:01 | 12. 12.
|* 2 | INDEX RANGE SCAN | IND_FIRST_ACTVN_DATE | 51. 4 (0) | 00:00:01 |
---------------------------------------------------------------------------------------------------------------------------
Can anyone please help me by which I can get the right data, and I can also prevent such full table scans.Unless you use a functional index, apply any function to an indexed column prevents the use of the index.
The way around it in your case is to realize that
select count(1) from HBSM_SM_ACCOUNT_INFO where OPTIONAL_PARM5='MH' and CUST_STATUS in ('UP','UUP') and trunc(FIRST_ACTVN_DATE) = trunc(sysdate)Really asking that the FIRST_ACTVN_DATE are sometimes today. You can rewrite so as
select count(1) from HBSM_SM_ACCOUNT_INFO where OPTIONAL_PARM5='MH' and CUST_STATUS in ('UP','UUP') and FIRST_ACTVN_DATE >= trunc(sysdate) and FIRST_ACTVN_DATE < trunc(sysdate) + 1Note that this may not always use the index according to the number of lines are the date of the day compared to how many are outside today's date.
Also, when you post, don't forget to put your code between
tags and to post create table scripts and sample data inserts. -
kindly tell how to use the unique value of a table with the index 0
kindly tell how to use the unique value of a table with the index 0
Hi
Yep, use Index Array as Gerd says. Also, using the context help (+ h) and looking through the array palette will help you get an understanding of what each VI does.
This is fundamental LabVIEW stuff, perhaps you'd be better spending some time going through the basics.
-CC
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I bought Halo 2 for Vista, but who like OS Windows XP Pro, just can't launch the startup.exe, I search the community, there is a rumor that it won't work even with the patch. Can someone help, please?
Unfortunately, Halo 2 does support Windows Vista and more. Windows XP is not supported. There may be 3 party hacks that can make it work, but they are not taken in charge and potentially dangerous.
Paul Smith - MVP for Windows desktop experience... I crawled off NNTP - for now. Detachment Aldershot, United Kingdom. On the internet at windowsresource.net and dasmirnov.net. Please post back to let us know what works and what does not. :-)
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new to computer.put a password on my account don't you remember the password even with the owner of suspicion of computer im also the u only administor.thank
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Hi Michelle,
You can read the following article and check.
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I have laptop HP Pavilion dv7-1260. When I put in a blu - ray disc I'm propmted to get an update. Even with the update, it will not play a blu ray.
Hello
· What is the update message that you receive?
· Do you have an error message when you try to read the Blu - ray Disc?
· This problem occurs only with Blu ray discs or any of the others?
To play a Blu - ray disc, you must use a non-Microsoft program that supports Blu - ray playback and a device that can play Blu - ray discs.
See the link below:
http://Windows.Microsoft.com/en-us/Windows7/MPEG-and-DVD-video-frequently-asked-questions
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Hi all
I have a table which is accesed by application every 5 seconds. Now, this table has several delete insert updates current. The table size is aprox 200 MB (high tide) and there is say 5 ranks, which will be a sentence of 20 to 30 KB. My CMS is say 2 GB. So now the stats are not met and there is no index in this table. Now I see full table scan as his wait event. Now, I want to know.
How a scan full of tabel happens Oracle load the entire 200MB of data in the SGA and then do a table scan or should just the actual size used by the table IE 20 to 30 KB.
Thank you
A
Hello
high waters is precisely the limit up to which Oracle must read to be sure that all the data has been seen, so if you have only about 30 KB of data in the table, even if the data is in the first a few blocks from the table, a complete analysis must read the 200 MB (which is not so good but takes more time to read a few blocks). (the reason is that it was once the data written in this block and it triggered the HWM),
You can reorganize the table (alter table mytable move or use DBMS_REDEFINITION so that you can do this, the application uses the table) to reset the HWM. ("If the current small" size used"is transient and if you expect the table to increase again to use 200 MB or more, don't need to reorg; do it if you are confident that the table will remain very weak)
Best regards
Brno Vroman.
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KB2887069 Windows update fails to install, even with the audio drivers and uninstalled AV
KB2887069 Windows update fails to install, even with the audio drivers and uninstalled AV.
Background: I am setting up a pavilion of 500-164 equipped with OEM specs, specifically:
-AMD/Radeon APU
-Windows 8 6.2.9200
-See sysinfo below for more details
The PC brought to the specifications of the plant, with all Windows updates applied with the exception of KB2887069, which breaks down at the update. With the exception of troubleshooting the failure of the update, none of the changes have been made. The Windows KB2887069 update fails to install as well through the automated process when tried manually via a direct download.
Additional troubleshooting measures to date include:
-Uninstall the software OEM AV (Norton), then by restarting.
-Temporarily disable all the features of Windows Defender.
-Temporarily uninstall the audio driver (IDT High Definition Audio CODEC) OEM.
-Realization of an analysis of the SFC system (with no error found).
Results: The Windows Update full KB2887069 with a failed State and produced the following results.
2014-11-15 19:25:08:807 3488 1 b 84 Misc = logging initialized (build: 7.8.9200.17099, tz:-0500) =.
2014-11-15 19:25:08:807 3488 1 b 84 Misc = process: C:\Windows\system32\wuauclt.exe
2014-11-15 19:25:08:807 3488 1 b 84 Misc = Module: C:\Windows\SYSTEM32\wuaueng.dll
2014-11-15 19:25:08:807 3488 1 b 84 Manager:
2014-11-15 19:25:08:807 3488 1 b 84 Handler: START: Manager: installation CBS
2014-11-15 19:25:08:807 3488 1 b 84 Manager:
2014-11-15 19:25:08:807 3488 1 b 84 Manager start installation of CBS update BCA9DC69-8FB6-4B79-8E1B-E706B32B55C9
identity of 2014-11-15 session 19:25:08:807 3488 1 b 84 CBS Handler: 30409011_3339369637
the package identity 2014-11-15 19:25:08:807 3488 1 b 84 CBS Handler: Package_for_KB2887069 ~ 31bf3856ad364e35 ~ amd64 ~ ~ 6.2.1.1
2014-11-15 19:25:08:822 3488 1 b 84 Manager stand-alone installation with source=C:\Windows\SoftwareDistribution\Download\c3f79bd7f837c5015dba3018d0ab7d67\windows8-rt-kb2887069-x64.cab, workingdir = C:\Windows\SoftwareDistribution\Download\c3f79bd7f837c5015dba3018d0ab7d67\inst
2014-11-15 19:25:12:567 3488 Manager e00 FATAL: CBS called error with 0x8007371b.
2014-11-15 19:25:13:269 3488 1 b 84 Manager FATAL: full install of CBS update with type = 0, requiresReboot = 0, installerError = 1, hr = 0x8007371b
2014-11-15 19:25:13:378 3488 1 b 84 Manager:
2014-11-15 19:25:13:378 3488 1 b 84 Handler: END: Manager: installation CBS
2014-11-15 19:25:13:378 3488 1 b 84 Manager:
2014-11-15 19:25:13:378 880 fa0 Agent *.
2014-11-15 19:25:13:378 880 fa0 Agent * END * Agent: installing updates [CallerId = wusa]
2014-11-15 19:25:13:378 880 fa0 Agent *.
2014-11-15 19:25:13:378 6676 1a0c COMAPI > COMAPI - RECOVERY -: install [ClientId = wusa]
2014-11-15 19:25:13:378 6676 1a0c COMAPI - tender installation complete (successful = 0, succeeded with errors = 0, failed = 1, missing = 0)
2014-11-15 19:25:13:378 6676 COMAPI - restart required 1a0c = No.
2014-11-15 19:25:13:378 6676 1a0c COMAPI - WARNING: exit code = 0x00000000; Call error code = 0 x 80240022
2014-11-15 19:25:13:378 6676 1a0c COMAPI-
2014-11-15 19:25:13:378 6676 COMAPI COMAPI - END - 1a0c: install [ClientId = wusa]
2014-11-15 19:25:13:378 6676 1a0c COMAPI-
2014-11-15 19:25:17:605 6676 1 a 10 COMAPI - COMAPI: IUpdateServiceManager::RemoveService -.
2014-11-15 19:25:17:605 6676 COMAPI 1 has 10 - ServiceId = {b043431c-3a5f-4bf5-b5b2-34a542b07e41}
2014-11-15 19:25:17:683 6676 1 a 10 COMAPI IUpdateService removal scan volatile package service, serviceID = {B043431C-3A5F-4BF5-B5B2-34A542B07E41}
2014-11-15 19:25:17:683 6676 1 a 10 COMAPI WARNING: ISusInternal::RemoveService failed, hr = 80248014
2014-11-15 19:25:17:683 880 524 Agent WARNING: WU client omits CClientCallRecorder::RemoveService with error 0 x 80248014
2014-11-15 19:25:18:385 880 1a7c report REPORT EVENT: 2014-11-15 19:25:13:378 - 0500 1 182 {807311FF-2CC0-45E2-B903-238AD59E6377} [AGENT_INSTALLING_FAILED] {3CE1E1A4-CA14-4F2A-BEA1-71029F73AFD6} 101 501 8007371 b wusa error content install Installation error: Windows failed to install the following update with error 0x8007371b: update security for Windows (KB2887069).
2014-11-15 19:25:18:385 880 1a7c report CWERReporter::HandleEvents - WER report upload completed with status 0 x 8
2014-11-15 19:25:18:385 880 1a7c WER sent report: 7.8.9200.17099 0x8007371b (0x8007371b) 3CE1E1A4-CA14-4F2A-BEA1-71029F73AFD6 install Unmanaged 101
2014-11-15 19:25:18:385 880 1a7c report CWERReporter finish event management. (00000000)
2014-11-15 19:35:18:718 880 1 to 28 in THE # to THE: initialization of automatic updates.
2014-11-15 19:35:18:906 880 1 to 28 WuTask WU Uninit Manager tasks
2014-11-15 19:35:19:795 880 1-28 Service *.
2014-11-15 19:35:19:795 880 1-28 Service * END * Service: out of Service [exit code = 0 x 240001]
2014-11-15 19:35:19:795 880 1-28 Service *.I find it peculiar that you just bought a HP computer brand new, still-in-the-box, which came with Windows 8, not 8.1, preinstalled Windows. That said, cross your fingers, roll up your sleeves and try the fix following multiple step, I cooked up just for your computer...
ACTIONS
[You may want to print these instructions for reference offline. IMPORTANT => NO SKIP & perform all steps in one uninterrupted session! [If a step said to restart, restart! ]
1 right-click on the link, select SAVE TARGET as.... & download the Norton Removal Tool, save it to your desktop: ftp://ftp.symantec.com/public/english_us_canada/removal_tools/Norton_Removal_Tool.exe
2. close all open applications (that is, anything with an icon on the taskbar).
3. right click on the file that you saved in step #1 above and select run as administrator to run the Norton utility. DO TAP not your keyboard until the race ends, then restart.
4. right-click on the following link and save the download to your desktop: ie8 - rereg.all.zip [1]
4B. right click on the file that you saved in # 4 has & select EXTRACT ALL. This will create a new folder in Office also appointed ie8 - rereg.all. The folder contains both scripts below (plus a third that will NOT be).
Note-online scripts are good for IE9, IE10 & IE11, too,
5. close all open applications (that is, anything with an icon on the task bar), open the folder created in step # 4 b above & double-click on the file named ie8 - rereg.32on64.cmd to run the script.
5 b. Repeat this for the file named ie8 - rereg.64on64.cmd then restart.
6. reset Internet Explorer by the MANUAL of instructions on this page-online http://support.microsoft.com/kb/923737
Note => for best results, check the option Remove personal settings .
7 run the Windows Update Troubleshooter from start to finish by the first paragraph on this page-online http://windows.microsoft.com/en-us/windows-8/troubleshoot-problems-installing-updates [2]
8. restart once more then test by launching a manual check of updates & see if KB2887069 any/all others updated and allows to install now. Follow all the instructions.
9. assuming all went well, see if Windows 8.1 is available through the store Windows and, if so, if it will be properly installed. Still, follow all the instructions.
- Upgrade to Win8.1: FAQ
http://Windows.Microsoft.com/en-us/Windows-8/upgrade-to-Windows-8 - The upgrade to Win8.1 tutorial
http://Windows.Microsoft.com/en-us/Windows-8/update-from-Windows-8-tutorial - Upgrade to Win8.1: FAQ
- What's new in Win8.1?
http://Windows.Microsoft.com/en-us/Windows-8/whats-new
10. assuming that Win8.1 is now installed, perform another manual check for updates & install all Security updates offered (if any); Follow all the instructions.
11. in response to this post with a status report. Also confirm (hopefully) that Windows 8.1 has been installed successfully.
Good luck!
===========================================================
[1] source: page http://iefaq.info/index.php?action=artikel&cat=42&id=133&artlang=en of my colleague IE MVP Kai Schatzl
[2] full Disclosure: the difficulty operating in AGGRESSIVE mode will remove your update history but not the list of installed updates.
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