Tables are also known as (a)   .

(a)   are the properties that define an entity.

A (a)   defines the structure of the relation and represents the name of the relation with its attributes.

Each row in the relation is known as a (a)   .

The set of tuples of a relation at a particular instance of time is called a (a)   .

The number of attributes in the relation is known as the (a)   of the relation.

The number of tuples in a relation is known as (a)   .

The value which is not known or unavailable is called a (a)   value.

(a)   is the command to show all rows in a table.

It combines all of the rows in one table with all of the rows in another table except for the duplicate tuples.

(a)  

(a)   is the second SQL command that takes two tables and combines only the rows that appear in both tables.

(a)   in another SQL command that gets all rows in one table that are not found in the other table.

(a)   command would show all possible pairs of rows from both tables being used.

(a)   is the command that gives all values for certain attributes specified after the command.

(a)   takes two or more tables and combines them into one table.