ALL_COLL_TYPES

ALL_COLL_TYPES describes all named collection types (varrays and nested tables) accessible to the current user.

Related Views

  • DBA_COLL_TYPES describes all named collection types in the database.

  • USER_COLL_TYPES describes all named collection types owned by the current user. This view does not display the OWNER column.


Column Datatype NULL Description

OWNER

VARCHAR2(128)

NOT NULL

Owner of the collection

TYPE_NAME

VARCHAR2(128)

NOT NULL

Name of the collection

COLL_TYPE

VARCHAR2(128)

NOT NULL

Description of the collection, such as VARYING ARRAY, [nested] TABLE

UPPER_BOUND

NUMBER

 

For varrays only, maximum size

ELEM_TYPE_MOD

VARCHAR2(7)

 

Type modifier of the element

ELEM_TYPE_OWNER

VARCHAR2(128)

 

Owner of the type upon which the collection is based. This value is useful primarily for a user-defined type.

ELEM_TYPE_NAME

VARCHAR2(128)

 

Name of the data type or user-defined type upon which the collection is based

LENGTH

NUMBER

 

Length of CHAR elements or maximum length of VARCHAR or VARCHAR2 elements

PRECISION

NUMBER

 

Decimal precision of NUMBER or DECIMAL elements; binary precision of FLOAT elements

SCALE

NUMBER

 

Scale of NUMBER or DECIMAL elements

CHARACTER_SET_NAME

VARCHAR2(44)

 

Name of the character set (CHAR_CS | NCHAR_CS)

ELEM_STORAGE

VARCHAR2(7)

 

Obsolete column

NULLS_STORED

VARCHAR2(3)

 

Obsolete column

CHAR_USED

VARCHAR2(1)

 

Indicates whether the attribute uses BYTE length semantics (B) or CHAR length semantics (C). For NCHAR and NVARCHAR2 attribute types, this value is always C.