Virtual column and partition exchange load
Hi All,
Can someone tell me that if i have a virtual column on a table in 11g then can we load the data as partition exchange loading into the table.
Thanks & Regards,
Ankit Rana
Hemant K Chitale wrote:
Why not run a simple test with a dummy table, a few columns (plus a virtual column) and a few partitions ?
Excellent suggestion.
Shouldn't take more than about 30 minutes to create a test case - and if it takes more than 30 minutes the OP needs the practice anyway to get a better feel for the technology.
Hint to OP: make sure you put some data in the "incoming" table, make sure you put some data in the "non-exchanged" partitions, remember to include a unique/pk constraint if you're expecting one on production, and run with sql_trace enabled to see what's happening in the background.
Regards
Jonathan Lewis
Similar Messages
-
Partition Exchange Load in same schema
Hi all,
If my source and target tables are in different schema but table's structures are same. Can I apply Direct partition exchange load (PEL) in my mapping using OWB. Plz help me......
Thank & Regards
SoumenHemant K Chitale wrote:
Why not run a simple test with a dummy table, a few columns (plus a virtual column) and a few partitions ?
Excellent suggestion.
Shouldn't take more than about 30 minutes to create a test case - and if it takes more than 30 minutes the OP needs the practice anyway to get a better feel for the technology.
Hint to OP: make sure you put some data in the "incoming" table, make sure you put some data in the "non-exchanged" partitions, remember to include a unique/pk constraint if you're expecting one on production, and run with sql_trace enabled to see what's happening in the background.
Regards
Jonathan Lewis -
Problem in Direct Partition Exchange Loading(PEL)
Hi all,
I am facing a problem during execution of a OWB mapping. The map is using direct partition exchange loading. There are one source and one target table in the map. it is very simple.
While the source and target are in the same schema there is no problem. But when they are in different schemas during execution a warning is given. That is:
ResolveTableNameErrorRTV20006;BIA_RTL_INTERFACE"."SALE_SRC
Here BIA_RTL_INTERFACE is source schema and SALE_SRC is source table.
However the source record is going to the target table as required but the same record also exists in the same table after execution which is not desirable for direct PEL. So i think though the loading is done in target but it is not using the direct Partition Exchange Technique.
Is there some kind of special privileage for Partition Exchange Loading when the source and target are in different schemas in the same database? Plase clarify this. Hope i can explain the problem. Waiting for reply.
Thanks & Regards,
Sumanta Das
KolkataThe error means you are trying to swap a partition that still contains data in a configuration where OWB expects an empty partition. How did you set the "Replace existing data in Target Partition" configuration parameter?
Also, for more details on PEL, review the 10.19 to 10.27 pages of the user manual.
Regards:
Igor -
Virtual column based partitioning
Hi,
we have a non-partitioned table in a production database and wish to partition it based on an expression. Since we are on 11.2 the first thing that comes to mind is virtual column based partitioning. The "problem" is that in order to partition by a virtual column, you have to create one, and adding a new column to a table could break any application that doesn't reference the existing columns by name, e.g. "SELECT *" or. "INSERT INTO table VALUES(....)".
My question is: is it possible to somehow specify the expression on which to partition directly in the "partition by" clause rather than specifying it as a virtual column definition?
Example:
Instead of this..
SQL> create table test (
2 id number not null,
3 content varchar2(10),
4 record_type varchar2(1) generated always as (case when (substr(content, 1, 1)='B' and not substr(content, 1, 3)='Bxy') then 'B' else 'A' end) virtual
5 )
6 partition by list(record_type)
7 (
8 partition partA values ('A'),
9 partition partB values ('B')
10 );
Table created...I'd like to use something like this:
SQL> create table test (
2 id number not null,
3 content varchar2(10)
4 )
5 partition by list((case when (substr(content, 1, 1)='B' and not substr(content, 1, 3)='Bxy') then 'B' else 'A' end))
6 (
7 partition partA values ('A'),
8 partition partB values ('B')
9 );
partition by list((case when (substr(content, 1, 1)='B' and not substr(content, 1, 3)='Bxy') then 'B' else 'A' end))
ERROR at line 5:
ORA-00904: : invalid identifierThank you in advance for any answers.
Regards,
Jureadding a new column to a table could break any application that doesn't reference the existing columns by name, e.g. "SELECT *" or. "INSERT INTO table VALUES(....)". "Ok, i got it. You mean, in application you are using select * from yourtable; and those data is being used by a datagrid or any control, then where that application will show / handle the new column data right ?
Yes, thats why DBA and developers do SDLC (Software Development Life Cycle); that our table will be looks like this, these will be columns, these will be their data types, these will be followed in naming convention, privileges, indexes, storage parameters, constraints, dependent objects etc. Now after creating the table, you found a need to add a column, it means there was some lapses happened at the design time/phase or business requirements are newly defined.
So, as far as concerned of select * ... ; you have to change in the application by :
select col1, col2, new_col from your table... (as per order of your datagrid control columns). There is no other solution, you have to change in application code at every place where you have used select * and if those statements are being merged / deals into a control)
New column addition will hamper only at select * from... not with any INSERT/UPDATE/DELETE, because if they are running fine it means, they have well written column references. For DMLs you need not worry so far.
By the way, what is your technology for application ? I have worked on couple of applications in ASP.NET with using datagrid which auto add/removes the columns in itself as per cursor result (not rememberring the exact property of it though)
Regards
Girish Sharma -
Partition Exchange Loading (PEL)
Hi everyone,
I'm trying to set up a mapping in Oracle Warehouse Builder 9.0.4 to use Partition Exchange Loading.
When running, I get the warning: PELWarningRTV1003
Does anyone know what this message means, and where I can find information about such error messages?
Thanks for your help!
Best regards,
Ronald OmmundsenThe error means you are trying to swap a partition that still contains data in a configuration where OWB expects an empty partition. How did you set the "Replace existing data in Target Partition" configuration parameter?
Also, for more details on PEL, review the 10.19 to 10.27 pages of the user manual.
Regards:
Igor -
Partition exchange loading for specific subpartitions
Hi All,
Looking at an archive strategy - where we have to archive a specific dataset.
Rather than a insert/delete routine - I was thinking of using partition exchange.
The to-be archived table is interval range partitioned on date, with a list subpartition on country.
It is for specific countries that I want to partition exchange.
create table
test_table
(tbl_id number,
country varchar2(2),
sales_dt date,
volume number)
partition by range (sales_dt) interval (NUMTOYMINTERVAL(1,'Month'))
subpartition by list (country)
Subpartition template
(subpartition p_ireland values ('IR'),
subpartition p_france values ('FR'),
subpartition p_other values (DEFAULT))
(partition before_2008 values less than (to_date('01-JAN-2008','DD-MON-YYYY'))); The data loaded falls into the partitions and subpartitions correctly. All the partitions names are system generated.
When I come to partition exchange for all the 'FR' subpartitions- I can't determine the logic.
Using
Alter table test_table
exchange subpartition system_generated_name
with table TEST_TABLE_ARCH;I can swap out a specific 'known' subpartition.
I know you can use the 'for' logic with Oracle 11g but can't get the syntax to work.
Any ideas?The error means you are trying to swap a partition that still contains data in a configuration where OWB expects an empty partition. How did you set the "Replace existing data in Target Partition" configuration parameter?
Also, for more details on PEL, review the 10.19 to 10.27 pages of the user manual.
Regards:
Igor -
Have anyone had success with this feature in OWB? I've just attempted it but got an "ORA-12841: Cannot alter the session parallel DML state within a transaction". Is there a property somewhere to stop it from generating these alter sessions stmt?
TIA
Hong
Environment:
OWB version 9.0.2.62.3
Oracle9i EE 9.0.1.3.0
Solaris 2.7There is a number of restrictions when using Partition Exchange, please check these conditions are true:
- The partition you are loading into is empty,
- The index is local (i.e. every partition has it's own index),
- All the data you are loading fits into the partition (this is a primary suspect in your case),
- Loading tipe is INSERT (DELETE/INSERT, TRUNCATE/INSERT, CHECK/INSERT should work bu you can get warnings during generation),
Regards:
Igor -
Re: Virtual Columns and Import/Export
Edited by the moderator:
This question was moved to a new thread since the last thread was over 1 year old. The basic question is:
table has virtual columns based on a schema function but tables are created before the function. Is there a solution for this:
end edit:
I've encountered the same issue. Does anyone know there is a solution to this yet?
Thanks,
Dave
Edited by: Dean Gagne on Sep 12, 2012 4:02 PMI branched to a new thread since that thread was over a year old.
Anyway, I would contact Oracle Support to see if there is a fix for this for the version of Oracle that you are using. This has been fixed and backported, but I don't know if that it was backported to your version or not.
The real problem is that the virtual column needed to be created when the table was created, but the function was not imported yet. As a work-around you could create the schema and then just import the functions first. Not ideal, but it may get you past this issue for now.
The right way is to get a patch.
Dean -
RTV-20003: Warning: Cannot perform Partition Exchange Loading
Hi,
We have a unique situation in which the data has to be loaded 4 times each month to the fact table. The fact table is partitioned by month. We have configured the mappings so that DIRECT is false and REPLACE DATA option is also false (so that we don't loose exisiting data, if any). When the data is loaded to the fact for the first time then PEL is performed but when data is loaded for 2nd, 3rd and 4th time in the current partition OWB issues a warning (RTV-20003). We understand that in these cases data is still loaded but without using PEL. Is there any way to force OWB to perform PEL all 4 times without lossing the exisiting data in the current partition?
Thanks, YashuHi, you can't use PEL to add data to an existing partition: by definition PEL swaps the rows in a regular, non-partitioned table with the rows in 1 partition of a partitioned table. Or better said, it swaps the table data segment with the partition data segment, and possibly the corresponding index segments if the indexes match and the part.table indexes are local. This means you are not really moving any rows so you can't add any to the partition using PEL.
As a safety net, OWB provides "replace data = false" by default so you don't trash your data.
If the 4 loads/month are 1 per week, you can consider creating e.g. 4 week partitions instead of month partitions. OWB PEL can't handle weeks: if you follow this route you should disable OWB PEL and exchange partitions 'by hand' inside a stored procedure called in the postmapping. This can be worth if you have really big volumes or if you want to feed your fact table very fast, staging new rows and then swapping them in almost instantaneously. You should evaluate your index rebuild speed requirements too.
Hope this helps, Antonio -
Partition exchange loading with a cube as target
The owb does'nt generate pel-code, if we use a cube as the target of the mapping. There are no error messages, but the package does'nt contain the pel-code. If we use a normal partitioned table as the target, the codes is generated. Does anybody know if this (cube as a target of a pel-Mapping) is supported by the owb or wether we have to use a normal table.
This sounds like a bug. PEL should at least inform users about why it doesn't show up. Please file an iTAR with Oracle Support and include a MDL file.
-
Partition by virtual column, select - sinlgle partition on two columns
Pls, I have a question - we have table with COLUMNs:
-- TIME_KEY - julian - date value (to_char(sysdate, 'J')) - we would like to have virtual date value:
-- TIME_ID - virtual column with interval partitioning (great!)
CREATE TABLE lsd_cntr_pokus
( time_key NUMBER not NULL
, time_ID AS (to_date(time_key,'J'))
, cntr_key NUMBER not NULL
---...etc
PARTITION BY RANGE (time_ID) INTERVAL (NUMTOYMINTERVAL(1,'MONTH'))
(PARTITION part_2007 VALUES LESS THAN
(TO_DATE('01-JAN-2007','dd-MON-yyyy'))
But then - is it possible to somehow define this table,
so both selects:
SELECT * FROM lsd_cntr_pokus
WHERE time_key = to_char(TO_DATE('01.01.2007', 'DD.MM.YYYY'),'j') ;
SELECT * FROM lsd_cntr_pokus
WHERE time_id = TO_DATE('01.01.2007', 'DD.MM.YYYY') ;
use PARTITION RANGE SINGLE?
Thanks for any help,
Regards
Edited by: vrbcik on Dec 10, 2012 3:39 PMvrbcik wrote:
Pls, I have a question - we have table with COLUMNs:
-- TIME_KEY - julian - date value (to_char(sysdate, 'J')) - we would like to have virtual date value:
-- TIME_ID - virtual column with interval partitioning (great!)
CREATE TABLE lsd_cntr_pokus
( time_key NUMBER not NULL
, time_ID AS (to_date(time_key,'J'))
, cntr_key NUMBER not NULL
---...etc
PARTITION BY RANGE (time_ID) INTERVAL (NUMTOYMINTERVAL(1,'MONTH'))
(PARTITION part_2007 VALUES LESS THAN
(TO_DATE('01-JAN-2007','dd-MON-yyyy'))
But then - is it possible to somehow define this table,
so both selects:
SELECT * FROM lsd_cntr_pokus
WHERE time_key = to_char(TO_DATE('01.01.2007', 'DD.MM.YYYY'),'j') ;
SELECT * FROM lsd_cntr_pokus
WHERE time_id = TO_DATE('01.01.2007', 'DD.MM.YYYY') ;
use PARTITION RANGE SINGLE?
Thanks for any help,
Regards
Edited by: vrbcik on Dec 10, 2012 3:39 PMHi,
I'm afraid that, with this partition definition, partition pruning is working only when you use your virtual column time_id in your query.
According to documentation Information That Can Be Used for Partition Pruning:
Virtual column-based partitioned tables benefit from partition pruning for statements that use the virtual column-defining expression in the SQL statement.Maybe some tuning expert can confirm this or give another advice.
Regards.
Al -
Range partitioning on virtual column based on binary xmltype column
Alright, our DBA finally got around to upgrading to 11.2.0.2. Now I'm running into another issue:
CREATE TABLE USER.DI_D2
ID NUMBER(19, 0) NOT NULL ,
XML SYS.XMLTYPE ,
PRIMARY KEY ( ID )
XMLTYPE XML STORE AS SECUREFILE BINARY XML
VIRTUAL COLUMNS
ts AS (TO_TIMESTAMP(extractvalue(xml,'/d:d/c:dHeader/c:creationTime',
'xmlns:d="http://www.example.com/m/d/schema/di"
xmlns:c="http://www.example.com/m/schema/common"'),'YYYY-MM-DD"T"HH24:MI:SS'))
PARTITION BY RANGE (ts)
PARTITION d_p2012_07 VALUES LESS THAN (TO_DATE('1-8-2012','DD-MM-YYYY')),
PARTITION d_px VALUES LESS THAN (MAXVALUE)
);On our old 11.2.0.1 install this command works fine (tho due to other issues 11.2.0.1 doesn't work for our search queries)
On our 11.2.0.2 install, I get the following error:
Error at Command Line:10 Column:37
Error report:
SQL Error: ORA-14513: Partitiekolom mag niet van het gegevenstype object zijn.
14513. 00000 - "partitioning column may not be of object datatype"
*Cause: Partitioning column specified by the user was an object datatype
(object, REF, nested table, array) which is illegal.
*Action: Ensure that no partitioning column is an object datatype.Anyone know what's up with that? What changed between the 2 DB versions that could cause this to fail?Alright, seems that's just a display issue then.
Looking in user_lobs like suggested above gives
TABLE_NAME COLUMN_NAME SECUREFILE
DI_D XMLDATA YES I was opening the table in SQL Developer and then looking in the tab SQL (12th tab); with a XmlType table it seems to always show Basicfile even if it's actually a Securefile.
I'd like to use the suggested xmlcast/xmlquery solution, however it doesn't seem to play well with our custom timestamp format.
"CREATION_TIME" AS (XMLCAST(XMLQUERY('declare default element namespace "http://www.example.com/m/d/schema/i";declare namespace c="http://www.example.com/m/schema/common";/d/c:dHeader/c:creationTime' PASSING OBJECT_VALUE RETURNING CONTENT) AS TIMESTAMP))
Error at Command Line:1 Column:0
Error report:
SQL Error: ORA-54002: In de uitdrukking van een virtuele kolom kunnen alleen zuivere functies worden opgegeven.
"CREATION_TIME" AS (TO_TIMESTAMP(XMLQUERY('declare default element namespace "http://www.example.com/m/d/schema/i";declare namespace c="http://www.example.com/m/schema/common";/d/c:dHeader/c:creationTime' PASSING OBJECT_VALUE RETURNING CONTENT),'YYYY-MM-DD"T"HH24:MI:SS'))
Error at Command Line:9 Column:45
Error report:
SQL Error: ORA-00932: inconsistente gegevenstypen: - verwacht, - gekregen
00932. 00000 - "inconsistent datatypes: expected %s got %s"
*Cause:
*Action:
"CREATION_TIME" AS (TO_TIMESTAMP(EXTRACTVALUE("OBJECT_VALUE",'/di:d/c:dHeader/c:creationTime','xmlns:di="http://www.example.com/m/d/schema/i" xmlns:c="http://www.example.com/m/schema/common"'),'YYYY-MM-DD"T"HH24:MI:SS'))
table "USER"."DI_D" created. -
Range partition by a virtual column derived from XMLTYPE
I want to create table and partition it by interval partion (range partition) on a virtual column which is derived from XMLTYPE i get ora-14513 error.
create table dicom_archive_virtual
id integer not null primary key,
parent_id integer, -- where this image is created from
dcm_filename varchar2(60), -- DICOM image file name from import
description varchar2(100), -- description of the image
dicom orddicom, -- DICOM data
image ordimage, -- DICOM data in JPEG format
thumb ordimage, -- DICOM data in JPEG thumbnail
metadata xmltype, -- user customized metadata
isAnonymous integer, -- accessible flag for the research role.
study_date date as
(to_date(substr(extractValue(metadata,'//DATE/text()'),1,10),'yyyy-mm-dd')) virtual)
PARTITION BY RANGE (study_date)
INTERVAL(NUMTOYMINTERVAL(1, 'MONTH'))
( PARTITION p_2005 VALUES LESS THAN (TO_DATE('1-1-2006', 'DD-MM-YYYY')),
PARTITION p_2006 VALUES LESS THAN (TO_DATE('1-1-2007', 'DD-MM-YYYY')),
PARTITION p_2007 VALUES LESS THAN (TO_DATE('1-1-2008', 'DD-MM-YYYY'))
Study_date is a virtual colum which is derived from the column metadata which is of type XMLTYPE,so when i partition on this virtual column i get the follwoing error
SQL Error: ORA-14513: partitioning column may not be of object datatype
So i want to know whether this is not possible or there is any other alternative to achieve this.I want to create table and partition it by interval partion (range partition) on a virtual column which is derived from XMLTYPE Congratulations on trying to fit as many cutting edge techniques into a single line as possible.
So i want to know whether this is not possible ...The error message is pretty unequivocal.
...or there is any other alternative to achieve this.What you could try is materializing the virtual column, i.e. adding an actual date column which you populate with that code in the insert and update triggers. Inelegant but then complexity often is.
Cheers, APC
blog : http://radiofreetooting.blogspot.com -
Virtual column partitioning - explain plan takes lot of time.
I have some problem with table with partitioning based on virtual column.
Explain plan generates for some simple select 2-5 minutes,
but the same select but without part of where clausule generate in secounds.
In both query there is the same explain plan.
Could someone explain why?
Table:
CREATE TABLE "SUBSCRIPTION"
"CUSTOMER_ID" VARCHAR2(100 BYTE),
"IDENT_SOURCE_ID" VARCHAR2(20 BYTE),
"ACCOUNT_ID" VARCHAR2(100 BYTE),
"MSISDN" VARCHAR2(500 BYTE),
"IMSI" VARCHAR2(500 BYTE),
"SIM" VARCHAR2(500 BYTE),
"IMEI" VARCHAR2(500 BYTE),
"MEID" VARCHAR2(15 BYTE),
"EMAIL" VARCHAR2(100 BYTE),
"TELCOOP" VARCHAR2(1000 BYTE),
"MSISDN_TYPE" VARCHAR2(20 BYTE),
"GSM" NUMBER(1,0),
"CDMA" NUMBER(1,0),
"VALID_FROM" DATE,
"VALID_TO" DATE,
"MSISDN_HASH" NUMBER(3,0) GENERATED ALWAYS AS (MOD(TO_NUMBER(NVL2(RTRIM(TRANSLATE(NVL(SUBSTR("MSISDN",-3),NVL("MSISDN",'err')),'123456789','000000000'),'0'),'-1',NVL(SUBSTR("MSISDN",-3),"MSISDN"))),125)) VIRTUAL VISIBLE, --generali mod from 3 last digits of msisdn
) PARTITION BY LIST ( "MSISDN_HASH" )
PARTITION "PCHR" VALUES ( -1 )
PARTITION "P000" VALUES ( 0 )
PARTITION "P001" VALUES ( 1 )
... and so on till...
PARTITION "P124" VALUES (124)
PARALLEL 4;
Slow select:
select CUSTOMER_ID, IDENT_SOURCE_ID, ACCOUNT_ID, MSISDN, IMSI, SIM, IMEI, MEID, EMAIL, TELCOOP
from dbident2.subscription
where MSISDN = '600489461'
AND MSISDN_HASH = 86
AND VALID_FROM <=TO_DATE('2012-02-10 00:00:00', 'YYYY-MM-DD HH24:MI:SS')
Fast select:
select CUSTOMER_ID, IDENT_SOURCE_ID, ACCOUNT_ID, MSISDN, IMSI, SIM, IMEI, MEID, EMAIL, TELCOOP
from dbident2.subscription
where MSISDN = '600489461'
AND MSISDN_HASH = 86--Slower select trace:
Registered qb: SEL$1 0xf4ea2a20 (PARSER)
QUERY BLOCK SIGNATURE
signature (): qb_name=SEL$1 nbfros=1 flg=0
fro(0): flg=4 objn=848731 hint_alias="SUBSCRIPTION"@"SEL$1"
SPM: statement not found in SMB
SPM: statement not a candidate for auto-capture
Dynamic sampling level auto-adjusted from 6 to 6
Automatic degree of parallelism (ADOP)
Automatic degree of parallelism is disabled: Parameter.
PM: Considering predicate move-around in query block SEL$1 (#0)
Predicate Move-Around (PM)
OPTIMIZER INFORMATION
----- Current SQL Statement for this session (sql_id=afjvvjmx6tqgr) -----
explain plan for
select CUSTOMER_ID, IDENT_SOURCE_ID, ACCOUNT_ID, MSISDN, IMSI, SIM, IMEI, MEID, EMAIL, TELCOOP
from subscription
where MSISDN = '600600600' AND MSISDN_HASH = 86
AND VALID_FROM <=TO_DATE('2012-02-10 00:00:00', 'YYYY-MM-DD HH24:MI:SS')
Legend
The following abbreviations are used by optimizer trace.
CBQT - cost-based query transformation
JPPD - join predicate push-down
OJPPD - old-style (non-cost-based) JPPD
FPD - filter push-down
PM - predicate move-around
CVM - complex view merging
SPJ - select-project-join
SJC - set join conversion
SU - subquery unnesting
OBYE - order by elimination
OST - old style star transformation
ST - new (cbqt) star transformation
CNT - count(col) to count(*) transformation
JE - Join Elimination
JF - join factorization
SLP - select list pruning
DP - distinct placement
qb - query block
LB - leaf blocks
DK - distinct keys
LB/K - average number of leaf blocks per key
DB/K - average number of data blocks per key
CLUF - clustering factor
NDV - number of distinct values
Resp - response cost
Card - cardinality
Resc - resource cost
NL - nested loops (join)
SM - sort merge (join)
HA - hash (join)
CPUSPEED - CPU Speed
IOTFRSPEED - I/O transfer speed
IOSEEKTIM - I/O seek time
SREADTIM - average single block read time
MREADTIM - average multiblock read time
MBRC - average multiblock read count
MAXTHR - maximum I/O system throughput
SLAVETHR - average slave I/O throughput
dmeth - distribution method
1: no partitioning required
2: value partitioned
4: right is random (round-robin)
128: left is random (round-robin)
8: broadcast right and partition left
16: broadcast left and partition right
32: partition left using partitioning of right
64: partition right using partitioning of left
256: run the join in serial
0: invalid distribution method
sel - selectivity
ptn - partition
PARAMETERS USED BY THE OPTIMIZER
PARAMETERS WITH ALTERED VALUES
Compilation Environment Dump
pgamax_size = 1258280 KB
parallel_query_default_dop = 32
db_file_multiblock_read_count = 16
Bug Fix Control Environment
PARAMETERS IN OPT_PARAM HINT
Column Usage Monitoring is ON: tracking level = 1
Considering Query Transformations on query block SEL$1 (#0)
Query transformations (QT)
JF: Checking validity of join factorization for query block SEL$1 (#0)
JF: Bypassed: not a UNION or UNION-ALL query block.
ST: not valid since star transformation parameter is FALSE
TE: Checking validity of table expansion for query block SEL$1 (#0)
TE: Bypassed: No relevant table found.
CBQT bypassed for query block SEL$1 (#0): no complex view, sub-queries or UNION (ALL) queries.
CBQT: Validity checks failed for afjvvjmx6tqgr.
CSE: Considering common sub-expression elimination in query block SEL$1 (#0)
Common Subexpression elimination (CSE)
CSE: CSE not performed on query block SEL$1 (#0).
OBYE: Considering Order-by Elimination from view SEL$1 (#0)
Order-by elimination (OBYE)
OBYE: OBYE bypassed: no order by to eliminate.
CVM: Considering view merge in query block SEL$1 (#0)
query block SEL$1 (#0) unchanged
Considering Query Transformations on query block SEL$1 (#0)
Query transformations (QT)
JF: Checking validity of join factorization for query block SEL$1 (#0)
JF: Bypassed: not a UNION or UNION-ALL query block.
ST: not valid since star transformation parameter is FALSE
TE: Checking validity of table expansion for query block SEL$1 (#0)
TE: Bypassed: No relevant table found.
CBQT bypassed for query block SEL$1 (#0): no complex view, sub-queries or UNION (ALL) queries.
CBQT: Validity checks failed for afjvvjmx6tqgr.
CSE: Considering common sub-expression elimination in query block SEL$1 (#0)
Common Subexpression elimination (CSE)
CSE: CSE not performed on query block SEL$1 (#0).
SU: Considering subquery unnesting in query block SEL$1 (#0)
Subquery Unnest (SU)
SJC: Considering set-join conversion in query block SEL$1 (#0)
Set-Join Conversion (SJC)
SJC: not performed
PM: Considering predicate move-around in query block SEL$1 (#0)
Predicate Move-Around (PM)
PM: PM bypassed: Outer query contains no views.
PM: PM bypassed: Outer query contains no views.
query block SEL$1 (#0) unchanged
FPD: Considering simple filter push in query block SEL$1 (#0)
"SUBSCRIPTION"."MSISDN"='600600600' AND "SUBSCRIPTION"."MSISDN_HASH"=86 AND "SUBSCRIPTION"."VALID_FROM"<=TO_DATE(' 2012-02-10 00:00:00', 'syyyy-mm-dd hh24:mi:ss')
try to generate transitive predicate from check constraints for query block SEL$1 (#0)
finally: "SUBSCRIPTION"."MSISDN"='600600600' AND "SUBSCRIPTION"."MSISDN_HASH"=86 AND "SUBSCRIPTION"."VALID_FROM"<=TO_DATE(' 2012-02-10 00:00:00', 'syyyy-mm-dd hh24:mi:ss')
apadrv-start sqlid=12053738773107497463
call(in-use=8176, alloc=32712), compile(in-use=114912, alloc=116848), execution(in-use=175432, alloc=178928)
Peeked values of the binds in SQL statement
Final query after transformations:******* UNPARSED QUERY IS *******
SELECT "SUBSCRIPTION"."CUSTOMER_ID" "CUSTOMER_ID","SUBSCRIPTION"."IDENT_SOURCE_ID" "IDENT_SOURCE_ID","SUBSCRIPTION"."ACCOUNT_ID" "ACCOUNT_ID","SUBSCRIPTION"."MSISDN" "MSISDN","SUBSCRIPTION"."IMSI" "IMSI","SUBSCRIPTION"."SIM" "SIM","SUBSCRIPTION"."IMEI" "IMEI","SUBSCRIPTION"."MEID" "MEID","SUBSCRIPTION"."EMAIL" "EMAIL","SUBSCRIPTION"."TELCOOP" "TELCOOP" FROM "DBIDENT2"."SUBSCRIPTION" "SUBSCRIPTION" WHERE "SUBSCRIPTION"."MSISDN"='600600600' AND "SUBSCRIPTION"."MSISDN_HASH"=86 AND "SUBSCRIPTION"."VALID_FROM"<=TO_DATE(' 2012-02-10 00:00:00', 'syyyy-mm-dd hh24:mi:ss')
kkoqbc: optimizing query block SEL$1 (#0)
call(in-use=8320, alloc=32712), compile(in-use=115880, alloc=116848), execution(in-use=175432, alloc=178928)
kkoqbc-subheap (create addr=0x2b24ebece950)
QUERY BLOCK TEXT
select CUSTOMER_ID, IDENT_SOURCE_ID, ACCOUNT_ID, MSISDN, IMSI, SIM, IMEI, MEID, EMAIL, TELCOOP
from subscription
where MSISDN = '600600600' AND MSISDN_HASH = 86
AND VALID_FROM <=TO_DATE('2012-02-10 00:00:00', 'YYYY-MM-DD HH24:MI:SS')
QUERY BLOCK SIGNATURE
signature (optimizer): qb_name=SEL$1 nbfros=1 flg=0
fro(0): flg=0 objn=848731 hint_alias="SUBSCRIPTION"@"SEL$1"
SYSTEM STATISTICS INFORMATION
Using NOWORKLOAD Stats
CPUSPEEDNW: 714 millions instructions/sec (default is 100)
IOTFRSPEED: 4096 bytes per millisecond (default is 4096)
IOSEEKTIM: 10 milliseconds (default is 10)
MBRC: -1 blocks (default is 16)
BASE STATISTICAL INFORMATION
Table Stats::
Table: SUBSCRIPTION Alias: SUBSCRIPTION Partition [87]
#Rows: 218104 #Blks: 11008 AvgRowLen: 129.00 ChainCnt: 0.00
#Rows: 218104 #Blks: 11008 AvgRowLen: 129.00 ChainCnt: 0.00
Index Stats::
Index: SUBSCRIPTION_NDX_ACCID Col#: 3
LVLS: 3 #LB: 121036 #DK: 9767936 LB/K: 1.00 DB/K: 1.00 CLUF: 13921256.00
Index: SUBSCRIPTION_NDX_CUSID Col#: 1 2 18
LVLS: 3 #LB: 142123 #DK: 24665396 LB/K: 1.00 DB/K: 1.00 CLUF: 24842146.00
Index: SUBSCRIPTION_NDX_EMAIL Col#: 9
LVLS: 2 #LB: 8365 #DK: 1361827 LB/K: 1.00 DB/K: 1.00 CLUF: 1361798.00
Index: SUBSCRIPTION_NDX_EXT1 Col#: 19
LVLS: 2 #LB: 65756 #DK: 67792 LB/K: 1.00 DB/K: 80.00 CLUF: 5446485.00
Index: SUBSCRIPTION_NDX_IMEI Col#: 7
LVLS: 2 #LB: 44539 #DK: 9199616 LB/K: 1.00 DB/K: 1.00 CLUF: 10413439.00
Index: SUBSCRIPTION_NDX_IMSI Col#: 5
LVLS: 3 #LB: 92914 #DK: 12846080 LB/K: 1.00 DB/K: 1.00 CLUF: 23472821.00
Index: SUBSCRIPTION_NDX_MEID Col#: 8
LVLS: 1 #LB: 132 #DK: 12585 LB/K: 1.00 DB/K: 1.00 CLUF: 18419.00
Index: SUBSCRIPTION_NDX_MSISDN Col#: 4 PARTITION [87]
LVLS: 2 #LB: 1092 #DK: 74848 LB/K: 1.00 DB/K: 2.00 CLUF: 191920.00
LVLS: 2 #LB: 1092 #DK: 74848 LB/K: 1.00 DB/K: 2.00 CLUF: 191920.00
Index: SUBSCRIPTION_NDX_SIM Col#: 6
LVLS: 2 #LB: 88153 #DK: 13169664 LB/K: 1.00 DB/K: 1.00 CLUF: 24727298.00
Index: SUBSCRIPTION_NDX_SRCID Col#: 2 17
LVLS: 2 #LB: 81729 #DK: 4 LB/K: 20432.00 DB/K: 257314.00 CLUF: 1029257.00
Access path analysis for SUBSCRIPTION
SINGLE TABLE ACCESS PATH
Single Table Cardinality Estimation for SUBSCRIPTION[SUBSCRIPTION]
*** 2012-06-12 12:34:53.283
** Performing dynamic sampling initial checks. **
Column (#14):
NewDensity:0.000020, OldDensity:0.000366 BktCnt:254, PopBktCnt:22, PopValCnt:1, NDV:46252
Column (#14):
NewDensity:0.000163, OldDensity:0.000378 BktCnt:254, PopBktCnt:12, PopValCnt:1, NDV:5852
Column (#14): VALID_FROM( Part#: 87
AvgLen: 8 NDV: 5852 Nulls: 2 Density: 0.000163 Min: 2450364 Max: 2456082
Histogram: HtBal #Bkts: 254 UncompBkts: 254 EndPtVals: 244
Column (#14): VALID_FROM(
AvgLen: 8 NDV: 5852 Nulls: 2 Density: 0.000163 Min: 2450364 Max: 2456082
Histogram: HtBal #Bkts: 254 UncompBkts: 254 EndPtVals: 244
Column (#4):
NewDensity:0.000000, OldDensity:0.000000 BktCnt:254, PopBktCnt:0, PopValCnt:0, NDV:9730048
Column (#4):
NewDensity:0.000013, OldDensity:0.000033 BktCnt:254, PopBktCnt:0, PopValCnt:0, NDV:74848
Column (#4): MSISDN( Part#: 87
AvgLen: 10 NDV: 74848 Nulls: 0 Density: 0.000013
Histogram: HtBal #Bkts: 254 UncompBkts: 254 EndPtVals: 255
Column (#4): MSISDN(
AvgLen: 10 NDV: 74848 Nulls: 0 Density: 0.000013
Histogram: HtBal #Bkts: 254 UncompBkts: 254 EndPtVals: 255
** Dynamic sampling initial checks returning TRUE (level = 6).
*** 2012-06-12 12:34:53.284
** Generated dynamic sampling query:
query text :
SELECT /* OPT_DYN_SAMP */ /*+ ALL_ROWS IGNORE_WHERE_CLAUSE NO_PARALLEL(SAMPLESUB) opt_param('parallel_execution_enabled', 'false') NO_PARALLEL_INDEX(SAMPLESUB) NO_SQL_TUNE */ NVL(SUM(C1),0), NVL(SUM(C2),0) FROM (SELECT /*+ IGNORE_WHERE_CLAUSE NO_PARALLEL("SUBSCRIPTION") FULL("SUBSCRIPTION") NO_PARALLEL_INDEX("SUBSCRIPTION") */ 1 AS C1, CASE WHEN "SUBSCRIPTION"."MSISDN"='600600600' AND "SUBSCRIPTION"."VALID_FROM"<=TO_DATE(' 2012-02-10 00:00:00', 'syyyy-mm-dd hh24:mi:ss') THEN 1 ELSE 0 END AS C2 FROM "DBIDENT2"."SUBSCRIPTION" SAMPLE BLOCK (1.153706 , 1) SEED (1) "SUBSCRIPTION" WHERE "SUBSCRIPTION"."MSISDN"='600600600' AND "SUBSCRIPTION"."VALID_FROM"<=TO_DATE(' 2012-02-10 00:00:00', 'syyyy-mm-dd hh24:mi:ss')) SAMPLESUB
*** 2012-06-12 12:36:44.452
** Executed dynamic sampling query:
level : 6
sample pct. : 1.153706
total partitions : 1
partitions for sampling : 1
actual sample size : 342182
filtered sample card. : 0
orig. card. : 218104
block cnt. table stat. : 11008
block cnt. for sampling: 11008
max. sample block cnt. : 128
sample block cnt. : 127
min. sel. est. : 0.00001260
** Not using dynamic sampling for single table sel. or cardinality.
DS Failed for : ----- Current SQL Statement for this session (sql_id=afjvvjmx6tqgr) -----
explain plan for
select CUSTOMER_ID, IDENT_SOURCE_ID, ACCOUNT_ID, MSISDN, IMSI, SIM, IMEI, MEID, EMAIL, TELCOOP
from subscription
where MSISDN = '600600600' AND MSISDN_HASH = 86
AND VALID_FROM <=TO_DATE('2012-02-10 00:00:00', 'YYYY-MM-DD HH24:MI:SS')
Column (#21):
NewDensity:0.002912, OldDensity:0.000000 BktCnt:14078, PopBktCnt:14078, PopValCnt:126, NDV:126
Column (#21): MSISDN_HASH( Part#: 87
AvgLen: 3 NDV: 1 Nulls: 0 Density: 0.000002 Min: 86 Max: 86
Histogram: Freq #Bkts: 1 UncompBkts: 13365 EndPtVals: 1
Column (#21): MSISDN_HASH(
AvgLen: 3 NDV: 1 Nulls: 0 Density: 0.000002 Min: 86 Max: 86
Histogram: Freq #Bkts: 1 UncompBkts: 13365 EndPtVals: 1
Column (#1):
NewDensity:0.000000, OldDensity:0.000241 BktCnt:254, PopBktCnt:31, PopValCnt:2, NDV:9768960
Column (#1):
NewDensity:0.000009, OldDensity:0.000250 BktCnt:254, PopBktCnt:36, PopValCnt:3, NDV:99208
Column (#1): CUSTOMER_ID( Part#: 87
AvgLen: 11 NDV: 99208 Nulls: 0 Density: 0.000009
Histogram: HtBal #Bkts: 254 UncompBkts: 254 EndPtVals: 222
Column (#1): CUSTOMER_ID(
AvgLen: 11 NDV: 99208 Nulls: 0 Density: 0.000009
Histogram: HtBal #Bkts: 254 UncompBkts: 254 EndPtVals: 222
Column (#2):
NewDensity:0.000639, OldDensity:0.000000 BktCnt:14078, PopBktCnt:14078, PopValCnt:3, NDV:3
Column (#2):
NewDensity:0.000786, OldDensity:0.000002 BktCnt:13365, PopBktCnt:13365, PopValCnt:3, NDV:3
Column (#2): IDENT_SOURCE_ID( Part#: 87
AvgLen: 5 NDV: 3 Nulls: 0 Density: 0.000786
Histogram: Freq #Bkts: 3 UncompBkts: 13365 EndPtVals: 3
Column (#2): IDENT_SOURCE_ID(
AvgLen: 5 NDV: 3 Nulls: 0 Density: 0.000786
Histogram: Freq #Bkts: 3 UncompBkts: 13365 EndPtVals: 3
ColGroup (#1, Index) SUBSCRIPTION_NDX_CUSID
Col#: 1 2 18 CorStregth: -1.00
ColGroup (#2, Index) SUBSCRIPTION_NDX_SRCID
Col#: 2 17 CorStregth: -1.00
ColGroup Usage:: PredCnt: 2 Matches Full: Partial:
***** Virtual column Adjustment ******
Column name MSISDN_HASH
cost_cpu 2300.00
cost_io 179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.00
***** End virtual column Adjustment ******
Table: SUBSCRIPTION Alias: SUBSCRIPTION
Card: Original: 218104.000000 Rounded: 3 Computed: 2.75 Non Adjusted: 2.75
Access Path: TableScan
Cost: 2420.71 Resp: 672.42 Degree: 0
Cost_io: 2409.00 Cost_cpu: 100334308
Resp_io: 669.17 Resp_cpu: 27870641
kkofmx: index filter:"SUBSCRIPTION"."MSISDN_HASH"=86
***** Virtual column Adjustment ******
Column name MSISDN_HASH
cost_cpu 2300.00
cost_io 179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.00
***** End virtual column Adjustment ******
Access Path: index (AllEqRange)
Index: SUBSCRIPTION_NDX_MSISDN
resc_io: 6.00 resc_cpu: 36840
ix_sel: 0.000013 ix_sel_with_filters: 0.000013
***** Logdef predicate Adjustment ******
Final IO cst 0.00 , CPU cst 2300.00
***** End Logdef Adjustment ******
Cost: 6.01 Resp: 6.01 Degree: 1
Best:: AccessPath: IndexRange
Index: SUBSCRIPTION_NDX_MSISDN
Cost: 6.01 Degree: 1 Resp: 6.01 Card: 2.75 Bytes: 0
OPTIMIZER STATISTICS AND COMPUTATIONS
GENERAL PLANS
Considering cardinality-based initial join order.
Permutations for Starting Table :0
Join order[1]: SUBSCRIPTION[SUBSCRIPTION]#0
Best so far: Table#: 0 cost: 6.0051 card: 2.7487 bytes: 291
****** Recost for parallel table scan *******
Access path analysis for SUBSCRIPTION
SINGLE TABLE ACCESS PATH
Single Table Cardinality Estimation for SUBSCRIPTION[SUBSCRIPTION]
*** 2012-06-12 12:36:44.454
** Performing dynamic sampling initial checks. **
** TABLE SUBSCRIPTION Alias: SUBSCRIPTION : reused cached dynamic sampling result (failure).
ColGroup Usage:: PredCnt: 2 Matches Full: Partial:
***** Virtual column Adjustment ******
Column name MSISDN_HASH
cost_cpu 2300.00
cost_io 179769313486231570814527423731704356798070567525844996598917476803157260780028538760589558632766878171540458953514382464234321326889464182768467546703537516986049910576551282076245490090389328944075868508455133942304583236903222948165808559332123348274797826204144723168738177180919299881250404026184124858368.00
***** End virtual column Adjustment ******
Table: SUBSCRIPTION Alias: SUBSCRIPTION
Card: Original: 218104.000000 Rounded: 3 Computed: 2.75 Non Adjusted: 2.75
Access Path: TableScan
Cost: 2420.71 Resp: 672.42 Degree: 0
Cost_io: 2409.00 Cost_cpu: 100334308
Resp_io: 669.17 Resp_cpu: 27870641
Best:: AccessPath: TableScan
Cost: 672.42 Degree: 4 Resp: 672.42 Card: 2.75 Bytes: 97
Join order[1]: SUBSCRIPTION[SUBSCRIPTION]#0
Join order aborted: cost > best plan cost
(newjo-stop-1) k:0, spcnt:0, perm:1, maxperm:2000
Number of join permutations tried: 1
Enumerating distribution method (advanced)
Trying or-Expansion on query block SEL$1 (#0)
Transfer Optimizer annotations for query block SEL$1 (#0)
id=0 frofkks[i] (index start key) predicate="SUBSCRIPTION"."MSISDN"='600600600'
id=0 frofkke[i] (index stop key) predicate="SUBSCRIPTION"."MSISDN"='600600600'
id=0 frofand predicate="SUBSCRIPTION"."VALID_FROM"<=TO_DATE(' 2012-02-10 00:00:00', 'syyyy-mm-dd hh24:mi:ss')
Final cost for query block SEL$1 (#0) - All Rows Plan:
Best join order: 1
Cost: 6.0051 Degree: 1 Card: 3.0000 Bytes: 291
Resc: 6.0051 Resc_io: 6.0000 Resc_cpu: 43740
Resp: 6.0051 Resp_io: 6.0000 Resc_cpu: 43740
kkoqbc-subheap (delete addr=0x2b24ebece950, in-use=21280, alloc=32840)
kkoqbc-end:
call(in-use=252920, alloc=343912), compile(in-use=129048, alloc=133000), execution(in-use=192248, alloc=195240)
kkoqbc: finish optimizing query block SEL$1 (#0)
apadrv-end
call(in-use=252920, alloc=343912), compile(in-use=129960, alloc=133000), execution(in-use=192248, alloc=195240)
Starting SQL statement dump
user_id=115 user_name=xxx module=SQL*Plus action=
sql_id=afjvvjmx6tqgr plan_hash_value=1672204165 problem_type=3
----- Current SQL Statement for this session (sql_id=afjvvjmx6tqgr) -----
explain plan for
select CUSTOMER_ID, IDENT_SOURCE_ID, ACCOUNT_ID, MSISDN, IMSI, SIM, IMEI, MEID, EMAIL, TELCOOP
from subscription
where MSISDN = '600600600' AND MSISDN_HASH = 86
AND VALID_FROM <=TO_DATE('2012-02-10 00:00:00', 'YYYY-MM-DD HH24:MI:SS')
sql_text_length=266
sql=explain plan for
select CUSTOMER_ID, IDENT_SOURCE_ID, ACCOUNT_ID, MSISDN, IMSI, SIM, IMEI, MEID, EMAIL, TELCOOP
from subscription
where MSISDN = '600600600' AND MSISDN_HASH = 86
AND VALID_FROM <=TO_DATE('2012-02-10 00:00:00', 'YYYY-MM-DD HH2
sql=4:MI:SS')
----- Explain Plan Dump -----
----- Plan Table -----
============
Plan Table
============
-----------------------------------------------------------------------------------------------------------------------+
| Id | Operation | Name | Rows | Bytes | Cost | Time | Pstart| Pstop |
-----------------------------------------------------------------------------------------------------------------------+
| 0 | SELECT STATEMENT | | | | 6 | | | |
| 1 | PARTITION LIST SINGLE | | 3 | 291 | 6 | 00:00:01 | 88 | 88 |
| 2 | TABLE ACCESS BY LOCAL INDEX ROWID | SUBSCRIPTION | 3 | 291 | 6 | 00:00:01 | 88 | 88 |
| 3 | INDEX RANGE SCAN | SUBSCRIPTION_NDX_MSISDN| 3 | | 3 | 00:00:01 | 88 | 88 |
-----------------------------------------------------------------------------------------------------------------------+
Predicate Information:
2 - filter("VALID_FROM"<=TO_DATE(' 2012-02-10 00:00:00', 'syyyy-mm-dd hh24:mi:ss'))
3 - access("MSISDN"='600600600')
Content of other_xml column
===========================
nodeid/pflags: 1 1 db_version : 11.2.0.2
parse_schema : xxx
plan_hash : 1672204165
plan_hash_2 : 1960934971
Outline Data:
/*+
BEGIN_OUTLINE_DATA
IGNORE_OPTIM_EMBEDDED_HINTS
OPTIMIZER_FEATURES_ENABLE('11.2.0.2')
DB_VERSION('11.2.0.2')
OPT_PARAM('optimizer_dynamic_sampling' 6)
ALL_ROWS
OUTLINE_LEAF(@"SEL$1")
INDEX_RS_ASC(@"SEL$1" "SUBSCRIPTION"@"SEL$1" ("SUBSCRIPTION"."MSISDN"))
END_OUTLINE_DATA
Query Block Registry:
SEL$1 0xf4ea2a20 (PARSER) [FINAL]
call(in-use=259392, alloc=343912), compile(in-use=170344, alloc=270888), execution(in-use=344120, alloc=346656)
End of Optimizer State Dump
Dumping Hints
=============
====================== END SQL Statement Dump ======================
Edited by: user3754081 on 2012-06-12 08:07 -
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