It is a general concept that encompasses lists, arrays, and other familiar datatypes.
Each element has a unique subscript that determines its position in the collection.
This statement provides a list of orders and the customers that placed those orders.
Tables are made up of rows of data, each consisting of one or more columns, so it stands to reason that Oracle Database would make it as easy as possible to work with those rows of data inside a PL/SQL program.
Microsoft SQL Server is a computer application used to create desktop, enterprise, and web-based database applications.
It is used at different levels and with various goals.
Ambrose Bierce Many programming techniques use collection types such as arrays, bags, lists, nested tables, sets, and trees.
To support these techniques in database applications, PL/SQL provides the datatypes , which allow you to declare index-by tables, nested tables and variable-size arrays.