I am trying to use a Subtype Object in place of a Supertype object but it is not working? - oracle

I have created two objects T_PERSONS,T_BUSINESS_PERSON where T_BUSINESS PERSON is a subtype and T_PERSONS is a supertype.
---Creating T_PERSONS OBJECT---
CREATE OR REPLACE
TYPE T_PERSONS AS OBJECT
( id integer,
first_name varchar2(10),
last_name varchar2(10),
dob DATE,
phone varchar2(12),
address t_address,
) NOT FINAL;
---Creating T_BUSINESS_PERSON OBJECT---
CREATE TYPE t_business_person UNDER t_persons
(title varchar2(20),
company varchar2(20)
);
Now I created an object table object_customers
CREATE TABLE object_customers OF t_persons
INSERTING DATA INTO object_customers
INSERT INTO object_customers VALUES
(t_persons(1,'Jason','Bond','03-APR-1955','800-555-1211',
t_address('21 New Street','Anytown','CA','12345')
));
in this case,data has been inserted properly
INSERT INTO object_customers VALUES
(t_business_person(2,'Steve','Edwards','03-MAR-1955','800-555-1212',
t_address('1 Market Street','Anytown','VA','12345'),'Manager','XYZ Corp'
));
Now in this case an error has occured
Error-attribute or element value is larger than specified in type.
Please Help.

The second insertion will work only if you create the table as follows:
CREATE TABLE object_customers OF t_business_person;
Click here to read more about NOTFINAL clause.

Related

Oracle Object Type and Object Table

I have created an object type and a table. I would like to know how select, insert, update and delete operation on it.
create table employee_info (
empid number,
emp_name varchar2(50),
department varchar2(20),
designation varchar2(50),
salary number
);
create type employee_info_obj is object (
empid number,
department varchar2(50),
designation varchar2(50),
salary number
);
create type employee_info_obj_t is
table of employee_info_obj ;
You have only created an object type and an unrelated database table. If you want a database table based on the type, you need to create one:
create table employee_info of employee_info_obj;
While it can be nice in certain programming scenarios to have a type synced to a table, there are some downsides such as it being harder to add columns later, and third party tool support since the object table will not be listed in user_tables but only in user_object_tables and user_all_tables, so I would question the usefulness of this approach.
dbFiddle

ORA-00909 error when Insert object in object table

I am getting an error ORA-00909 in when inserting an object of a superType in an object table. These are the definitions for the objects:
CREATE OR REPLACE TYPE address AS OBJECT (
street VARCHAR(20),
country VARCHAR(20),
province VARCHAR(20),
city VARCHAR2(20),
zipcode VARCHAR(10)
) FINAL;
CREATE OR REPLACE TYPE company AS OBJECT (
CIF VARCHAR2(9),
code VARCHAR2(10),
name VARCHAR2(20),
signUpDate DATE,
email VARCHAR2(20),
adminAddress address
) NOT FINAL;
CREATE OR REPLACE TYPE inCourseCompany UNDER company (
postalAddress address,
numEmployees NUMBER
) FINAL;
And the object table:
CREATE TABLE companies_objtab OF company (PRIMARY KEY CIF) OBJECT IDENTIFIER IS PRIMARY KEY;
I try to insert an object with the following statement:
INSERT INTO companies_objtab VALUES (
company('J12345678','000001','Test Company',TO_DATE(sysdate, 'dd/mm/yyyy hh24:mi:ss'),'',address('','','','',''))
);
and I get error Error
SQL: ORA-00909: invalid number of arguments
00909. 00000 - "invalid number of arguments"
However, when I insert an object of the subtype inCourseCompany it is inserted correctly:
INSERT INTO companies_objtab VALUES (
inCourseCompany('G11111111','','',TO_DATE(sysdate, 'dd/mm/yyyy hh24:mi:ss'),'',address('','','','',''), address('','','','',''), 100)
);
Any hint about what causes the error?
I am using Oracle SQL Developer 4.0.2.15.21 and Oracle Database Express Edition 11g Release 2.
Thank you in advance.
i tried all your statements right as you posted them (copy-paste). Both on 12c and 11gR2. Everything worked, both inserts. The only thing I noticed is that your create table is a bit incorrect. This is the correct one (but this does not explain the error you get). HTH KR
CREATE TABLE companies_objtab OF company (CIF PRIMARY KEY) OBJECT IDENTIFIER IS PRIMARY KEY;
Maybe try dropping the table and creating it again.

Insertion in Nested Tables on Oracle DB

I am a new learner of PL/SQL databases,A kind of exercise given to apply database on apex.oracle.com with given sequence.Then I have created tables but when it comes to fill tables with the insertion code as follows,Application has given error,Would you mind if I need your assistance
Thanks in Advance,
CREATE TYPE TEMPORAL_VARCHAR AS OBJECT (
VALID_TIME_LOWER_BOUND DATE,
VALID_TIME_UPPER_BOUND DATE,
VALUE_PART VARCHAR2(50)
);
CREATE TYPE TEMPORAL_NUMBER AS OBJECT (
VALID_TIME_LOWER_BOUND DATE,
VALID_TIME_UPPER_BOUND DATE,
VALUE_PART NUMBER );
Time-related attributeshave defined with the code as follows;
CREATE TYPE NAME_TYPE AS TABLE OF TEMPORAL_VARCHAR;
CREATE TYPE ADDRESS_TYPE AS TABLE OF TEMPORAL_VARCHAR;
CREATE TYPE DEPARTMENT_TYPE AS TABLE OF TEMPORAL_VARCHAR;
CREATE TYPE MANAGER_TYPE AS TABLE OF TEMPORAL_VARCHAR;
CREATE TYPE SALARY_TYPE AS TABLE OF TEMPORAL_NUMBER;
CREATE TABLE EMPLOYEE (
SSN NUMBER primary key,
NAME NAME_TYPE,
ADDRESS ADDRESS_TYPE ,
BIRTH_DATE DATE,
MANAGER MANAGER_TYPE ,
DEPARTMENT DEPARTMENT_TYPE,
SALARY SALARY_TYPE
)
NESTED TABLE NAME STORE AS NAME_TABLE,
NESTED TABLE ADDRESS STORE AS ADDRESS_TABLE,
NESTED TABLE MANAGER STORE AS MANAGER_TABLE,
NESTED TABLE DEPARTMENT STORE AS DEPARTMENT_TABLE,
NESTED TABLE SALARY STORE AS SALARY_TABLE
;
And the insertion that I am inteded to do
INSERT INTO EMPLOYEE VALUES
(101,
NAME(TEMPORAL_VARCHAR('23.11.2005','12.31.9999','James Brown')),
ADDRESS(TEMPORAL_VARCHAR('23.11.2005','12.31.9999','BUCA, IZMIR')),
'23.10.1986',
MANAGER(TEMPORAL_VARCHAR('23.11.2005','12.31.9999','Mike White')),
DEPARTMENT(TEMPORAL_VARCHAR('23.11.2005','12.31.9999','DEPT_ID05')),
SALARY(TEMPORAL_NUMBER('23.11.2005',’12.31.9999’, 250000))
);
And the error message I recieved is :
ORA-00904: "SALARY": invalid identifier
There are spaces before _ here
CREATE TYPE MANAGER _TYPE AS TABLE OF TEMPORAL_VARCHAR;
CREATE TYPE SALARY _TYPE AS TABLE OF TEMPORAL_NUMBER;
DEPARTMENT DEPARTMENT _TYPE
A comma is missing after DEPARTMENT _TYPE
try this solution:
'alter session set NLS_DATE_FORMAT='DD.MM.YYYY';'
----------------------------------------------------
INSERT INTO EMPLOYEE VALUES
(101,
NAME_TYPE(TEMPORAL_VARCHAR('23.10.1986','09.09.9999','James Brown')),
ADDRESS_TYPE(TEMPORAL_VARCHAR('15.12.2009','09.09.9999','BUCA')),
'23.10.1986',
MANAGER_TYPE(TEMPORAL_VARCHAR('24.05.2008','09.09.9999','Mike White')),
DEPARTMENT_TYPE(TEMPORAL_VARCHAR('03.01.2012','09.09.9999','DEPT_ID05')),
SALARY_TYPE(TEMPORAL_NUMBER('01.01.2003','09.09.9999', 3200))
);

what is the difference between nested table and object type in oracle?

I have following object tables in oracle DB.
create type deposit_ty as object
(
depno number(6),
depcategory ref depcategory_ty,
amount number(6),
period number(2)
);
create type deposit_ntty as table of deposit_ty;
create type address_ty as object
(
homeno number,
street varchar(30),
city varchar(30)
);
create type customer_ty as object
(
cusid char(4),
custname varchar(40),
address address_ty,
dob DATE,
deposits deposit_ntty
);
can any one tell what is the difference between column address and deposits in customer_ty object table?
An object type/abstract data type/record is like a row or tuple: it contains an ordered set of attributes. To populate address you must set one and only one value for each of homeno, street, and city.
A nested table is like a table: it contains an unordered set of rows. Usually a nested table only contains a set of simple values, like a number. In your example, it is a set of object types. To populate deposits you can create any number of deposit_ty.
For example:
declare
customer customer_ty :=
customer_ty(
'ABC',
'Name',
address_ty('123', 'fake street', 'Springfield'),
sysdate,
deposit_ntty(
deposit_ty(1, null, 100, 1),
deposit_ty(2, null, 200, 2)
)
);
begin
null;
end;
Also, you probably want to use a VARCHAR2 instead of VARCHAR or CHAR. And if it's not too late, throw out all this object stuff and use tables like everyone else.

Using objects to insert variable array into nested table

I have a series of tables and objects I have defined. I have an object nested table that I am trying to insert values into. The values are in the form of a variable array but I don't know how to insert them. my tables and code are as follows.
Table wu.classes
crn number(5)
department varchar2(8)
title carchar2(25)
Table wu.students
student_id char(11)
name varchar2(10)
dept varchar2(8)
advisor varchar(10)
classes wu.classes_va
wu.classes_va varray(5) of number (5)
create type classes_ty as object(crn varchar2(5),department varchar2(8), coursetitle varchar2(25)
create table classes_ot of classes_ty;
insert into classes_ot select crn,department,title from wu.classes;
create or replace type classes_ref_ty as table of ref classes_ty;
create table student_plus(student# varchar2(11),student_name varchar2(10),major varchar2(8), advisor (10), enrolled classes_ref_ty) nested table enrolled store as classes_ref_ty_tab;
Problem here (I need to loop through to fill the table but I just need to know how to do it for one values and i can figure the rest out):
begin
insert into student_plus values('700-123-948','Hooker','CS','VanScoy',classes_ref_ty();
insert into table(select enrolled from student_plus where student#='700-123-948')
select ref(c) from classes_ot c where ???
end;
/
I don't know how to access the variable array and use it with the classes_ref_ty.

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