PL/SQL :: Foreign Key - Creating Table Based On Some Integrity Constraints - Not Working?
Dec 20, 2012
Am creating a table based on some integrity constraints, but it's not working.
CREATE TABLE member
(
member_id NUMBER(10),
last_name VARCHAR2(25) NOT NULL,
first_name VARCHAR2(25),
[code],,,
Error:
Error report:
SQL Error: ORA-02270: no matching unique or primary key for this column-list
02270. 00000 - "no matching unique or primary key for this column-list"
*Cause: A REFERENCES clause in a CREATE/ALTER TABLE statement gives a column-list for which there is no matching unique or primary key constraint in the referenced table.
*Action: Find the correct column names using the ALL_CONS_COLUMNScatalog view
View 4 Replies
ADVERTISEMENT
Mar 11, 2011
I have created table as below
create table emp_temp as select * from emp;
the table is created, but the constraints are not copied. Is there any way to copy all the constraints.
View 3 Replies
View Related
Mar 18, 2010
the query, to get the foreign key constraints and related table fro give table.
View 2 Replies
View Related
May 23, 2012
I am using Datapump import using database link to import an entire schema from another Server but it gives issues with constraints.I tried to first only import the metadata and then disable the constraints and import data and enable constraint but in this case the temp tablespace keeps filling up and i am out of space. Is there any method to do a full import including constraints and indexes.
View 7 Replies
View Related
Jan 17, 2013
I've tried to search this out on the forums, but I'm not finding anything useful. Point me to a resource that discusses the performance considerations of deferred foreign key constraints? I'm only interested in foreign keys.
How much of a performance difference does it really make?
View 4 Replies
View Related
Jun 10, 2013
In APEX I've always created form on report so as to have the list of records of a table and the possibility of inserting/updating every sinle record by means of the form on it, ok?I have an application concerning classic costumers, orders, ... with a table for every item.
The problem is that I have to gather all information ao as to produce a classic bill with a typical layout where you have on your left some descriptions and on your right an amount but of course the layout is not based on a classic table, do you mean?Do I have to create a table in which I'll add data and null values so as to get the layout desired
View 2 Replies
View Related
Dec 3, 2011
So I'm here creating some tables and if theres a guide where I can take a look at some Constraints Declarations , Mostly cause i have some values on the table that cannot be negative so i need to set constraints to be positive
View 4 Replies
View Related
Aug 19, 2013
Explain in detail about using constraints in creating tables.
View 3 Replies
View Related
Aug 16, 2013
We use Apex 4.2 with Apex Listener. Recently we patched apex to 4.2.2 and now when we try to create a form based on a table, after selecting the schema and table we get the following error: "You do not have access to the schema that you are importing.
Import failed" I've seen some posts regarding this error but nothing that works with my current situation. The database grants are in place.
View 1 Replies
View Related
May 19, 2007
How can I create a list of items in a field, for instance lets say I have a table called car and one of the sub categories is parts. How can I make it so that parts can be any number of pre-defined entities? Or even table, for instance if I make a table called parts how can I use that in the car table in place of parts?
My second question is about using foreign keys as primary keys. If I am writing an email sql DB and I decided to use the members usrname as the primary key in the member table but then made another table that lists all the emails and decided to make the foreign key member username the primary key there.
Is that safe to do or should i create a sequence in which to identify a primary key for the email list table? Also what if I extend member to several other tables and use it as a primary key there too, seems like a kind of dangerous way to do things...
View 1 Replies
View Related
Jun 13, 2012
I want to create a store procedure to copy data from a source tables(which may not have any constraints defined) to a table which has primary key, foreign key and unique key constraints.
Any records which are rejected due to these constraints not being satisfied need to go another table.
Once the initial data load is done, these procedures need to be automated(through cron) to do the future incremental uploads in the same manner.
View 6 Replies
View Related
Oct 8, 2010
is it possible to create primary key on view and use this view for creating foreign key .
View 3 Replies
View Related
Aug 7, 2013
I've an Oracle Table which has around 300 columns. I've a requirement to split this single table into two tables (150 columns each) by a foreign key.
Now I want to know how to maintain the data integrity while I insert the data into two tables. which means each table should have equal number of rows as we insert the 300 columns data into tables each at a time.
View 8 Replies
View Related
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);
INSERT INTO Car (Car_Cd, Car_Desc) VALUES ('CORLA','COROLLA');
Commit;
[code]....
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
FOREIGN KEY (Car_Cd)REFERENCES Car (Car_Cd);
[code]....
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?
View 2 Replies
View Related
Aug 14, 2011
is the definition of my table :
CREATE TABLE DATEFETC
(
ID VARCHAR2(10 BYTE),
DT DATE
)
And these are the data that are available,(select * from DATEFETC)
IDDT
00108-09-2011
00208-10-2011
00308-11-2011
That's fine.
Now i am executing this query ,but this is returning no rows.Why ?
select * from datefetc where dt between to_date('08-08-2011','mm-dd-yyyy') and to_date('08-12-2011','mm-dd-yyyy')
View 1 Replies
View Related
Jun 3, 2013
I am trying to create a clone database using hot backup of a database .
STEPS THAT I FOLLOWED
------------------------------------
LET ----- >CURRENT_DB NAME=DEV
CLONE DATABASE NAME=DEVCLONE
steps PERFORMED FORM DEV DB
-----------------------------------------------
- put the database in backup mode using 'alter database begin backup'
- copy all the data files to a different folder
- during copy i have performed some operations on the DB (creating users, tables, dmls etc...)
- in between copying i also performed log switch
- after completion of copy , "alter database end backup"
- created a backup control file in a human readable format (alter database backup controlfile to trace as ........)
steps performed for clone DB side ((DEVCLONE)
-------------------------------------------------------------------
- created a parameter file for the database .
- modified the backup control file so that it will point to the location of copied destination of datafiles
- set the ORACLE_SID
- then 'sqlplus / as sysdba
- starup nomount
- run the modified control file ( created a control file for the clone database)
- recover the database using "recover database using backup controlfile"
I have provided the archive files that it was asking for (archive logs that has been generated in DEV DB)
then i canceled the recovery by typing "cancel"
- recover database using backup controlfile until cancel;
then typed "cancel"
- then try to open the database with open resetlogs but it showed below error
alter database open resetlogs
*
ERROR at line 1:
ORA-01195: online backup of file 1 needs more recovery to be consistent
ORA-01110: data file 1: 'D:DATA_GUARDDEVHOTSYSTEM01.DBF'
View 6 Replies
View Related
Oct 10, 2012
I have a Select list which when null should disable a button and when not null should enable it. For which I tried the Advanced DA. Strangely, in the final page where we select the item that is going to be controlled, the button is not listed! I can see other display items etc which I can select but not the button.
View 0 Replies
View Related
Jul 14, 2012
what command is used to create a table by copying the structure of another table including constraints ?
View 2 Replies
View Related
May 3, 2013
in a table how many foreign keys can we create.
View 10 Replies
View Related
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.
View 5 Replies
View Related
Feb 25, 2008
How do know all the constraints that are present on the data in a table in oracle ??
View 2 Replies
View Related
Jan 21, 2012
I have an employee table which has a primary key and a self referencing foreign key, as shown here
create table employee (
id not null,
name not null,
department not null,
supervisor_id not null
,constraint constraint_1 primary key (id)
,constraint constraint_2 foreign key (supervisor_id) references employee (id));
Now if i make the primary key composite, as shown below -
create table employee (
id not null,
name not null,
department not null,
supervisor_id not null
,constraint constraint_1 primary key (id, name)
,constraint constraint_2 foreign key (supervisor_id) references employee (id));
Oracle is throwing the following error -
ORA-02270: no matching unique or primary key for this column-list
How can this error be fixed without changing the composite primary key?
View 10 Replies
View Related
May 29, 2011
I need to implement the foreign key on a column of a table from 2 tables. My requirement is in bellow.
drop table t1;
create table t1 (slno number, acc_no number);
drop table t2;
create table t2 (acc_no number primary key, acc_name varchar2(100));
drop table t3;
create table t3 (acc_no1 number primary key, acc_name1 varchar2(100));
[code]...
It is provided that the values of acc_no in t2 and acc_no1 in t3 are unique.Now it required that while inserting into t1 , the system will check either t2 or t3 tables.
View 7 Replies
View Related
Oct 17, 2013
I have now created my tables and now I want to populate them with my data but I get errors below is my full sql command. From last time I learned that one foreign key can be implemented in one table and cannot be duplicated to work around this I changed my foreign key as you can see to "fkone" . but why am I getting errors when trying to add information I mean I have not gotten errors in the first two tables so what am I "doing wrong/ not understanding"
CREATE TABLE CUSTOMER (CUSTOMERNAME varchar (25),STREET varchar (25),CUSTOMERCITY varchar (25),CONSTRAINT CUSTOMER_pk PRIMARY KEY (CUSTOMERNAME)); CREATE TABLE DEPOSIT (CUSTOMERNAME varchar (25),BRANCHNAME varchar (25),ACCOUNTNUMBER int,BALANCE decimal (7,2),CONSTRAINT DEPOSIT_pk PRIMARY KEY (ACCOUNTNUMBER)); CREATE TABLE LOAN(CUSTOMERNAME varchar (25),BRANCHNAME varchar (25),LOANNUMBER int,AMOUNT decimal (7,2),CONSTRAINT LOAN_pk PRIMARY KEY (LOANNUMBER)); CREATE TABLE BRANCH (BRANCHNAME varchar (25),BRANCHCITY varchar (25),ASSETS decimal (7,2) ,CONSTRAINT BRANCH_pk PRIMARY KEY (BRANCHNAME)); ALTER TABLE DEPOSITadd
[code]....
View 4 Replies
View Related
Feb 17, 2013
which data dictionary should i choose to see the foreign key and primary key of table
View 2 Replies
View Related
May 9, 2013
i have a field in my table office i got field office_code ,this field is been used in diffirent tables as foreign key is there a sql i can wirte to see all tables who have used this field as foreign key.
View 12 Replies
View Related
Jul 1, 2010
I would like to print all the constraints on all columns given a table name.
Example:
SQL>@constrnts
Enter Table Name: emp
empno ---- Primary key
deptno ---- foreign key references Dept(deptno)
View 16 Replies
View Related
Oct 15, 2010
When we create a duplicate table, we use the below query:
create table table2 as select * from table1;
But table2 is created without any constraints inherited from table1.Can I know how can i create the table with all the constraints existing in parent table.
View 5 Replies
View Related
Jul 11, 2011
I want to truncate table partition but I'm getting error:
CODEORA-02266: unique/primary keys in table referenced by enabled foreign keys
because of table has a nested table. Currently this column is not in use so I could drop it, but I want to avoid it (table is huge). Is there another posibility to do truncate partitions in this table? ALTER TABLE ... SET UNUSED doesn't resolve the problem.
View 2 Replies
View Related
Feb 16, 2011
can a table level check constraints have conditional checking (if else clause or case conditional structures) and checks which are limited through something like a where clause which inside the table level check constraints.And can a table level check constraints refer to a column in another table column which should have a the same value.
View 1 Replies
View Related
