SQLDeveloper can't generate an explain-plan when using "cube"

If I want to create an explain-plan from the following statement, I get no explain-plan:
SELECT 1
FROM dual
GROUP BY CUBE( 2, 2, 2, 2, 2, 2, 2, 2, 2 )If I now want to create an explain-plan again, I get the following message (and still no explain-plan):
http://i.imgur.com/mGO6Z.jpg
I tried this a few times and of course with a fresh db-session where i didn't run any statements before.
I get this with:
SQLDeveloper Version 3.0.04 Build MAIN-04.34 (i.e. production)
DB 9.2.0.1.0
Oracle Instant Client 11.1.0.6.0
In Toad this works btw.
(Of course it makes no sense to run it on this statement, we encountered this problem with a really big SQL-statement where "cube" was used in an inline-view. SQLDeveloper then wasn't able to generate an explain-plan for the whole-statement)
Regards
Markus

that is correct. I wanted to keep the login page redirect inside my class method so that I could do the check every time someone came to pages that require authentication. I wanted it in the LoadState method so I can do a check there, redirect
them to login page or just get a cookie and then pass that cookie to page to build the UI for the page
I can do what you are suggesting and have actually tried it but then I have to track which page to take the user to after they log in...
I have multiple clicks in the appbar and pages from where the user can come to these authentication-bound pages..
Suggestions?
Also, what am I doing wrong in my class method that it doesn't navigate to the login page in the LoadState method?
Thanks
mujno

Similar Messages

How can i paste the explain plan from toad..

Hello all
I tried taking a snap of the explain plan from toad but in this forum the paste option is disabled...please help

964145 wrote:
I tried taking a snap of the explain plan from toad but in this forum the paste option is disabled...please helpI don't know, but it is a waste of time since explain plans from Toad are not useful.
Please read the forum FAQ on providing information for a tuning request, it describes how to generate an explain plan that can be shared.
{message:id=9360003}
This is an example.
SQL> explain plan for
2 select * from dual;
Explained.
SQL> select * from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
Plan hash value: 3543395131
| Id | Operation         | Name | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT |      |     1 |     2 |     2   (0)| 00:00:01 |
|   1 | TABLE ACCESS FULL| DUAL |     1 |     2 |     2   (0)| 00:00:01 |
--------------------------------------------------------------------------

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Strange explain plan when query SYS tables

Oracle Version 9.2.0.7
We have an application that runs the following query on Oracle 9.2.0.7
SELECT T1.TABLE_NAME,T1.COLUMN_NAME, T1.SRID, T2.SDO_UB, T2.SDO_LB, T1.OWNER FROM ALL_SDO_GEOM_METADATA T1, TABLE(T1.DIMINFO) T2 WHERE T1.OWNER=UPPER(:"SYS_B_0") AND T1.TABLE_NAME=UPPER(:"SYS_B_1")
Without the self join the query is fine, but with the self join on our customers database the explain plan is doing full table scans and Hash Joins on SYS tables and takes 2 minutes.
Rows Row Source Operation
2 FILTER
2 NESTED LOOPS
1 TABLE ACCESS FULL SDO_GEOM_METADATA_TABLE
2 COLLECTION ITERATOR PICKLER FETCH
1 UNION-ALL
0 FILTER
0 NESTED LOOPS OUTER
0 HASH JOIN
37 TABLE ACCESS FULL TS$
0 HASH JOIN OUTER
0 NESTED LOOPS OUTER
0 NESTED LOOPS OUTER
0 NESTED LOOPS
1 NESTED LOOPS
1 TABLE ACCESS BY INDEX ROWID USER$
1 INDEX UNIQUE SCAN I_USER1 (object id 44)
1 TABLE ACCESS BY INDEX ROWID OBJ$
1 INDEX RANGE SCAN I_OBJ2 (object id 37)
0 TABLE ACCESS CLUSTER TAB$
1 INDEX UNIQUE SCAN I_OBJ# (object id 3)
0 TABLE ACCESS CLUSTER SEG$
0 INDEX UNIQUE SCAN I_FILE#_BLOCK# (object id 9)
0 TABLE ACCESS BY INDEX ROWID OBJ$
0 INDEX UNIQUE SCAN I_OBJ1 (object id 36)
0 TABLE ACCESS FULL USER$
0 INDEX UNIQUE SCAN I_OBJ1 (object id 36)
0 NESTED LOOPS
0 FIXED TABLE FULL X$KZSRO
0 INDEX RANGE SCAN I_OBJAUTH2 (object id 109)
0 FIXED TABLE FULL X$KZSPR
0 FILTER
0 NESTED LOOPS OUTER
0 HASH JOIN
54 TABLE ACCESS FULL USER$
0 HASH JOIN
29447 TABLE ACCESS FULL OBJ$
0 HASH JOIN OUTER
0 HASH JOIN OUTER
0 HASH JOIN OUTER
0 NESTED LOOPS
0 NESTED LOOPS OUTER
0 NESTED LOOPS OUTER
0 NESTED LOOPS
0 NESTED LOOPS
0 NESTED LOOPS
1 NESTED LOOPS
1 TABLE ACCESS BY INDEX ROWID USER$
1 INDEX UNIQUE SCAN I_USER1 (object id 44)
1 TABLE ACCESS BY INDEX ROWID OBJ$
1 INDEX RANGE SCAN I_OBJ2 (object id 37)
0 TABLE ACCESS CLUSTER TAB$
1 INDEX UNIQUE SCAN I_OBJ# (object id 3)
0 TABLE ACCESS CLUSTER TS$
0 INDEX UNIQUE SCAN I_TS# (object id 7)
0 TABLE ACCESS CLUSTER COL$
0 TABLE ACCESS CLUSTER SEG$
0 INDEX UNIQUE SCAN I_FILE#_BLOCK# (object id 9)
0 TABLE ACCESS BY INDEX ROWID OBJ$
0 INDEX UNIQUE SCAN I_OBJ1 (object id 36)
0 TABLE ACCESS CLUSTER COLTYPE$
0 TABLE ACCESS FULL USER$
0 TABLE ACCESS FULL OBJ$
0 TABLE ACCESS FULL USER$
0 INDEX UNIQUE SCAN I_OBJ1 (object id 36)
0 NESTED LOOPS
0 FIXED TABLE FULL X$KZSRO
0 INDEX RANGE SCAN I_OBJAUTH2 (object id 109)
0 FIXED TABLE FULL X$KZSPR
1 FILTER
1 NESTED LOOPS
1 NESTED LOOPS OUTER
1 NESTED LOOPS
1 TABLE ACCESS BY INDEX ROWID USER$
1 INDEX UNIQUE SCAN I_USER1 (object id 44)
1 TABLE ACCESS BY INDEX ROWID OBJ$
1 INDEX RANGE SCAN I_OBJ2 (object id 37)
0 INDEX UNIQUE SCAN I_TYPED_VIEW1 (object id 105)
1 INDEX UNIQUE SCAN I_VIEW1 (object id 104)
0 NESTED LOOPS
0 FIXED TABLE FULL X$KZSRO
0 INDEX RANGE SCAN I_OBJAUTH2 (object id 109)
0 FIXED TABLE FULL X$KZSPR
On our development database it takes 0.07 sec with no full table scans and no hash joins.
Rows Row Source Operation
2 NESTED LOOPS
1 TABLE ACCESS BY INDEX ROWID SDO_GEOM_METADATA_TABLE
1 INDEX RANGE SCAN SDO_GEOM_IDX (object id 36753)
1 UNION-ALL
0 FILTER
0 NESTED LOOPS
0 NESTED LOOPS OUTER
0 NESTED LOOPS OUTER
0 NESTED LOOPS OUTER
0 NESTED LOOPS OUTER
0 NESTED LOOPS
1 NESTED LOOPS
1 TABLE ACCESS BY INDEX ROWID USER$
1 INDEX UNIQUE SCAN I_USER1 (object id 44)
1 TABLE ACCESS BY INDEX ROWID OBJ$
1 INDEX RANGE SCAN I_OBJ2 (object id 37)
0 TABLE ACCESS CLUSTER TAB$
1 INDEX UNIQUE SCAN I_OBJ# (object id 3)
0 TABLE ACCESS BY INDEX ROWID OBJ$
0 INDEX UNIQUE SCAN I_OBJ1 (object id 36)
0 INDEX UNIQUE SCAN I_OBJ1 (object id 36)
0 TABLE ACCESS CLUSTER USER$
0 INDEX UNIQUE SCAN I_USER# (object id 11)
0 TABLE ACCESS CLUSTER SEG$
0 INDEX UNIQUE SCAN I_FILE#_BLOCK# (object id 9)
0 TABLE ACCESS CLUSTER TS$
0 INDEX UNIQUE SCAN I_TS# (object id 7)
0 NESTED LOOPS
0 FIXED TABLE FULL X$KZSRO
0 INDEX RANGE SCAN I_OBJAUTH2 (object id 109)
0 FIXED TABLE FULL X$KZSPR
0 FILTER
0 NESTED LOOPS
0 NESTED LOOPS
0 NESTED LOOPS OUTER
0 NESTED LOOPS OUTER
0 NESTED LOOPS OUTER
0 NESTED LOOPS OUTER
0 NESTED LOOPS OUTER
0 NESTED LOOPS OUTER
0 NESTED LOOPS
0 NESTED LOOPS
0 NESTED LOOPS
0 NESTED LOOPS
1 NESTED LOOPS
1 TABLE ACCESS BY INDEX ROWID USER$
1 INDEX UNIQUE SCAN I_USER1 (object id 44)
1 TABLE ACCESS BY INDEX ROWID OBJ$
1 INDEX RANGE SCAN I_OBJ2 (object id 37)
0 TABLE ACCESS CLUSTER TAB$
1 INDEX UNIQUE SCAN I_OBJ# (object id 3)
0 TABLE ACCESS CLUSTER TS$
0 INDEX UNIQUE SCAN I_TS# (object id 7)
0 TABLE ACCESS CLUSTER COL$
0 TABLE ACCESS CLUSTER COLTYPE$
0 TABLE ACCESS CLUSTER SEG$
0 INDEX UNIQUE SCAN I_FILE#_BLOCK# (object id 9)
0 TABLE ACCESS BY INDEX ROWID OBJ$
0 INDEX UNIQUE SCAN I_OBJ1 (object id 36)
0 TABLE ACCESS CLUSTER USER$
0 INDEX UNIQUE SCAN I_USER# (object id 11)
0 TABLE ACCESS BY INDEX ROWID OBJ$
0 INDEX UNIQUE SCAN I_OBJ1 (object id 36)
0 TABLE ACCESS CLUSTER USER$
0 INDEX UNIQUE SCAN I_USER# (object id 11)
0 INDEX UNIQUE SCAN I_OBJ1 (object id 36)
0 TABLE ACCESS BY INDEX ROWID OBJ$
0 INDEX RANGE SCAN I_OBJ3 (object id 38)
0 TABLE ACCESS CLUSTER USER$
0 INDEX UNIQUE SCAN I_USER# (object id 11)
0 NESTED LOOPS
0 FIXED TABLE FULL X$KZSRO
0 INDEX RANGE SCAN I_OBJAUTH2 (object id 109)
0 FIXED TABLE FULL X$KZSPR
1 FILTER
1 NESTED LOOPS
1 NESTED LOOPS OUTER
1 NESTED LOOPS
1 TABLE ACCESS BY INDEX ROWID USER$
1 INDEX UNIQUE SCAN I_USER1 (object id 44)
1 TABLE ACCESS BY INDEX ROWID OBJ$
1 INDEX RANGE SCAN I_OBJ2 (object id 37)
0 INDEX UNIQUE SCAN I_TYPED_VIEW1 (object id 105)
1 INDEX UNIQUE SCAN I_VIEW1 (object id 104)
0 NESTED LOOPS
0 FIXED TABLE FULL X$KZSRO
0 INDEX RANGE SCAN I_OBJAUTH2 (object id 109)
0 FIXED TABLE FULL X$KZSPR
2 COLLECTION ITERATOR PICKLER FETCH
ALL_SDO_GEOM_METADATA is a view in the MDSYS schema (generated by Oracle ).
SELECT SDO_OWNER OWNER,
SDO_TABLE_NAME TABLE_NAME,
SDO_COLUMN_NAME COLUMN_NAME,
SDO_DIMINFO DIMINFO,
SDO_SRID SRID
FROM SDO_GEOM_METADATA_TABLE
WHERE
(exists
(select table_name from all_tables
where table_name=sdo_table_name
and owner = sdo_owner
union all
select table_name from all_object_tables
where table_name=sdo_table_name
and owner = sdo_owner
union all
select view_name table_name from all_views
where view_name=sdo_table_name
and owner = sdo_owner))
Statistics have been gathered for the MDSYS user.
If this had not been SYS schema I would have immediately concluded that fresh statistics are required. The SYS objects concerend are valid with all indexes
From my understanding you are not meant to gather stats for the SYS schema in Oracle 9 as Data Dictionary queries still uses RBO?
Any ideas as to why Oracle is doing full table scans when querying SYS tables? The optimizer_mode is set to FIRST_ROWS.
Any ideas greatly recevied.
Thanks

Maybe I'm missing something but this:
INDEX FULL SCAN SISESTAT I0_ESTRUTURA_COMERCIALindicates that one of those indexes is being used.
This:
T_ESTRUTURA_COMERCIALIs nowhere to be found in your Explain Plan. It appears that either you have posted the wrong plan
or Oracle is doing a query rewrite to a materialized view.

Explain plan when have a View

Hi
I have a query and trying to use INDEX with hint, but I no use when is a view, is there some way for to use it ?
SELECT /*+ INDEX(T1 I0_PS_COMPL_ESTRUT_COMERCIAL)
           INDEX(T2 I0_ESTRUTURA_COMERCIAL) */
        T2.CD_TIPO_ESTRUTURA_COMERCIAL,
        T2.CD_ESTRUTURA_COMERCIAL,
        T2.CD_GERENCIA_VENDA
FROM T_PS_COMPL_ESTRUT_COMERCIAL T1,
       T_ESTRUTURA_COMERCIAL       T2
WHERE T1.CD_TIPO_ESTRUTURA_COMERCIAL = T2.CD_TIPO_ESTRUTURA_COMERCIAL
AND   T1.CD_ESTRUTURA_COMERCIAL = T2.CD_ESTRUTURA_COMERCIAL
AND   T2.ID_ESTRUTURA_ATIVA = 1
AND   T1.ID_PROXIMIDADE = 2
ORDER BY 3,2
SELECT STATEMENT, GOAL = CHOOSE               74     534     27768     71          1
SORT ORDER BY               74     534     27768     71     SEL$F5BB74E1     1
HASH JOIN               73     534     27768     71          1
   MAT_VIEW ACCESS BY INDEX ROWID     SISESTAT     M_ESTRUTURA_COMERCIAL_CAD     69     1685     23590     68     SEL$F5BB74E1     1
    INDEX FULL SCAN     SISESTAT     I0_ESTRUTURA_COMERCIAL     10     3370          10     SEL$F5BB74E1     1
   REMOTE          T_PS_COMPL_ESTRUT_COMERCIAL     3     1069     40622     3     SEL$F5BB74E1     1

Maybe I'm missing something but this:
INDEX FULL SCAN     SISESTAT     I0_ESTRUTURA_COMERCIALindicates that one of those indexes is being used.
This:
T_ESTRUTURA_COMERCIALIs nowhere to be found in your Explain Plan. It appears that either you have posted the wrong plan
or Oracle is doing a query rewrite to a materialized view.

About generating an EXPLAIN plan

What is its use?

Hi
Good inputs. Hovewer explain plan is not only used by CBO but for RBO (Rule Based Optimizer), too.
SQL> explain plan for
2 select /*+ RULE */
3 *
4 from dba_objects;
Explained.
SQL> select * from table (dbms_xplan.display);
PLAN_TABLE_OUTPUT
| Id | Operation                      | Name        | Rows | Bytes | Cost |
|   0 | SELECT STATEMENT               |              |       |       |       |
|   1 | VIEW                          | DBA_OBJECTS |       |       |       |
|   2 |   UNION-ALL                    |              |       |       |       |
|* 3 |    FILTER                      |              |       |       |       |
|   4 |     TABLE ACCESS BY INDEX ROWID| OBJ$         |       |       |       |
|   5 |      NESTED LOOPS              |              |       |       |       |
|   6 |       TABLE ACCESS FULL        | USER$        |       |       |       |
|* 7 |       INDEX RANGE SCAN         | I_OBJ2       |       |       |       |
|* 8 |     TABLE ACCESS BY INDEX ROWID| IND$         |       |       |       |
|* 9 |      INDEX UNIQUE SCAN         | I_IND1       |       |       |       |
| 10 |    TABLE ACCESS BY INDEX ROWID | LINK$        |       |       |       |
| 11 |     NESTED LOOPS               |              |       |       |       |
| 12 |      TABLE ACCESS FULL         | USER$        |       |       |       |
|* 13 |      INDEX RANGE SCAN          | I_LINK1      |       |       |       |
Predicate Information (identified by operation id):
   3 - filter("SYS_ALIAS_1"."TYPE#"<>1 AND "SYS_ALIAS_1"."TYPE#"<>10 OR
              "SYS_ALIAS_1"."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)
   7 - access("SYS_ALIAS_1"."OWNER#"="U"."USER#" AND "SYS_ALIAS_1"."LINKNAME"
              IS NULL)
       filter("SYS_ALIAS_1"."LINKNAME" IS NULL AND
              "SYS_ALIAS_1"."NAME"<>'_default_auditing_options_' AND
              "SYS_ALIAS_1"."NAME"<>'_NEXT_OBJECT')
   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)
13 - access("L"."OWNER#"="U"."USER#")
Note: rule based optimization
38 rows selected.
SQL> Bye, Aron

Explain Plan changed using "IN"

Hi ,
I am using one of the query as below
select a.x, b.y, c.z from a,b,c
where
a.x in ( select x from temp where col=b.y)
i checked explain plan this query is going to access full table x
i have index on x for temp table.
i need to check b.y in subquery as parameter and that subquery result i have to use as first main query's where criteria.
using function i can get only one record at time.
if anyone have any idea how to solve.
TIA

when i use = instead of "IN" below is the explain plan from TOAD
Operation     Object Name     Rows     Bytes     Cost     Object Node     In/Out     PStart     PStop
SELECT STATEMENT Optimizer Mode=RULE
SORT UNIQUE
CONCATENATION
NESTED LOOPS
NESTED LOOPS
NESTED LOOPS
NESTED LOOPS
TABLE ACCESS BY INDEX ROWID     JOB_DETAIL_LINES
INDEX UNIQUE SCAN     PK_JOT
TABLE ACCESS BY INDEX ROWID     BULK_BOL
INDEX RANGE SCAN     BULK_BOL_N1
TABLE ACCESS BY INDEX ROWID     BULK_SKID
INDEX RANGE SCAN     BULK_SKID_N1
TABLE ACCESS BY INDEX ROWID     DVD_DISC_PRINT_CARTON
INDEX RANGE SCAN     DVD_DISC_PRINT_CARTON_N2
TABLE ACCESS BY INDEX ROWID     DVD_DISC_PRINT_SUPPLY
INDEX UNIQUE SCAN     DVD_DISC_PRINT_SUPPLY_PK
NESTED LOOPS
NESTED LOOPS
NESTED LOOPS
NESTED LOOPS
TABLE ACCESS BY INDEX ROWID     JOB_DETAIL_LINES
INDEX UNIQUE SCAN     PK_JOT
TABLE ACCESS BY INDEX ROWID     BULK_BOL
INDEX RANGE SCAN     BULK_BOL_N1
TABLE ACCESS BY INDEX ROWID     BULK_SKID
INDEX RANGE SCAN     BULK_SKID_N1
TABLE ACCESS BY INDEX ROWID     DVD_DISC_PRINT_CARTON
INDEX RANGE SCAN     DVD_DISC_PRINT_CARTON_N2
TABLE ACCESS BY INDEX ROWID     DVD_DISC_PRINT_SUPPLY
INDEX UNIQUE SCAN     DVD_DISC_PRINT_SUPPLY_PK
NESTED LOOPS
NESTED LOOPS
NESTED LOOPS
NESTED LOOPS
TABLE ACCESS BY INDEX ROWID     JOB_DETAIL_LINES
INDEX UNIQUE SCAN     PK_JOT
TABLE ACCESS BY INDEX ROWID     BULK_BOL
INDEX RANGE SCAN     BULK_BOL_N1
TABLE ACCESS BY INDEX ROWID     BULK_SKID
INDEX RANGE SCAN     BULK_SKID_N1
TABLE ACCESS BY INDEX ROWID     DVD_DISC_PRINT_CARTON
INDEX RANGE SCAN     DVD_DISC_PRINT_CARTON_N2
TABLE ACCESS BY INDEX ROWID     DVD_DISC_PRINT_SUPPLY
INDEX UNIQUE SCAN     DVD_DISC_PRINT_SUPPLY_PK
NESTED LOOPS
NESTED LOOPS
NESTED LOOPS
NESTED LOOPS
TABLE ACCESS BY INDEX ROWID     BULK_BOL
INDEX RANGE SCAN     BULK_BOL_N1
TABLE ACCESS BY INDEX ROWID     BULK_SKID
INDEX RANGE SCAN     BULK_SKID_N1
TABLE ACCESS BY INDEX ROWID     DVD_DISC_PRINT_CARTON
INDEX RANGE SCAN     DVD_DISC_PRINT_CARTON_N2
TABLE ACCESS BY INDEX ROWID     DVD_DISC_PRINT_SUPPLY
INDEX UNIQUE SCAN     DVD_DISC_PRINT_SUPPLY_PK
TABLE ACCESS BY INDEX ROWID     JOB_DETAIL_LINES
INDEX UNIQUE SCAN     PK_JOT
when i use "IN" below is the explain plan from TOAD
Operation     Object Name     Rows     Bytes     Cost     Object Node     In/Out     PStart     PStop
SELECT STATEMENT Optimizer Mode=RULE
SORT UNIQUE
FILTER
NESTED LOOPS
NESTED LOOPS
NESTED LOOPS
NESTED LOOPS
TABLE ACCESS FULL     JOB_DETAIL_LINES
TABLE ACCESS BY INDEX ROWID     BULK_BOL
INDEX RANGE SCAN     BULK_BOL_N1
TABLE ACCESS BY INDEX ROWID     BULK_SKID
INDEX RANGE SCAN     BULK_SKID_N1
TABLE ACCESS BY INDEX ROWID     DVD_DISC_PRINT_CARTON
INDEX RANGE SCAN     DVD_DISC_PRINT_CARTON_N2
TABLE ACCESS BY INDEX ROWID     DVD_DISC_PRINT_SUPPLY
INDEX UNIQUE SCAN     DVD_DISC_PRINT_SUPPLY_PK
INDEX UNIQUE SCAN     PK_JOT

Bad execution plans when using parameters, subquery and partition by

We have an issue with the following...
We have this table:
CREATE TABLE dbo.Test (
Dt date NOT NULL,
Nm int NOT NULL,
CONSTRAINT PK_Test PRIMARY KEY CLUSTERED (Dt)
This table can have data but it will not matter for this topic.
Consider this query (thanks Tom Phillips for simplifying my question):
declare @date as date = '2013-01-01'
select *
from (
select Dt,
row_number() over (partition by Dt order by Nm desc) a
from Test
where Dt = @date
) x
go
This query generates an execution plan with a clustered seek.
Our queries however needs the parameter outside of the sub-query:
declare @date as date = '2013-01-01'
select *
from (
select Dt,
row_number() over (partition by Dt order by Nm desc) a
from Test
) x
where Dt = @date
go
The query plan now does a scan followed by a filter on the date.
This is extremely inefficient.
This query plan is the same if you change the subquery into a CTE or a view (which is what we use).
We have this kind of setup all over the place and the only way to generate a good plan is if we use dynamic sql to select data from our views.
Is there any kind of solution for this?
We have tested this (with the same result) on SQL 2008R2, 2012 SP1, 2014 CU1.
Any help is appreciated.

Hi Tom,
Parameter sniffing is a different problem. A query plan is made based on the value which may be really off in the data distribution. We do have this problem as well e.g. when searching for today's data when the statistics think the table only has yesterday's
data (a problem we have a lot involves the lack of sufficient amount of buckets in statistics objects).
This problem is different.
- It doesn't matter what the parameter value is.
- You can reproduce this example with a fresh table. I.e. without statistics.
- No matter what the distribution of data (or even if the statistics are correct), there is absolutely no case possible (in my example) where doing a scan followed by a filter should have better results than doing a seek.
- You can't change the behavior with hints like "option(recompile)" or "optimize for".
This problem has to do with the specific combination of "partition by" and the filter being done outside of the immediate query. Try it out, play with the code, e.g. move the where clause inside the subquery. You'll see what I mean.
Thanks for responding.
Michel

Buyer Beware!! No data plan when using Droid X as a hotspot!!

I purchased the Droid X right when it came out and got the "unlimited" data and hotspot options. I just received my first bill and it has $250 worth of data charges on it. I called customer support and learned that hotspot data is not in the unlimited plan. In fact, they do not offer a data plan for using the phone as a wifi hotspot - it's pay as you go.
This was the whole reason I bought this phone - to get the hotspot. I even turned in a wifi card I had with Sprint. Even the customer support supervisor admitted it does not make any sense. What a disaster..... #fail

CaboWaboMan wrote:
Yes, I am beginning to understand this now, they would not want someone selling mobile hotspot space. Can someone give me some idea of what 2 gigs of data represents, I am having a bit of trouble wrapping my head around this. This is going to be a pure convenience thing for me. Example i'm on the road with my laptop and need to mod an excel, word or access doc on the fly and send it off...am I good to do this several times or do I wait till i'm home or in the hotel?
Very interesting conversation all, I appreciate the input
short but sweet....do not play wow thru your phone while driving
CaboWaboMan> nice name btw.
It's hard to fully judge how much data is used. just surfing and sending emails would ammount to thousands of pages and text only emails before you hit 2 gigs. But, once you start adding in attachments you will have to figure in the size of those attachements. If you send 10 x 200MB files in a month, you've hit your limit on the attachments alone.
I stream pandora 5 days a week for hours upon hours a day and I use about 2.5 gigs of data per month, plus web surfing. If i download a bunch of files on my phone that number will bounce up tremendously.
So...likely the excel files ammount to a matter of Kbs so it shouldnt be a problem to stay WELL within that 2gb limit. I personally don't think it is worth the extra 20 bucks a month for 2 extra gigs. I would transfer my excel sheet to my phone via USB and then send it direct from the droid to my recipient.
Dj

Problem to create Explain Plan and use XML Indexes. Plz follow scenario..

Hi,
Oracle Version - Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit
I have been able to reproduce the error as below:
Please run the following code in Schema1:
CREATE 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;Then in Schema2, create
create synonym TNAME1 FOR SCHEMA1.TNAME1
SCHEMA1:
GRant All on TNAME1 to SCHEMA2Now in SCHEMA2, if we try:
Explain 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);WE GET -> ORA-00942: table or view does not exist
whereas this works:
Explain Plan for
SELECT xmltype.getclobval (XML_MESSAGE)
FROM TNAME1 t- Please tell me, what is the reason behind it and how can I overcome it. It's causing all my views based on this condition to fail in another schema i.e. not picking up the XMLIndexes.
Also
SELECT * from DBA_XML_TAB_COLS WHERE TABLE_NAME like 'TNAME1';Output is like:
OWNER, || TABLE_NAME, || COLUMN_NAME, || XMLSCHEMA || SCHEMA_OWNER, || ELEMENT_NAME, || STORAGE_TYPE, || ANYSCHEMA, || NONSCHEMA
SCHEMA1 || TNAME1 ||     XML_MESSAGE ||          ||          || BINARY     || NO     || YES ||
SCHEMA1 || TNAME1 ||     SYS_NC00025$ ||          ||          || CLOB     ||     ||
- Can I change AnySchema to YES from NO for -column_name = XML_MESSAGE ? May be that will solve my problem.
- SYS_NC00025$ is the XML Index, Why don't I get any values for ANYSCHEMA, NONSCHEMA on it. Is this what is causing the problem.
Kindly suggest.. Thanks..

The problem sounds familiar. Please create a SR on http://support.oracle.com for this one.

How can i indclude my own package when using 'javadoc'

hello,
i create my own package, say myPackage.
can i include it when using javadoc
thanks

In case you didn't get it from that last answer: You are not supposed to explicitly specify the java files, just the packages (the directories).
Cut-and-paste from the earlier supplied information:
Case 3 - Run from any directory on explicit packages in a single directory tree - In this case, it doesn't matter what the current directory is. Run javadoc supplying -sourcepath with the parent directory of the top-level package, and supplying names of one or more packages you want to document:
C:> javadoc -d C:\home\html -sourcepath C:\home\src java.awt java.awt.event
If you need to document more than one package, add a ";" and the package after the "C:\home\src" or whatever your package is called.
-d directory
Specifies the destination directory where javadoc saves the generated HTML files.
-sourcepath sourcepathlist
Specifies the search paths for finding source files (.java)
best of luck
-negal

SQLDeveloper can't generate an explain-plan when using "cube"

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