You can use an object type to define an entire table, and the table is known as an object table. : Object Column « Object Oriented « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » Object Oriented » Object Column

32. 7. 2. You can use an object type to define an entire table, and the table is known as an object table.


SQL>

SQL>

SQL> CREATE or replace TYPE EmployeeType AS OBJECT (

  2    id          NUMBER,

  3    name        VARCHAR2(15),

  4    description VARCHAR2(22),

  5    salary       NUMBER(5, 2)

  6  );

  7  /



Type created.



SQL> CREATE TABLE object_employee OF EmployeeType;



Table created.



SQL>

SQL> desc object_employee;

 Name                Null?    Type

 ID                           NUMBER

 NAME                         VARCHAR2(15)

 DESCRIPTION                  VARCHAR2(22)

 SALARY                       NUMBER(5,2)



SQL>

SQL> drop table object_employee;



Table dropped.



SQL>

SQL>

SQL>

32. 7. Object Column
	32. 7. 1.	Using Object Types to Define Column Objects and Object Tables
	32. 7. 2.	You can use an object type to define an entire table, and the table is known as an object table.
	32. 7. 3.	The Object Type Column Objects
	32. 7. 4.	Loading the 'row object' Table
	32. 7. 5.	SELECT with a WHERE Clause
	32. 7. 6.	UPDATE Data in a Table of Row Objects
	32. 7. 7.	Using UPDATE with TYPEed Columns
	32. 7. 8.	Query a table with user-defined column type
	32. 7. 9.	Use * to reference all columns from a table
	32. 7. 10.	Use 'table of custom type' as table column type
	32. 7. 11.	Nested varray and table collection column
	32. 7. 12.	Create type and use it as table column
	32. 7. 13.	Nested type Column
	32. 7. 14.	Create a new type and add it to a table

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