Copying tables that have Foreign Keys

All my tables are using primary/foreign keys. If you look at the example below, I have a table 'stu_school' which has 3 foreign keys (FK_YEAR,FK_SCHOOL,FK_GRADE_LEVEL) pointing to 3 other tables. Every year I need to create a new record in the year table and copy the data from the previous year (with the FK_YEAR value) into the new year. Is there a better approach to moving this data over other than manually writing SQL statements and making sure they are done in the correct order (becuase of the keys).
stu_school
PK_ID
FK_YEAR
FK_SCHOOL
FK_GRADE_LEVEL
year
PK_ID
YEAR
school
PK_ID
SCHOOL
grade_level
PK_ID
FK_YEAR
FK_SCHOOL
GRADE_LEVEL

Since this is going to be an annual task and should therefore be part of the application I suggest writing a pl/sql script that performs the necessary actions rather than use sql to generate the sql to perform the action. A pl/sql script would allow better activity logging and error handling appropriate for a repeating production task.
IMHO -- Mark D Powell --

Similar Messages

Two columns in the same table that are foreign keys to the same master key

i want to create a table let say X, which have two columns that are foreign key that reference the same column in the master table, so does this count as bad database design.

here is the full ddl for the two table, where in the second table there are two columns that represent the primary key and they are also two foreign keys to the same columns in the master table (items)
Desc item table;
Item_id
Item_name
Item_price
Item_quantitiy
Create table item_recommendation ( item_id varchar(20), recommended_item varchar(20),
CONSTRAINT recom_primary PRIMARY KEY (item_id, recommended_item),
CONSTRAINT F1 FOREIGN KEY (item_id) REFERENCES items(item_id), ),
CONSTRAINT F2 FOREIGN KEY (recommended_item) REFERENCES items(item_id));

In ADF how can i insert data in multiple table if they have foreign key

I have started working on ADF and can anybody inform me in ADF how can i insert data in multiple table if they have foreign key,please?
Thnak you very much.

Hello,
Still no luck.I am surely doing silly mistakes.Anyway,Here are my workings-
1> student_mst (id(pk),studentname) and student_guard_mst(id(fk),guardianname)
2> created EO from both of the tables,made id in both EO as DBSequence and an association was also generated.
3> i made that association composite by clicking the checkbox
4> i created 2 VO from 2 EO.
5> put those VO in Application Module.
6> dragged and dropped 2 VO on my jspx page and dropped them as ADF Form.
Now what to do please?

Database adapter - table related by foreign key - not picking

Hi All,
we have a Invoke which picks data from database by using the query feature(not polling) of db adapter.
we are picking data from multiple tables.
there is foreign key relation between tables,which we have defined at the db adapter.
Parent - > child 1
> child 2 > child 3
> child 4 > child 5
So we have a case where parent has 3 rows but children tabls have 3000+.
This error is happening in such cases.
Please let me know.
<2009-08-06 16:58:54,833> <ERROR> <default.collaxa.cube.engine> The execution of this instance "90045" for process "XXSOA_ESP4G_ROUT_ABC_SRC" is supposed to be in a jta transaction, but the transaction is not present or in active state, please turn on the application server transaction debug logs to get more information.
<2009-08-06 16:58:54,842> <WARN> <default.collaxa.cube> <BaseCubeSessionBean::logError> Error while invoking bean "activity manager": Failed due to unhandled bpel fault.
<2009-08-06 16:58:54,852> <ERROR> <default.collaxa.cube.engine.dispatch> <DispatchHelper::handleMessage> failed to handle message
ORABPEL-02182
JTA transaction is not present or the transaction is not in active state.
The current JTA transaction is not present or it is not in active state when processing activity or instance "90,045". The reason is The execution of this instance "90045" for process "XXSOA_ESP4G_ROUT_ABC_SRC" is supposed to be in a jta transaction, but the transaction is not present or in active state, please turn on the application server transaction debug logs to get more information..
Please consult your administrator regarding this error.
     at com.collaxa.cube.engine.CubeEngine.store(CubeEngine.java:5514)
     at com.collaxa.cube.engine.CubeEngine.endRequest(CubeEngine.java:5799)
     at com.collaxa.cube.engine.CubeEngine.expireActivity(CubeEngine.java:2086)
     at com.collaxa.cube.ejb.impl.ActivityManagerBean.expireActivity(ActivityManagerBean.java:174)
     at com.collaxa.cube.ejb.impl.ActivityManagerBean.expireActivity(ActivityManagerBean.java:145)
     at sun.reflect.GeneratedMethodAccessor76.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at com.evermind.server.ejb.interceptor.joinpoint.EJBJoinPointImpl.invoke(EJBJoinPointImpl.java:35)
     at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
     at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)
     at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
     at com.evermind.server.ejb.interceptor.system.JAASInterceptor$1.run(JAASInterceptor.java:31)
     at com.evermind.server.ThreadState.runAs(ThreadState.java:693)
     at com.evermind.server.ejb.interceptor.system.JAASInterceptor.invoke(JAASInterceptor.java:34)
     at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
     at com.evermind.server.ejb.interceptor.system.TxRequiredInterceptor.invoke(TxRequiredInterceptor.java:50)
     at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
     at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)
     at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
     at com.evermind.server.ejb.InvocationContextPool.invoke(InvocationContextPool.java:55)
     at com.evermind.server.ejb.StatelessSessionEJBObject.OC4J_invokeMethod(StatelessSessionEJBObject.java:87)
     at ActivityManagerBean_LocalProxy_4bin6i8.expireActivity(Unknown Source)
     at com.collaxa.cube.engine.dispatch.message.instance.ExpirationMessageHandler.handle(ExpirationMessageHandler.java:43)
     at com.collaxa.cube.engine.dispatch.DispatchHelper.handleMessage(DispatchHelper.java:141)
     at com.collaxa.cube.engine.dispatch.BaseDispatchTask.run(BaseDispatchTask.java:58)
     at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
     at java.lang.Thread.run(Thread.java:595)
<2009-08-06 16:58:54,853> <ERROR> <default.collaxa.cube.engine.dispatch> <DispatchHelper::handleMessage> Not fatal connection error ... not retrying: class com.collaxa.cube.engine.UnhandledFaultException: Failed due to unhandled bpel fault.
<2009-08-06 16:58:54,854> <ERROR> <default.collaxa.cube.engine.dispatch> <BaseDispatchTask::run> Failed to handle dispatch message ... exception ORABPEL-05002
Message handle error.
An exception occurred while attempting to process the message "com.collaxa.cube.engine.dispatch.message.instance.ExpirationMessage"; the exception is: JTA transaction is not present or the transaction is not in active state.
The current JTA transaction is not present or it is not in active state when processing activity or instance "90,045". The reason is The execution of this instance "90045" for process "XXSOA_ESP4G_ROUT_ABC_SRC" is supposed to be in a jta transaction, but the transaction is not present or in active state, please turn on the application server transaction debug logs to get more information..
Please consult your administrator regarding this error.
ORABPEL-05002
Message handle error.
An exception occurred while attempting to process the message "com.collaxa.cube.engine.dispatch.message.instance.ExpirationMessage"; the exception is: JTA transaction is not present or the transaction is not in active state.
The current JTA transaction is not present or it is not in active state when processing activity or instance "90,045". The reason is The execution of this instance "90045" for process "XXSOA_ESP4G_ROUT_ABC_SRC" is supposed to be in a jta transaction, but the transaction is not present or in active state, please turn on the application server transaction debug logs to get more information..
Please consult your administrator regarding this error.
     at com.collaxa.cube.engine.dispatch.DispatchHelper.handleMessage(DispatchHelper.java:206)
     at com.collaxa.cube.engine.dispatch.BaseDispatchTask.run(BaseDispatchTask.java:58)
     at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
     at java.lang.Thread.run(Thread.java:595)

Also for above issue , we increased the timeout in transaction manager
transaction-timeout and syncMaxWaitTime properties as follows:
Property     File Location     This Value Must Be...     Example
transaction-timeout     SOA_Oracle_Home\j2ee\home\config\transaction-manager.xml     Larger than the transaction-timeout value in orion-ejb-jar.xml and the syncMaxWaitTime value.     7200
transaction-timeout     SOA_Oracle_Home\j2ee\home\application-deployments\orabpel\ejb_ob_engine\orion-ejb-jar.xml     Less than the transaction-timeout value in transaction-manager.xml.
Note: You must set all transaction-timeout properties that display in this file.     3600
syncMaxWaitTime     SOA_Oracle_Home\bpel\domains\domain_name\config\domain.xml
where domain_name is the name of the domain to which you are deploying.     Less than the transaction-timeout value in orion-ejb-jar.xml.     240
2.
The above refernece was useful in resolcing our issue.
Regards
Arc

How to insert data into two tables linke with foreign key..

I have two tables
1)EMP(emp_ID,username,emp_type_code)
emp_ID is primary key, emp_type_code is a foreign key references emptype table.
2)emptype(emp_type_code,emp_type_descripton)
emp_type_code is primary key
Could anyone help me ..how to insert data into EMP table. How to insert data into two tables linke with foreign key..

CREATE TABLE "CATDB"."DWDIMUSER"
"USER_ID" NUMBER(10,0) NOT NULL ENABLE,
"SPECIALTY_ID" NUMBER(10,0),
"FULLNAME" VARCHAR2(20 BYTE),
"FNAME" VARCHAR2(20 BYTE),
"LNAME" VARCHAR2(20 BYTE),
"USER_SUBTYPE" VARCHAR2(20 BYTE),
CONSTRAINT "DIMUSER_PK" PRIMARY KEY ("USER_ID") USING INDEX 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 "CATDB" ENABLE,
CONSTRAINT "DIMUSER_DIMSPECIALTY_FK" FOREIGN KEY ("SPECIALTY_ID") REFERENCES "CATDB"."DWDIMSPECIALTY" ("SPECIALTY_ID") DISABLE
CREATE TABLE "CATDB"."DIMSPECIALTY"
"SPECIALTY_ID" NUMBER(10,0) NOT NULL ENABLE,
"SPECIALTY_NAME" VARCHAR2(100 BYTE),
CONSTRAINT "DIMSPECIALTY_PK" PRIMARY KEY ("SPECIALTY_ID") USING INDEX 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 "CATDB" ENABLE
INSERT INTO DIMUSER (FullName, FNAME, LNAME, USER_TYPE, USER_SUBTYPE)
SELECT DISTINCT
Engineer AS FullName,
regexp_substr(Engineer , '[^,| ]+', 1, 1) as FName,
regexp_substr(Engineer , '[^,| ]+', 1, 2) as LName ,
'Engineer'
FROM EMPLOYEELOOKUP;
INSERT INTO DIMSPECIALTY (SPECIALTY_NAME)
SELECT DISTINCT SPECIALITY
FROM EMPLOYEELOOKUP;
COMMIT;
CREATE TABLE employeelookup ...IS A TABLE THAT HAS ALL THE DATA NEDED TO BE FILLED IN BOTHE TABLES...
CREATE TABLE "CATDB"."EMPLOYEELOOKUP"
"EMPLOYEELOOKUP_ID" NUMBER(10,0) NOT NULL ENABLE,
"ENGINEER" VARCHAR2(25 BYTE),
"SPECIALTY" VARCHAR2(20 BYTE),
CONSTRAINT "DIMSPECIALTY_PK" PRIMARY KEY ("EMPLOYEELOOKUP_ID") USING INDEX 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 "CATDB" ENABLE
DATA IN EMPLOYEELOOKUP
Engineer, Specialty,
John, Dow, Electronis,
Dow, Jons, Technician
Stan Smithers Sales
Mark, Richards Marketing
Jenny, Lane Marketing
John, Lee Sales
I NEED TO LOAD THE FOREIGN KEY IN DIMUSER FROM THE DIMSPECIALTY TABLE?
BY USING THE LOOKUP TABLE TO MARCH THE NAMES UNDER THE Engineer COLUMN, SPECIALTY COLUMNE DISTICTIVLY BY JOINING THE DIMSPECILTY TO RISTIVE THE PRIMARY KEY AND FILL IT IN THE DIMUSER TABLE AS A FOREIGNE KEY.

Necessary to have foreign keys ?

Dear All,
We have a oracle database, in which there is no foreign key constraints defined. But we are able to join the tables with the appropriate columns and getting the output of the query perfectly.
Now, is that mandatory to have foreign key columns defined or the current design is fine. Please help me in this, by discussing the advantages and disadvantages.
Thanks in advance.
Anand.

Best practice would absolutely be to have foreign keys in an OLTP system.
Without foreign keys, you are guaranteed to have data that violates referential integrity eventually. Unless you happen to be lucky enough to work on an application that will never have bugs, you need Oracle to enforce referential integrity.
Without foreign keys, your data model is much harder to understand. That means that when new developers come on the project, when people want to point various tools at the database, etc. those people and tools will not be able to use foreign keys to determine how the tables relate. That inevitably means that it will take them far longer to get up to speed and they are far more likely to make errors. If you ever point an automated tool at the database to generate an ERD, that tool will be nearly useless since it can't figure out how the tables relate.
Without foreign keys, you're depriving the optimizer of information that may allow it to generate better plans.
Yes, you need to index foreign keys in the child table, but you almost certainly need these indexes for queries anyway. Other than that, there are really no downsides. Yes, Oracle has to do a minute amount of work to verify the foreign key during DML, but it will be far more efficient for Oracle to do this than for your application to do it.
Justin

JOIN 2 tables that have same column ?

I need to learn how to join two tables that both have the same column name:
tbl1 - idskey
tbl2 - idskey
the idskey column holds a id_number
When I do the JOIN I would like to make sure that only Distinct records are joined from both tables and that any duplicates are removed in the final join. So if:
Tbl1 has a idskey of: 12345
and
Tbl2 has a idskey of: 12345
In the final JOIN I want to remove one of those duplicates.
I actually need to join 3 tables that have the same linking column names for the join, but if I learn how to do this correctly on 2, that will be a start.
10g for db, thanks!

Hi,
SELECT DISTINCT and GROUP BY are the most common ways to get unique results from non-unique keys. Exactly how you use them depends on exactly what you want to do.
SELECT DISTINCT guarantees that no two rows in the result set, conisdering all columns, will be identical.
GROUP BY produces one row from a set of rows that have a common feature. The values on that row may be a composite of values from various rows in that set (e.g., an average).
Please post a small, specific example. For instance:
"I have two rows in tbl1 ...
and these fhtee rows in tbl2 ...
Notice how there is one row with idskey=12345 in tbl1 but two such rows in tbl2.
How can I get theses results ...
where only one row has idskey=12345?"

Shadow tables that have been created via the new partitioning schema

Hi,
     Complete Partitioning :
                In a complete partitioning, the fact table of the infocube are fully converted using shadow
tables that have been created via the new partitioning schema.
               in the above Explanation what is the meaning of shadow tables which perform the
               partitioning of an info cube.

Hi
Shadow tables have the namespace /BIC/4F<Name of InfoCube> or /BIC/4E<Name of InfoCube>.
Complete Partitioning
Complete Partitioning fully converts the fact tables of the InfoCube. The system creates shadow tables with the new partitioning schema and copies all of the data from the original tables into the shadow tables. As soon as the data is copied, the system creates indexes and the original table replaces the shadow table. After the system has successfully completed the partitioning request, both fact tables exist in the original state (shadow table), as well as in the modified state with the new partitioning schema (original table). You can manually delete the shadow tables after repartitioning has been successfully completed to free up the memory. Shadow tables have the namespace /BIC/4F<Name of InfoCube> or /BIC/4E<Name of InfoCube>.
You can only use complete repartitioning for InfoCubes. A heterogeneous state is possible. For example, it is possible to have a partitioned InfoCube with non partitioned aggregates. This does not have an adverse effect on functionality. You can automatically modify all of the active aggregates by reactivating them.
Hope it helps and clear

How to improve Oracle Veridata Compair pair performance with tables that have big (30-40MB)CLOB/BLOB fileds ?

How to improve Oracle Veridata Compair pair performance with tables that have big (30-40MB)CLOB/BLOB fileds ?

Can you use insert .. returning .. so you do not have to select the empty_clob back out.
[I have a similar problem but I do not know the primary key to select on, I am really looking for an atomic insert and fill clob mechanism, somone said you can create a clob fill it and use that in the insert, but I have not seen an example yet.]

Why can't global temporary tables have foreign keys?

Hi,
I have a forms module which shows two blocks. The first block is based on a normal database table EMP and the second one is based on a global temporary table SAL_TEMP. There is a master-detail relation between the two blocks. So far, in Designer I created two normal database tables EMP and SAL_TEMP and created a foreign key with validation level "none" from the table SAL_TEMP to the table EMP. By creating the foreign key, Designer generates code to automatically synchronize the data between the master and the detail block in my form.
In the latest version of Designer it is finally possible to indicate a table as a global temporary table. But when I try to change my table SAL_TEMP to a global temporary table (session) I get an error that this is not allowed because my table contains foreign keys. So the Designer team finally implemented this feature but it is useless to me.
Can someone explain to me the reason of this restriction?
Vincent

Just out of curiosity - which version of Designer supports the creation of global temp tables? We are running version 9.0.2.80.6 and, as far as I am award, this does not support it (unless I am being really thick!) - is this new 10g Dev. Suite functionality?
thanks,
Pete

Table with n foreign key vs n tables or n foreign key vs 1 table?

Hi,
we have a scenario with n tables containing some attributes one table for one category of attribute (es: color, role, type, etc..) of a principal entity and 1 table for the principal entity with n foreign keys vs every attribute table.
Some propose to create a unique table called attributes in which put every attribute with an attributetype for each record.
My question is: the principal entity will have n foreign keys vs the same attribute table. Is this perfomant? which is the best solution?
Thanks in advance.
v.

>
we have a scenario with n tables containing some attributes one table for one category of attribute (es: color, role, type, etc..) of a principal entity and 1 table for the principal entity with n foreign keys vs every attribute table.
Some propose to create a unique table called attributes in which put every attribute with an attributetype for each record.
My question is: the principal entity will have n foreign keys vs the same attribute table. Is this perfomant? which is the best solution?
>
Ask those 'Some propose' how a foreign key to the 'same attribute table' will prevent the WRONG value from being used for a column.
1. Principal entity has a column for 'color' and a column for 'role'.
2. There are FKs on the 'color' column and the 'role' column that both point to the 'same attribute table'
3. Legal values for 'color' are: 1, 2, 3
4. Legal values for 'role' are: 10, 20, 30
What prevents someone from updating the 'color' column to a value of 20?
Ask those 'Some propose' how your one attribute table will store attributes that are of different datatypes.
1. 'color' uses numbers: 1, 2, 3
2. 'type' uses strings: 'type1', 'type2', 'type3'
3. 'holiday' uses dates: 12/25/2013, 01/01/2014
How do your 'Some propse' plan to store ALL of those values in one column? They are likely to say they will use VARCHAR2.
Ok - so how do you keep someone from updating 'holiday' to a value of 'type2' or a value of '3'?
You can't easily validate the data to begin with and you can't easily prevent 'dirty' data from getting into the system.
You also can't easily explain to ANYONE, for example new developers, how to properly use and maintain the table.
I haven't heard you mention even ONE potential benefit to doing things the way that 'Some propose'. So - DON'T DO THAT!

Creating Column in table or use Foreign Key

I have a bunch of tables that are year specific, so I need to store the year in the record. I'm not sure if I should create a column in each table called 'year' or create a master 'Year' table and use a foreign key to it in all my other tables. Any advice?
PK_ID NUMBER Constraint pk1
PRIMARY KEY
YEAR VARCHAR2(4)
--- or----
PK_ID NUMBER Constraint pk1
PRIMARY KEY
FK_YEAR NUMBER Constraint fk_year
REFERENCES year_table(PK_ID)

Does your "year" entity have any attributes ?
Why do you have a year, which to most people seems to be a number, stored as a varchar2(4) ? And what are you going to do about the Y10K problem ?
How about making the ID of year the numeric value of the year you are storing - then you have eat your cake and have it ;)
Seriously, though, why do you want a table to say that the year 2008 is the year identified by a meaningless unique number ?
Regards
Jonathan Lewis
http:/jonathanlewis.wordpress.com
http://www.jlcomp.demon.co.uk

Two tables that have both "many-to-many" and "one-to-many" relationship

i have the following two tables one represents the users and the other represents articles where each article can have one author(user) and of course the users can author many articles, so the relationship is one-to-many:-
1. Users:-
User_id (primary_key)
User_name
User_sex
user_address
2.Articiles:-
Article_id
Text
Author_id (foreign key to the users.user_id)
but the problem that i have faced is that on another requirement each articles can have multiple approval (users) before being published, so in this way the relation have became many-to-many, so i have created a third table named "approvals":-
3.Approval:-
approval_id (foreign key to the users.user_id)
article_id (foreign key to the articles.article_id)
level.
so is this a good approach to flow , or there are another way that i can better build these tables.

sb92075 wrote:
approval_id (foreign key to the users.user_id) I am not clear on data element above.
I thought USERS were really AUTHORS. yes the authors are users , and the author id is exactly the same as user id.
and any user can be author if a flag in the users table is set to yes and he is involved in a workflow.
so do authors approve their own articles? no
do non-authors approve articles?
What is "level" in APPROVAL table?
What is PK for APPROVAL table? level indicates the workflow steps if there are multiple steps in the workflow ,for example the first approval is on level one, and the second approval is on level two,etc
the primary key for the approval will be article_id and the user_id

Nested table as column & foreign key

Hi,
I have question - is possible to create foreign key (constraint) which references to element in nested table (for example element named ID)?
Thanks for replies, Petr

Also, what is the logic of foreign key constraint not being supported? The following is supposition.
As far as I know, Oracle have not formally explained why this is not supported. My guess is: it's too hard.
Quite why it's too hard I don't know but I suspect it is to do with the implementation of NESTED TABLEs. Remember, the actual data for the Nested Table is stored in a separate table - that's why we need the STORE AS clause. Consequently, the nested table already has a foreign key - to join the rows in it to the appropriate rows in the parent table - which is not exposed to us (it uses magic columns).
This is just another good reason not to use nested tables to store data. Just have a proper child table and then you can build all the reational integrity you like.
Cheers, APC

Query the name of the parent table in a foreign key constraint

Hello,
Does anyone know how to query for the parent table name in a foreign key constraint? I don't see that relationship in ALL_CONS_COLUMNS or ALL_CONSTRAINTS.
Thanks in advance,
Michael

or try this...
SELECT rc.TABLE_NAME "PK_Table_Name",cc.TABLE_NAME "FK_Table_Name",
       case when cc.column_name = rc.column_name
            then c.TABLE_NAME || '(' || cc.COLUMN_NAME || ')'
            else r.TABLE_NAME || '(' || rc.COLUMN_NAME || ') = ' ||c.TABLE_NAME || '(' || cc.COLUMN_NAME || ')' end as "TABLE_NAME(COLUMN_NAME)"
from all_constraints c,
     all_constraints r,
     all_cons_columns cc,
     all_cons_columns rc
WHERE
     r.table_name = upper('emp')
and      c.CONSTRAINT_TYPE = 'R'
and     c.R_OWNER = r.OWNER
and     c.R_CONSTRAINT_NAME = r.CONSTRAINT_NAME
and     c.CONSTRAINT_NAME = cc.CONSTRAINT_NAME
and     c.OWNER = cc.OWNER
and     r.CONSTRAINT_NAME = rc.CONSTRAINT_NAME
and     r.OWNER = rc.OWNER
and     cc.POSITION = rc.POSITION
ORDER BY r.TABLE_NAME;

Copying tables that have Foreign Keys

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