Set the depth to 2 and describe a nested table : Nested Table Column « Collections « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » Collections » Nested Table Column 
26. 9. 3. Set the depth to 2 and describe a nested table
SQL>
SQL> CREATE Or Replace TYPE AddressType AS OBJECT (
  2    street VARCHAR2(15),
  3    city   VARCHAR2(15),
  4    state  CHAR(2),
  5    zip    VARCHAR2(5)
  6  );
  7  /
SQL>
SQL> CREATE Or Replace TYPE nested_table_AddressType AS TABLE OF AddressType;
  2  /

Type created.

SQL>
SQL> CREATE TABLE employee (
  2    id         INTEGER PRIMARY KEY,
  3    first_name VARCHAR2(10),
  4    last_name  VARCHAR2(10),
  5    addresses  nested_table_AddressType
  6  )
  7  NESTED TABLE
  8    addresses
  9  STORE AS
 10    nested_addresses;

Table created.

SQL>
SQL> SET DESCRIBE DEPTH 2;
SQL> DESCRIBE employee;
 Name            Null?    Type
---------------------------------------------------
 ID              NOT NULL NUMBER(38)
 FIRST_NAME               VARCHAR2(10)
 LAST_NAME                VARCHAR2(10)
 ADDRESSES                NESTED_TABLE_ADDRESSTYPE
   STREET                 VARCHAR2(15)
   CITY                   VARCHAR2(15)
   STATE                  CHAR(2)
   ZIP                    VARCHAR2(5)

SQL>
SQL> drop table employee;

Table dropped.

SQL>
SQL>
SQL>
26. 9. Nested Table Column
26. 9. 1. Using a Nested Table Type to Define a Column in a Table
26. 9. 2. Getting Information on Nested Tables
26. 9. 3. Set the depth to 2 and describe a nested table
26. 9. 4. Populating a Nested Table with Elements
26. 9. 5. Selecting Nested Table Elements
26. 9. 6. Modifying Nested Table Elements
26. 9. 7. Update the first record in the nested table.
26. 9. 8. Delete one record in the nested table
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