SQL & PL/SQL :: ORA-14652 / Reference Partitioning FOREIGN KEY Not Supported

Mar 30, 2011

I am trying to use reference partitioning the parent table records moved using the row movement . but the child table records are not moving below is my sample .

CREATE TABLE ref_parent1 (
table_name VARCHAR2(30),
order_date DATE,
num_rows NUMBER);
INSERT INTO ref_parent1 VALUES ('TEST1',SYSDATE,1000);
INSERT INTO ref_parent1 VALUES ('TEST2',SYSDATE,1000);


ORA-14652: reference partitioning FOREIGN KEY IS NOT supported

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SQL & PL/SQL :: Add Constraint Foreign Key Reference With PK Field

Mar 6, 2013

I've successfully created the below two tables (disregard my use of "char" variable type; beyond the scope of my question):

create table Test_req (
Req_ID varchar2(4) not null,
Req_Comment varchar2(50) null
create table Test_n_cycle (
Req_ID varchar2(4) not null,


Then I successfully performed the two alter statements:

Alter table test_n_cycle
add constraint test_n_cycle_pk primary key (req_id, test_id);
Alter table test_req
add constraint test_req_pk primary key (req_id);

Then tried this freign key reference statement

Alter table test_n_cycle
add constraint
foreign key (req_id) references test_req (req_id)
Error report:
SQL Error: ORA-00902: invalid datatype
00902. 00000 - "invalid datatype"

Is this because req_id is also defined in the Primary key definitions on these two tables, thus making the field not valid for referential constraint definition?

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Jan 11, 2012

There are 2 tables : Table A and Table B.Table B has foreign key reference to Table A.There are 2 forms in the application based on table A (form 1) and table B (form 2).

Now when we open form 2, the functionality is such that it acquires a lock on table B for the selected record during the search criteria. Lock is acquired by using "select 1 from table_B where column = :column for update no wait".So when the form 2 is opened by any other user/session and same record is tried to be selected, then an exception is raised to the user that the current record is being edited by some other user and does not allow him to edit that record.

Now imagine if User has opened screen 2 (One record in Table B has been locked). With this lock existing, we open form 1, and click a button which performs a COMMIT_FORM. At this point the form hangs. On checking the locked objects, there is a lock on both table A and table B. When the Form 2 is closed, then the Form 1 which was hanging a while ago starts responding.

When the foreign key relationship is dropped and the above scenario is tried, there is no issue encountered. Form 1 works fine even if form 2 is open.We are not supposed to drop the Foreign key relationship as well.

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Aug 25, 2010

Create table Car
(Car_cd VARCHAR2(5),
Car_Desc VARCHAR2(50)
alter table Car
add constraint Car_PK primary key (Car_CD);

The requirement necessitates a new table to map car to manufacturer. This mapping table may later be expanded to contain other attributes Engine, MPG, etc to hold details specific to a car.But this is in future.

Create Table Car_Mapping_Details
(Car_Cd VARCHAR2(5),
Manufacturer_Cd VARCHAR2(5));

--Primary Key Constraint
ALTER TABLE Car_Mapping_Details
ADD CONSTRAINT Car_Mapping_Details_pk PRIMARY KEY (Car_Cd );

--Not able to create this as Car_cd is already a PK in this table and therefore has Unique Index
ALTER TABLE Car_Mapping_Details ADD CONSTRAINT Car_Mapping_Details_fk1

But in this case the Car_Mapping_Details.Car_cd is itself is a primary key and therefore has Unique index.Although I was able to create foreign key constraint on Car_mapping_details.car_cd column (which is also Primary Key), I was not able to create Foreign Key Index on this column. It gives me Quote:ORA-01408: such column list already indexed.In other words, not creating foreign index for foreign key column lead to table-level lock? Or will the Unique Index in that primary key column be sufficient to avoid table-level lock?

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Apr 4, 2013

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I have non partitioning table and i create new table partitioning that have same column and type like in non partitioning. So how can i transfer data from table in non partitioning to table in partitioning?

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Jun 12, 2013

I am using the dblink to merge the data. I am using the following merge statement.

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when not matched then
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I know that I have to set a commit and it's working when I insert information's with a normal insert statement via database link, but it seems that merging doesn't work.

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Listener is OK.

Can i connect from Forms/Reports 4.5 to 9i Release 2 Oracle database?

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30353. 00000 - "expression not supported for query rewrite"
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type t_varchar is table of varchar2(100);
l_data t_varchar ;


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There is a very large fact table that is range partitioned by a column DATE_KEY of type NUMBER(38), such that every hour is a different partition. There is a bitmap index BX$FACT#DATE_KEY on field DATE_KEY, which also is a foreign key referencing DATE_DIM (DATE_KEY). There is a different DATE_KEY for every hour, generated as YYYYMMDDHH24.

When I run

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to get all the records for 7 am on March 12th, partition pruning kicks in and sees that only one partition is used. The CBO then decides to do a full scan of the partition. This behavior is correct/desired.

If, however, I run

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to get all the records for 7 and 8 am, Oracle knows that it will have to scan two partitions. The CBO then decides that using the BX$FACT#DATE_KEY must be a good idea and, instead of doing a full scan of the partitions, does access by local index rowid, which is many times slower.

I think I understand the cause - when more than a single partition is involved, Oracle has to use the global index stats (instead of the local ones, like in the first scenario) and the CBO decides to use it because that the selectivity for the global index is great, when in fact the query will return all the rows for that particular partition (no selectivity).

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