Query about Function based geometry object problem

Hi, I got stuck with a query like this:
SELECT count(*)
FROM property_point WHERE
get_geom(v_start,v_end,t_start,t_end).get_gtype() = 1 --point
AND --get all the points within the rectangle (min,min, now,now)
SDO_RELATE(get_geom(v_start,v_end,t_start,t_end),
mdsys.sdo_geometry(2003,NULL,NULL,
mdsys.sdo_elem_info_array(1,1003,3),
mdsys.sdo_ordinate_array(
to_number(to_char(to_date('01-JAN-1992','DD-MON-YYYY'),'J')),
to_number(to_char(to_date('01-JAN-1992','DD-MON-YYYY'),'J')),
to_number(to_char(sysdate,'J')),
to_number(to_char(sysdate,'J')))),
'mask=INSIDE querytype=WINDOW') = 'TRUE'
OR
get_geom(v_start,v_end,t_start,t_end).get_gtype() = 2 --line
AND --get all the lines interact with transaction now
SDO_RELATE(get_geom(v_start,v_end,t_start,t_end),
mdsys.sdo_geometry(2002,NULL,NULL,
mdsys.sdo_elem_info_array(1,2,1),
mdsys.sdo_ordinate_array(
to_number(to_char(sysdate,'J')),
to_number(to_char(to_date('01-JAN-1992','DD-MON-YYYY'),'J')),
to_number(to_char(sysdate,'J')),
to_number(to_char(to_date('31-DEC-2008','DD-MON-YYYY'),'J')))),
'mask=ANYINTERACT querytype=WINDOW') = 'TRUE'
AND --get all the lines interact with valid now
SDO_RELATE(get_geom(v_start,v_end,t_start,t_end),
mdsys.sdo_geometry(2002,NULL,NULL,
mdsys.sdo_elem_info_array(1,2,1),
mdsys.sdo_ordinate_array(
to_number(to_char(to_date('01-JAN-1992','DD-MON-YYYY'),'J')),
to_number(to_char(sysdate,'J')),
to_number(to_char(to_date('31-DEC-2008','DD-MON-YYYY'),'J')),
to_number(to_char(sysdate,'J')))),
'mask=ANYINTERACT querytype=WINDOW') = 'TRUE'
OR
get_geom(v_start,v_end,t_start,t_end).get_gtype() = 3 --rectangle
AND --interact with transaction now
SDO_RELATE(get_geom(v_start,v_end,t_start,t_end),
mdsys.sdo_geometry(2002,NULL,NULL,
mdsys.sdo_elem_info_array(1,2,1),
mdsys.sdo_ordinate_array(
to_number(to_char(sysdate,'J')),
to_number(to_char(to_date('01-JAN-1992','DD-MON-YYYY'),'J')),
to_number(to_char(sysdate,'J')),
to_number(to_char(to_date('31-DEC-2008','DD-MON-YYYY'),'J')))),
'mask=ANYINTERACT querytype=WINDOW') = 'TRUE'
AND --interact with valid now
SDO_RELATE(get_geom(v_start,v_end,t_start,t_end),
mdsys.sdo_geometry(2002,NULL,NULL,
mdsys.sdo_elem_info_array(1,2,1),
mdsys.sdo_ordinate_array(
to_number(to_char(to_date('01-JAN-1992','DD-MON-YYYY'),'J')),
to_number(to_char(sysdate,'J')),
to_number(to_char(to_date('31-DEC-2008','DD-MON-YYYY'),'J')),
to_number(to_char(sysdate,'J')))),
'mask=ANYINTERACT querytype=WINDOW') = 'TRUE'
which returns 0 rows.
But if only use the first condition, say
SELECT count(*)
FROM property_point WHERE
get_geom(v_start,v_end,t_start,t_end).get_gtype() = 1 --point
AND --get all the points within the rectangle (min,min, now,now)
SDO_RELATE(get_geom(v_start,v_end,t_start,t_end),
mdsys.sdo_geometry(2003,NULL,NULL,
mdsys.sdo_elem_info_array(1,1003,3),
mdsys.sdo_ordinate_array(
to_number(to_char(to_date('01-JAN-1992','DD-MON-YYYY'),'J')),
to_number(to_char(to_date('01-JAN-1992','DD-MON-YYYY'),'J')),
to_number(to_char(sysdate,'J')),
to_number(to_char(sysdate,'J')))),
'mask=INSIDE querytype=WINDOW') = 'TRUE'
will return 688 rows.
besides, 2nd and 3rd condition will return 0 and 5 rows.
Why it became 0 when putting them together?
This is the structure of table property_point and function get_geom
and I am using 10.1.0.3 version
CREATE TABLE property_point (
          SALES_ID number,
          AGENT_ID number,
          SALES_PRICE number,
          LOCATION MDSYS.SDO_GEOMETRY,
          V_START date,
          V_END     date,
          T_START date,
          T_END     date);
CREATE OR REPLACE FUNCTION get_geom(v_start in date, v_end in date, t_start in date, t_end in date)
return MDSYS.SDO_GEOMETRY deterministic is
I wonder if I missed anything here?

I have not used this myself, but check if this works for you.
RSPO_DOWNLOAD_SPOOLJOB
Regards,
Ravi
Note : Please mark the helpful answers

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Does this query need function based index?

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Regards,
Rob.

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Query about SAP locks /enqueue objects

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PS: Award points if helpful

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Note : Please mark the helpful answers

Creating function-based indexes

I'm trying to create a function-based index in one of the user's schemas and am getting an insufficient privilege error. Below are the examples:
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Hi, all.
I didn't hear about function-based index before, so I did some testing. Instead of using Oracle predefined functions (upper, lower, substr etc.), I created my own function and tried to create an index on it. I received an error that function is not deterministic. The definition of deterministic from Oracle docs:
DETERMINISTIC
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A SQL_TRACE output will explain clearly what Justin has stated.
I have created a table T based on all_objects.
SQL> desc t
Name                                      Null?    Type
OWNER                                     NOT NULL VARCHAR2(30)
OBJECT_NAME                               NOT NULL VARCHAR2(30)
SUBOBJECT_NAME                                     VARCHAR2(30)
OBJECT_ID                                 NOT NULL NUMBER
DATA_OBJECT_ID                                     NUMBER
OBJECT_TYPE                                        VARCHAR2(19)
CREATED                                            DATE
LAST_DDL_TIME                             NOT NULL DATE
TIMESTAMP                                          VARCHAR2(19)
STATUS                                             VARCHAR2(7)
TEMPORARY                                          VARCHAR2(1)
GENERATED                                          VARCHAR2(1)
SECONDARY                                          VARCHAR2(1)
CASE I_
SQL> select count(1) from t
2 /
COUNT(1)
    934320
SQL> select count(1) from t where created is null
2 /
COUNT(1)
      2376The number of null values in CREATED column is proportionately very small.
Now i execute the query without function based index.
select *
from t
where created is null
call     count       cpu    elapsed       disk      query    current        rows
Parse        1      0.00       0.09          0          0          0           0
Execute      1      0.00       0.00          0          0          0           0
Fetch      160      0.04       0.10          0      12662          0        2376
total      162      0.04       0.19          0      12662          0        2376
Rows     Execution Plan
      0 SELECT STATEMENT   GOAL: ALL_ROWS
   2376   TABLE ACCESS   GOAL: ANALYZED (FULL) OF 'T' (TABLE)And here is the query that uses the function based index
select *
from t
where nvl(created,to_date('01-01-1900','DD-MM-YYYY')) = to_date('01-01-1900','DD-MM-YYYY')
call     count       cpu    elapsed       disk      query    current        rows
Parse        1      0.01       0.00          0          0          0           0
Execute      1      0.00       0.00          0          0          0           0
Fetch      160      0.01       0.01          0        698          0        2376
total      162      0.03       0.01          0        698          0        2376
Rows     Execution Plan
      0 SELECT STATEMENT   GOAL: ALL_ROWS
   2376   TABLE ACCESS   GOAL: ANALYZED (BY INDEX ROWID) OF 'T' (TABLE)
   2376    INDEX   GOAL: ANALYZED (RANGE SCAN) OF 'T_FN_IDX' (INDEX)Its very obvious from the above output that the Function Based Index as increased the performance.
CASE II_
SQL> select count(1) from t
2 /
COUNT(1)
    934320
SQL> select count(1) from t where created is null
2 /
COUNT(1)
    202168Now the null values in the CREATED column is proportionately large than the first test case.
Now lets see without using the function based index
select *
from t
where created is null
call     count       cpu    elapsed       disk      query    current        rows
Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.00       0.00          0          0          0           0
Fetch    13479      0.46       0.71          2      25832          0      202168
total    13481      0.46       0.71          2      25832          0      202168
Rows     Execution Plan
      0 SELECT STATEMENT   GOAL: ALL_ROWS
202168   TABLE ACCESS   GOAL: ANALYZED (FULL) OF 'T' (TABLE)Now iam trying to use the function based index
select *
from t
where nvl(created,to_date('01-01-1900','DD-MM-YYYY')) = to_date('01-01-1900','DD-MM-YYYY')
call     count       cpu    elapsed       disk      query    current        rows
Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.00       0.00          0          0          0           0
Fetch    13479      0.54       0.84          0      33826          0      202168
total    13481      0.54       0.84          0      33826          0      202168
Rows     Execution Plan
      0 SELECT STATEMENT   GOAL: ALL_ROWS
202168   TABLE ACCESS   GOAL: ANALYZED (FULL) OF 'T' (TABLE)Its obvious from the result that oracle has decided to go for a FULL TABLE SCAN even when an index was available.
So just having a function based index is not going to increase the query performance. There are lot of other factors to be considered as stated above.
Thanks,
Karthick.

The problem of function-based reuse

I read the quoted text as follows from a book authored by a Microsoft developer. I googled and found a lots of quotes of it, but did not find any explanation.
============
With languages like C, the basic unit of reuse is the function. The problem with function-based reuse is that the function is coupled to the data it manipulates. and if the data is global, a change to benefit one function in one reuse context damages another function used somewhere else.
============
C uses libraries widely,which is of function-based reuse. Can anybody kindly give me a scenario when this problem happens?
Java is typically object-based reuse, and I admit that my question is not a Java one. But I feel it would help to understand more about the concept or benefits of design of Java language. So, thank you to allow me to post this question here,
Edited by: 799160 on Sep 30, 2010 12:38 PM
Edited by: 799160 on Sep 30, 2010 12:57 PM

This is what I got out of reading the quote you posted:
I suppose something like the following could happen:
You (being a general person) have been given a class to modify. You look at the code for the first time and it has a bunch of methods and some class variables in it. Some of the methods use the class variables. How can you be sure if you change the functionality to change a class variable in one method won't affect the other methods when they are used? This problem can be solved by learning what everything does, how it interacts and the correct way to use it. But then again, if you don't think about it and just make changes...Oops!
Perhaps another abstract example would make sense:
Imagine a calculator that could be used by 2 people at the same time? I bet it'd come up with some funny answers :)
I wrote up a short example of this, hopefully it makes some sense:
public class SuperBigProgram
     private int globalVar;
     public static void main ( String[] args )
          new SuperBigProgram();
     public SuperBigProgram()
          System.out.println("I'm a super big program.");
          globalVar = 0;
          //Let's pretend these series of events occur during the program:
          doItHighChanceActivity(); //1
          doItHighChanceActivity(); //2
          doItHighChanceActivity(); //3
          //Whoops super rare event occured!
          doesNotHappenALot();
          doItHighChanceActivity(); //4????    but is really 5.
      * This happens A LOT!
     private void doItHighChanceActivity ()
          superUtilityMethod();
          System.out.println("globalVar: " + globalVar);
      * This utility method does some awesome utility stuff for our Super Big Program.
      * This changes some global data.
     private void superUtilityMethod()
          globalVar++;
      * This does not happen a lot, if at all.
     private void doesNotHappenALot()
          //Hey I don't happen a lot but I'm reusing this really cool utility method that contains global data...
          //Code reuse for the win!
          superUtilityMethod();
}Here is the output:
I'm a super big program.
globalVar: 1
globalVar: 2
globalVar: 3
globalVar: 5
Edited by: kilosi on Sep 30, 2010 1:22 PM

Function based indexes on object tables

Hi,
I am trying to create a function based index on an object table. I am getting the following error:
SQL> create index cell1_indx on cell1(create_cell1(id)) indextype is mdsys.spatial_index;
create index cell1_indx on cell1(create_cell1(id)) indextype is mdsys.spatial_index
ERROR at line 1:
ORA-29855: error occurred in the execution of ODCIINDEXCREATE routine
ORA-13249: internal error in Spatial index: [mdidxrbd]
ORA-13249: Error in Spatial index: index build failed
ORA-13249: Stmt-Execute Failure: SELECT num_rows from all_tables where owner='ASHE' and table_name=
'CELL1'
ORA-06512: at "MDSYS.SDO_INDEX_METHOD_9I", line 7
ORA-06512: at line 1
Here cell1 is an object table.
Is the procedure for creating function based indexes on object tables different from relational tables?
Chinni

One of the many new features in Oracle 8i is the Function-Based Index (we will refrain from using FBI, but only just). This allows the DBA to create indexes on functions or expressions; these functions can be user generated pl/sql functions, standard SQL functions (non-aggregate only) or even a C callout.
A classic problem the DBA faces in SQL Tuning is how to tune those queries that use function calls in the where clause, and result in indexes created on these columns not to be used.
Example
Standard B-Tree index on SURNAME with cost based optimizer
create index non_fbi on sale_contacts (surname);
analyze index non_fbi compute statistics;
analyze table sale_contacts compute statistics;
SELECT count(*) FROM sale_contacts
WHERE UPPER(surname) = 'ELLISON';
Execution Plan
0 SELECT STATEMENT Optimizer=CHOOSE (Cost=3 Card=1 Bytes=17)
1 0 SORT (AGGREGATE)
2 1 TABLE ACCESS (FULL) OF 'SALES_CONTACTS' (Cost=3 Card=16 Bytes=272)
Now we use a function based index
create index fbi on sale_contacts (UPPER(surname));
analyze index fbi compute statistics;
analyze table sale_contacts compute statistics;
SELECT count(*) FROM sale_contacts WHERE UPPER(surname) = 'ELLISON';
Execution Plan
0 SELECT STATEMENT Optimizer=CHOOSE (Cost=2 Card=1 Bytes=17)
1 0 SORT (AGGREGATE)
2 1 INDEX (RANGE SCAN) OF 'FBI' (NON-UNIQUE) (Cost=2 Card=381 Bytes=6477)
The function-based index has forced the optimizer to use index range scans (retuning zero or more rowids) on the surname column rather than doing a full table scan (non-index lookup). Optimal performance does vary depending on table size, uniqueness and selectivity of columns, use of fast full table scans etc. Therefore try both methods to gain optimal performance in your database.
It is important to remember that the function-based B*Tree index does not store the expression results in the index but uses an "expression tree". The optimizer performs expression matching by parsing the expression used in the SQL statement and comparing the results against the expression-tree values in the function-based index. This comparison IS case sensitive (ignores spaces) and therefore your function-based index expressions should match expressions used in the SQL statement where clauses.
Init.ora Parameters
The following parameter must be set in your parameter file: QUERY_REWRITE_INTEGRITY = TRUSTED
QUERY_REWRITE_ENABLED = TRUE
COMPATIBLE = 8.1.0.0.0 (or higher)
Grants
Grants To create function-based indexes the user must be granted CREATE INDEX and QUERY REWRITE, or alternatively be granted CREATE ANY INDEX and GLOBAL QUERY REWRITE. The index owner must have EXECUTE access on the function used for the index. If execute access is revoked then the function-based index will be "disabled" (see dba_indexes).
Disabled Indexes
If your function-based index has a status of "disabled" the DBA can do one of the following:
a) drop and create the index (take note of its current settings)
b) alter index enable, function-based indexes only, also use disable keyword as required
c) alter index unusable.
Queries on a DISABLED index fail if the optimizer chooses to use the index.Here is an example ORA error:
ERROR at line 1: ORA-30554: function-based index MYUSER.FBI is disabled.
All DML operations on a DISABLED index also fail unless the index is also marked UNUSABLE and the initialization parameter SKIP_UNUSABLE_INDEXES is set to true.
Some more Examples
CREATE INDEX expression_ndx
ON mytable ((mycola + mycolc) * mycolb);
SELECT mycolc FROM mytable
WHERE (mycola + mycolc) * mycolb <= 256;
..or a composite index..
CREATE INDEX example_ndx
ON myexample (mycola, UPPER(mycolb), mycolc);
SELECT mycolc FROM myexample
WHERE mycola = 55 AND UPPER(mycolb) = 'JONES';
Restriction & Rule Summary
The following restrictions apply to function based indexes. You may not index:
a) LOB columns
b) REF
c) Nested table column
d) Objects types with any of the above data types.
Function-based indexes must always follow these rules:
a) Cost Based optimizer only, must generate statistics after the index is created
b) Can not store NULL values (function can not return NULL under any circumstance)
c) If a user defined pl/sql routine is used for the function-based index, and is invalidated, the index will become "disabled"
d) Functions must be deterministic (always return the same value for a known input)
e) The index owner must have "execute" access on function used in the function-based index. Revocation of the privilege will render the index "disabled"
f) May have a B-Tree and Bitmap index type only
g) Can not use expressions that are based on aggregate functions, ie. SUM, AVG etc.
h) To alter a function-based index as enabled, the function used must be valid, deterministic and the signature of the function matches the signature of the function when it was created.
Joel P�rez

Query not considering function based index in oracle 11g

I have a query which used Function Based Index when run in oracle 9i but when I run the same query
without any changes, it does not consider index. Below is the query:
SELECT distinct patient_role.domain_key, patient_role.patient_role_key,
patient_role.emergency_contact_name,
patient_role.emergency_contact_phone, patient_role.emergency_contact_note,
patient_role.emergency_contact_relation_id,
patient_role.financial_class_desc_id, no_known_allergies, patient_role.CREATED_BY,
patient_role.CREATED_TIMESTAMP,
patient_role.CREATED_TIMESTAMP_TZ, patient_role.UPDATED_BY, patient_role.UPDATED_TIMESTAMP,
patient_role.UPDATED_TIMESTAMP_TZ,
patient_role.discontinued_date
FROM encounter, patient_role
WHERE patient_role.patient_role_key = encounter.patient_role_key
AND UPPER(TRIM(leading :SYS_B_0 from encounter.account_number)) = UPPER(TRIM(leading :SYS_B_1 from
:SYS_B_2))
AND patient_role.discontinued_date IS null
AND encounter.discontinued_date IS null ;
Index definition:
CREATE INDEX "user1"."IX_TRIM_ACCOUNT_NUMBER" ON "user1."ENCOUNTER" (UPPER(TRIM(LEADING
'0' FROM "ACCOUNT_NUMBER")), "PATIENT_ROLE_KEY", "DOMAIN_KEY", "DISCONTINUED_DATE")
PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1
BUFFER_POOL DEFAULT)
TABLESPACE "user1"
Database : Oracle 11g (11.2.0.3)
O/S : Linux 64 bit (the query does not consider index even on windows os)
Any suggestions?
-Onkar
Edited by: onkar.nath on Jul 2, 2012 3:32 PM

Onkar,
I don't appreciate you posting this question in several forums at the same time.
If I would know you also posted this on Asktom, I wouldn't even have bothered.
As to your 'issue':
First of all: somehow cursor_sharing MUST have been set to FORCE. Oracle is a predictable system, not a fruitmachine.
Your statement the '0' is replaced by a bind variable anyway is simply false. If you really believe it is not false, SUBMIT a SR.
But your real issue is not Oracle: it is your 'application', which is a mess anyway. Allowing for alphanumeric numbers is a really bad idea.
Right now you are already putting workaround on workaround on workaround on workaround.
Issue is the application: it is terminal., and you either need to kill it, or to replace it.
Sybrand Bakker
Senior Oracle DBA

Query Transformation in Function Based Index's Expression

Hi All,
I am having a wired issue with Function Based Indexes on Orcale 10.2.0.3 running on Solaris 5.9.
I have created two FBI on two tables using following syntax.
CREATE INDEX EQHUB.IDX_BBO_WRT_DES_FBI ON EQHUB.BBO_WARRANT_PRICING (CASE WHEN latest_version_flag = 'Y' THEN 1 ELSE NULL END);
CREATE INDEX EQHUB.IDX_BBO_DES_FBI ON EQHUB.BBO_DESCRIPTIVE_DATA (CASE WHEN latest_version_flag = 'Y' THEN 1 ELSE NULL END);
For the second command (IDX_BBO_DES_FBI), when i query DBA_IND_EXPRESSIONS view, i found that Oracle has done some kind of QUERY TRANSFORMATION (?) and converted
FBI expression to CASE "LATEST_VERSION_FLAG" WHEN 'Y' THEN 1 ELSE NULL END.At the same time,EXPRESSION on first index is not changed.
Now,my question is what has made transformation to occure only for second index.
I also found that inspite of highly SELECTIVE nature of both the indexes, only SECOND index is being used by CBO (for which trasnformation occured)
and IDX_BBO_WRT_DES_FBI is not being used(FTS is happening instead).
Query is using same expression for both the tables as
(CASE WHEN latest_version_flag = 'Y' THEN 1 ELSE NULL END)=1
INDEX_NAME                          TABLE_NAME                          COLUMN_EXPRESSION
IDX_BBO_WRT_DES_FBI                 BBO_WARRANT_PRICING                 CASE WHEN "LATEST_VERSION_FLAG"='Y' THEN 1 ELSE NULL END
IDX_BBO_DES_FBI                     BBO_DESCRIPTIVE_DATA                CASE "LATEST_VERSION_FLAG" WHEN 'Y' THEN 1 ELSE NULL ENDI read that expression should be evaluated including CASE of characters and spaces in query.Is that true?
Appreciating responses in advance.

Randolf.
It's a shame that I forgot to look into the full execution plan information to check how Oracle really handles my queries.
Look here(edited for clarity):
explain plan for
select /*+ case1 ordered use_nl(x, y) */ count(case c1
    when '1' then 1
    when '2' then 2
    when '3' then 3
    else 4
end) from
(select level from dual connect by level <= 300000) x,
(select
from t1
) y;
| Id | Operation                       | Name | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT                |      |     1 |     2 |     5   (0)| 00:00:01 |
|   1 | SORT AGGREGATE                 |      |     1 |     2 |            |          |
|   2 |   NESTED LOOPS                  |      |     3 |     6 |     5   (0)| 00:00:01 |
|   3 |    VIEW                         |      |     1 |       |     2   (0)| 00:00:01 |
|   4 |     CONNECT BY WITHOUT FILTERING|      |       |       |            |          |
|   5 |      FAST DUAL                  |      |     1 |       |     2   (0)| 00:00:01 |
|   6 |    TABLE ACCESS FULL            | T1   |     3 |     6 |     3   (0)| 00:00:01 |
Column Projection Information (identified by operation id):
   1 - (#keys=0) COUNT(CASE WHEN "T1"."C1"='1' THEN 1 WHEN "T1"."C1"='2' THEN
       2 WHEN "T1"."C1"='3' THEN 3 ELSE 4 END )[22]
   2 - (#keys=0) "T1"."C1"[CHARACTER,1]
   4 - "DUAL".ROWID[ROWID,10], LEVEL[4]
   5 - "DUAL".ROWID[ROWID,10]
   6 - "T1"."C1"[CHARACTER,1]
32 rows selected.
explain plan for select /*+ case2 ordered use_nl(x, y) */ count(case
    when c1 = '1' then 1
    when c1 = '2' then 2
    when c1 = '3' then 3
    else 4
end) from
(select level from dual connect by level <= 300000) x,
(select
from t1
) y;
| Id | Operation                       | Name | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT                |      |     1 |     2 |     5   (0)| 00:00:01 |
|   1 | SORT AGGREGATE                 |      |     1 |     2 |            |          |
|   2 |   NESTED LOOPS                  |      |     3 |     6 |     5   (0)| 00:00:01 |
|   3 |    VIEW                         |      |     1 |       |     2   (0)| 00:00:01 |
|   4 |     CONNECT BY WITHOUT FILTERING|      |       |       |            |          |
|   5 |      FAST DUAL                  |      |     1 |       |     2   (0)| 00:00:01 |
|   6 |    TABLE ACCESS FULL            | T1   |     3 |     6 |     3   (0)| 00:00:01 |
Column Projection Information (identified by operation id):
   1 - (#keys=0) COUNT(CASE WHEN "T1"."C1"='1' THEN 1 WHEN "T1"."C1"='2' THEN
       2 WHEN "T1"."C1"='3' THEN 3 ELSE 4 END )[22]
   2 - (#keys=0) "T1"."C1"[CHARACTER,1]
   4 - "DUAL".ROWID[ROWID,10], LEVEL[4]
   5 - "DUAL".ROWID[ROWID,10]
   6 - "T1"."C1"[CHARACTER,1]As you exactly mentioned, I was executing different SQL but actually same queries!
Thanks for pointing my flaws.
PS) OP, forgive me for bothering you with off-topic things. :)
================================
Dion Cho - Oracle Performance Storyteller
http://dioncho.wordpress.com (english)
http://ukja.tistory.com (korean)
================================
Edited by: Dion_Cho on Feb 10, 2009 5:45 AM
Typo

Problem using two function based indexes at once!

Hello Oracle!
I've got problems using two function based indexes on geometries at once.
The problem occures, when I use a spatial join between two geometries both using function based indexes.
The test case:
CREATE TABLE quad (centroid NUMBER);
CREATE TABLE points (no NUMBER, point MDSYS.SDO_GEOMETRY);
CREATE OR REPLACE FUNCTION getQuad (centroid NUMBER) RETURN MDSYS.SDO_GEOMETRY DETERMINISTIC IS
BEGIN
RETURN MDSYS.SDO_GEOMETRY(2003, NULL, NULL, MDSYS.SDO_ELEM_INFO_ARRAY(1,1003,1),MDSYS.SDO_ORDINATE_ARRAY(centroid-5,centroid-5,centroid+5,centroid-5,centroid+5,centroid+5,centroid-5,centroid+5,centroid-5,centroid-5));
END;
INSERT INTO USER_SDO_GEOM_METADATA VALUES('quad','tiedge.getQuad(centroid)',MDSYS.SDO_DIM_ARRAY(MDSYS.SDO_DIM_ELEMENT('X', -100, 100, .0000001), MDSYS.SDO_DIM_ELEMENT('Y', -100, 100, .0000001)),NULL);
CREATE INDEX quad_idx on quad(getQuad(centroid)) INDEXTYPE IS MDSYS.SPATIAL_INDEX;
INSERT INTO quad VALUES (0);
INSERT INTO quad VALUES (5);
INSERT INTO quad VALUES (10);
INSERT INTO points VALUES (1, MDSYS.SDO_GEOMETRY(1001,NULL,NULL,MDSYS.SDO_ELEM_INFO_ARRAY(1,1,1),MDSYS.SDO_ORDINATE_ARRAY(4,4)));
ALTER SESSION SET QUERY_REWRITE_INTEGRITY=TRUSTED;
ALTER SESSION SET QUERY_REWRITE_ENA[i]Long postings are being truncated to ~1 kB at this time.

hi there,
For a better audience for this question, I'd look at the database forum.
guys on that will be a lot more familiar with FBIs
thanks
Barry

Implementing History types on query based view object attributes

Hi All,
I have to implement the history types
created on,
created by,
modified on,
modified by
in my application, but I have all the Query based view objects in my work space, but according to my research History types can only be implemented on the Entity Objects attributes. So how can I do this for my application ? Any Solution ? Any alternative please ?
(NOTE: I have all the entity objects available in my common Model work space ).

@TimoHahn, I have the following master view object query, which i can not generate by using the Entity objects, Basically I am transforming an oracle form base ERP into Oracle ADF application, so I have available all the quries , Please let me know if i can have any alternative solution ?
SELECT NVL(A.STYP,0) STYP,A.DAT,C.BATNO,C.ITST, B.DEMNO,B.ITEM,LTRIM(RTRIM(D.ITEMNAME))ITEM_NAME,0 TRINQ,D.UOM ABRV,P.DAT DDAT,
    A.CSNO,PARTY,NVL(CSRAT,0)+(NVL(CSRAT,0)*NVL(B.GST,0))/100 GSTCSRAT,CSRAT,
    A.PDAYS DAYS, DECODE(C.CSTERM,1,'CASH',2,'CREDIT',3,'DD',4,'PAY ORDER',5,'ADVANCE%',6,'CHEQUE') ,B.GST,E.MASTDS PNAME,NVL(SUM(B.RQTY),0)DRQTY,DEPT.SEC_NAME DEPTDS,SUM(STOK.QTY) BAL,P.TRNO,C.EBY, C.SYSIP, C.TDAT
              FROM ACCSTORE.STAC_CSM A, ACCSTORE.STAC_CSD B,ACCSTORE.ST_STAC_DEM_APRVD C,ACCSTORE.VITEMS D, ACC_MAST E,ACCSTORE.PRE_DEMANDM P,ACCSTORE.VSECTIONS DEPT,
              (SELECT STYP,ITEMID,SUM(BALANCE) QTY FROM ACCSTORE.VITEMSTOCK GROUP BY STYP,ITEMID) STOK
              WHERE A.CSNO=B.CSNO AND B.CSNO=C.CSNO AND B.DEMNO=C.DEMNO AND B.ITEM=C.ITEM AND B.STYP=C.STYP AND C.PDEMNO=P.TRNO(+) AND P.DEPT=DIVNO AND P.SEC_NO=DEPT.SECNO(+)
                          AND C.STYP=STOK.STYP AND C.ITEM=STOK.ITEMID
                AND C.STYP=D.STYP AND C.ITEM=D.ITEMID AND C.PARTY=E.MASTCD AND B.APP=1 AND NVL(C.PONO,0)=0
                AND C.ITST=DECODE(C.STYP,0,11,14)
                GROUP BY NVL(A.STYP,0),A.DAT,C.BATNO,C.ITST,B.DEMNO,B.ITEM,D.ITEMNAME,A.CSNO,PARTY,P.DAT,DEPT.SEC_NAME,P.TRNO,C.EBY, C.SYSIP, C.TDAT,
                CSRAT,A.PDAYS,C.CSTERM,B.GST,E.MASTDS,D.UOM ORDER BY A.CSNO,D.ITEMNAME
ORDER BY "DAT" DESC
which i can not generate by using the Entity objects, Basically I am transforming an oracle form base ERP into Oracle ADF application, so I have available all the quries , Please let me know if i can have any alternative solution ?

Why do we need query rewrite enabled for a function-based index?

Oracle 9i
========
I have searched a few sites but could not find any content on it. The question is why do we need to implement query rewrite enabled when we are trying out a function-based index?
Thanks in advance.

You don't, that's a legacy requirement from the early days of function based indexes in Oracle 8i. Here's a quick example running under 9.2.0.6
drop table t1;
create table t1 as
select
from
     all_objects
where
     rownum <= 30000
create or replace function pl_func(i_vc     varchar2)
return varchar2
deterministic
as
begin
     return soundex(i_vc);
end;
-- set the worst case scenario
alter session set query_rewrite_enabled = false;
alter session set query_rewrite_integrity = enforced;
create index t1_i1 on t1(pl_func(object_name));
execute dbms_stats.gather_table_stats(user, 't1')
set autotrace traceonly explain
select
     object_name
from t1
where pl_func(object_name) = 'T513'
set autotrace offResults (after set feedback off)
SQL> @temp
Execution Plan
Plan hash value: 1429545322
| Id | Operation                   | Name | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT            |       |    27 |   675 |    10   (0)| 00:00:01 |
|   1 | TABLE ACCESS BY INDEX ROWID| T1    |    27 |   675 |    10   (0)| 00:00:01 |
|* 2 |   INDEX RANGE SCAN          | T1_I1 |    27 |       |     1   (0)| 00:00:01 |
Predicate Information (identified by operation id):
   2 - access("TEST_USER"."PL_FUNC"("OBJECT_NAME")='T513')
SQL> spool offRegards
Jonathan Lewis
http://jonathanlewis.wordpress.com
http://www.jlcomp.demon.co.uk

Problem creating a function based index

Hi,
Database: 8.0.6
OS: win 2000 server
I want to create a function based index as shown below:
sql> create index new_index on A_INP_PATIENTS_ADMT(bus_unit, admit_status_flag, nvl(clinical_discharge_yn,'N'), ward_code)
When i press return its showing error,
"ORA-00907: missing right parenthesis"
Please show me how to rewrite this query to build function based index.
Best Regards,
Edited by: ateeqrahman on Jun 6, 2010 2:34 PM

Your sql is fine:
SQL> CREATE TABLE A_INP_PATIENTS_ADMT(
2                                   bus_unit number,
3                                   admit_status_flag varchar2(1),
4                                   clinical_discharge_yn varchar2(1),
5                                   ward_code varchar2(10)
6                                  )
7 /
Table created.
SQL> create index new_index on A_INP_PATIENTS_ADMT(bus_unit, admit_status_flag, nvl(clinical_discharge_yn,'N'), ward_code)
2 /
Index created.
SQL> You did not post Oracle version. Most likely, you are on some older version that does not support FBI. Otherwise, post your version and table description and create index statement execution showing all errors you are getting.
SY.

Query about Function based geometry object problem

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