Collection types in object relational database systems, Collection types VARRAY, Nested Tables, and Associative Arrays in Oracle
Collection Types
A collection is an ordered group of
elements of same type. The purpose of collection type is to support multiple
values for one attribute [variable]. For example, other programming languages
support the collection types array, lists, sets, bags, trees etc. To extend
these features in database applications, PL/SQL provides the following collection
types;
- Associative Arrays
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