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.
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.
what command is used to create a table by copying the structure of another table including constraints ?
View 2 Replies View Relatedthe query, to get the foreign key constraints and related table fro give table.
View 2 Replies View RelatedHow do know all the constraints that are present on the data in a table in oracle ??
View 2 Replies View RelatedI 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)
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.
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 RelatedI knew, how to enable or disable a constraint on a table.
>alter table <table_name> disable constraint <constraint_name>;
But if we know all the data is correct, it's better to disable all constraints to improve the performance.
We are allowed to Disable or Enable only a single constraint.
Enable or Disable All Constraints.
i am a beginner in SQL and want to create a table with the following constraints :
'orderno' should be primary key and start with o
'clientno' should be foreign key
'ordr date' is not null
'salesmanno' foreign key
'delytype' default value 'f' and possible value ( f or p)
'delydate' cannot be less than order date
'orderstatus' values ('in process.......)
here's my
create table sales_order(orderno varchar2(6) like 'o%' primary key,
clientno varchar2(6) foreign key references client_master(clientno),deldate date not null,dellyaddr varchar2(25),salesmanno varchar2(6) foreign key references salesman_master(salesmanno), delytype char(1) default 'f',billyn char(1),delydate date check > orderdate,orderstatus varchar2(10)check ('in process','fullfilled','cancelled');
how to copy data and constraints from one table to another table
View 8 Replies View RelatedI have a table that has 2 columns of type nested table. Now in the purge process, when I try to truncate or drop a partition from this table, I get error that I can't do this (because table has nested tables). how I will be able to truncate/drop partition from this table? IF I change column types from nested table to varray type, will it work?
Also, is there any short method of moving existing data from a nested table column to a varray column (having same fields as nested table)?
through Difference between table Level, column Level ,row level constraints.
View 8 Replies View Related1. how can i impose a restriction on a table so that the data gets updated only specific period of time say 9 a.m. to 10 p.m.
2. Can i use bulk collect in dynamic sql? If yes how?
I want a query for all the columns in a table including there constraints and indexes of a "SCOTT" schema
View 7 Replies View RelatedI know that you can view all constraints in a table using $USER_CONSTRAINTS or $USER_INDEXES view. What i find difficult is that the information in those views is not really well presented.
I find it very hard to follow. For example, just to find out which columns are foreign keys and which tables they refer to is really tedious. Is there a simpler way to view all the constraints especially foreign keys of a table and including which table columns they refer to in the child table.
I like to see a diagramatic representaion of all the tables involved so i like to see both the parent and the child tables, which columns are related and using which FKs etc. is there an easier way to view this information?
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.
a material related to collections with Examples and also how to declare table type values.
View 9 Replies View Relatedcan you use alter table command to disable/enable constraints in a form if you can how, if you cant why
View 4 Replies View RelatedAm 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
Is Oracle will support Multi value storage ? In what way we can use Nested table? In real time application where we can use nested table . What is the usage of nested table in real time application.
View 2 Replies View Relatedwhat is the advantage of Nested table ?
View 1 Replies View RelatedI am studing Multidimensional Nested table and have the below code:
DECLARE TYPE table_type1 IS TABLE OF INTEGER; TYPE table_type2 IS TABLE OF TABLE_TYPE1;
table_tab1 table_type1 := table_type1();
table_tab2 table_type2 := table_type2(table_tab1);
BEGIN FOR i IN 1 .. 2 LOOP table_tab2.extend;
table_tab2(i) := table_type1();
[Code]...
exception when others then dbms_output.put_line(sqlerrm);END; This code is working fine as of now.But,If i comment below code(table_tab2 is also extended latter):
table_tab2.extend;
table_tab2(i) := table_type1();
then it gives me error 'Subscription Beyond count'. I would like to know why i need to extend table_tab2 twice?!
I try to do this:
CREATE MATERIALIZED VIEW MV_NESTED_DATA
NOCACHE
LOGGING
NOCOMPRESS
NOPARALLEL
BUILD IMMEDIATE
USING NO INDEX
REFRESH COMPLETE
ON DEMAND
START WITH ROUND(SYSDATE)
NEXT ROUND(SYSDATE) + 1
WITH ROWID
AS
select NESTED_TABLE_FIELD from MY_TABLE@Y_DB_LINK;
where NESTED_TABLE_FIELD is a nested table stored as T_NESTED_TABLE
And I get the error: ORA-12014: table 'T_NESTED_TABLE' does not contain a primary key constraint
Why should it if I try to create a MV with "WITH ROWID" refresh option and not "WITH PRIMARY KEY" one?
I have created table with nested table:
CODECREATE OR REPLACE TYPE ADDR_T AS OBJECT (
ADDR1 VARCHAR2 (50),
ADDR2 VARCHAR2 (50)
);
CREATE OR REPLACE TYPE t_ADDr AS TABLE OF ADDR_T;
[code]....
I have added some records and created index on ID column. I want to get result of CODEselect id, p.addr1,p.addr2 from nested_table n,table(n.COL1) p where id=1
Explain plan for that is:
CODESELECT STATEMENT ALL_ROWSCost: 8 Bytes: 231 Cardinality: 3
4 HASH JOIN Cost: 8 Bytes: 231 Cardinality: 3
2 TABLE ACCESS BY INDEX ROWID TABLE SYS.NESTED_TABLE Cost: 2 Bytes: 13 Cardinality: 1
1 INDEX RANGE SCAN INDEX SYS.FDSFAS Cost: 1 Cardinality: 1
3 TABLE ACCESS FULL TABLE (NESTED) SYS.COL1_TAB Cost: 5 Bytes: 163,840 Cardinality: 2,560
How to avoid full table scan on nested table? Cardinality is sum of all records in nested column in all rows in main table, why?
I'm trying to sort a collection in a nested table in PL/SQL so these value can be used later for a display and for export to Excel. The sort is failing.
-- PLS-00642: local collection not allowed in SQL statements
-- PL/SQl: ORA-00902: invalid datatype
The error message are also noted below in the code on the line that fails.
A quick overview of this code- Using a nested table MyNestedTable the values from several select queries are combined into MyRecordsetZero using CURSOR, and MULTISET UNION. I'm trying to either sort MyRecordsetZero or populate MyRecordsetSorted with the sorted values for futher use.
IMPORTANT: The code is running in an enviroment that does not have permission to create.
Versions:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bi
PL/SQL Developer: 8.0.0.1480
DECLARE
-- Declare the variable MyTID to be used by select statements and
-- set its data type and max character count
MyTID varchar2(10);
[code]....
In test.pks file I declared the following type
TYPE tab_tests is table of NUMBER(15);
In test.pkb, I have the following procedure
PROCEDURE report (
i_cid IN NUMBER
)
IS
test1 tab_tests := tab_tests();
test2 tab_tests;
BEGIN
-- I populate test1 with the data and it works fine. But when I tried to make a sorted nested table with the following command.
I got this error 'ORA-00902: invalid datatype',
a nested table than the following, like a built in Oracle collection method?
execute immediate 'select cast( multiset (select * from table(test1) order by 1) as tab_tests) INTO test2 FROM dual';
END;
create type nesttype as table of clob;
create table emp
(empno number,
ename varchar2(1000),
language_known nesttype
)
I want to check whether language is already there in database or not.
i have written the below query
select * from emp where language_known =nesttype('english','hindi');
i am getting the below error
SQL Error: ORA-22901: cannot compare nested table or VARRAY or LOB attributes of an object type
22901. 00000 - "cannot compare nested table or VARRAY or LOB attributes of an object type"
*Cause: Comparison of nested table or VARRAY or LOB attributes of an
object type was attempted in the absence of a MAP or ORDER
method.
*Action: define a MAP or ORDER method for the object type.
How to compare data in nested table
need to use Extend() in nested tables in Oracle? What could be the problem if I do not use this method in my code?
I have a nested collection type (TABLE OF VARCHAR2(32)) declared in my package. My stored procedure takes the TABLE type as input and inserts that data into a database table.
I see that my code works fine without using EXTEND method.
I am getting compilation error when create nested table type depend on table structure
SQL> CREATE OR REPLACE TYPE typ$nttb$1 IS TABLE OF emp%rowtype
2 ;
3 /
Warning: Type created with compilation errors.
SQL> show error
Errors for TYPE TYP$NTTB$1:
LINE/COL ERROR
-------- -----------------------------------------------------------------
0/0 PL/SQL: Compilation unit analysis terminated
1/29 PLS-00329: schema-level type has illegal reference to SCOTT.EMP
SQL>
