The hierarchical database organizes data in a(n) :

Which of the following is a small program embedded within a GIF image ?

A(n)…….accesses the database and data dictionary in a DBMS as they exist on a storage device.

A text or an image which, when clicked, takes the user to another Website/page………….

The……….key in a relational database links one table to another.

Which one of the following control steps is usually not performed in data warehousing applications