SELECT from the object-oriented table : Object Table « Object Oriented « Oracle PL/SQL Tutorial

Oracle PL/SQL Tutorial
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Oracle PL/SQL Tutorial » Object Oriented » Object Table 
32. 9. 8. SELECT from the object-oriented table
SQL>
SQL> CREATE OR REPLACE TYPE addressType as OBJECT(
  2  street VARCHAR2(20),
  3  city VARCHAR2(20),
  4  state CHAR(2),
  5  zip CHAR(5))
  6  /

Type created.

SQL>
SQL> CREATE TABLE address_table OF addressType
  2  /

Table created.

SQL>
SQL> CREATE TABLE client (name VARCHAR2(20),
  2    address REF addressType scope is address_table);

Table created.

SQL>
SQL> DESC client;
 Name      Null?    Type
 ----------    
 NAME               VARCHAR2(20)
 ADDRESS            REF OF ADDRESSTYPE

SQL>
SQL> INSERT INTO client VALUES ('Jones',null);

row created.

SQL>
SQL>
SQL> SELECT *
  2  FROM client;

NAME                 ADDRESS
-------------------- --------------------------------------------------
Jones

SQL>
SQL>
SQL> UPDATE client SET address =
  2  (SELECT REF(aa)
  3  FROM address_table aa
  4  WHERE aa.city LIKE 'Mob%')
  5  WHERE name = 'Jones'
  6
SQL> select from client;

NAME                 ADDRESS
-------------------- --------------------------------------------------
Jones

SQL>
SQL> drop table address_table;

Table dropped.

SQL> drop table client;

Table dropped.

SQL> drop type addresstype;

Type dropped.

SQL>
SQL>
32. 9. Object Table
32. 9. 1. You can also use an object type to define an entire table, and the table is known as an object table.
32. 9. 2. Inserting a row into an object table
32. 9. 3. One-step INSERTs into a Table that Contains Row Objects
32. 9. 4. INSERT Values into a Table that Contains Row Objects (TCRO)
32. 9. 5. Insert data just as one would ordinarily do with a common SQL table:
32. 9. 6. SELECTing Individual Columns in Table that Contains Row Objects
32. 9. 7. Selecting Rows from the object Table
32. 9. 8. SELECT from the object-oriented table
32. 9. 9. Updating a Row in the object Table
32. 9. 10. UPDATE a Table that Contains Row Objects (TCRO)
32. 9. 11. Accessing the object table by reference
32. 9. 12. Create a table based on an Object with methods
32. 9. 13. Alter table to add a user-defined type column
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