Question

Which of the following is true about the SQL AS clause?

Select the correct answer from below options:

a) The AS clause in SQL is used to change the column name in the output or assign a name to a derived column.

b) The SQL AS clause can only be used with the JOIN clause.

c) The AS clause in SQL is used to defines a search condition.

d) All of the mentioned

Answer 1

a) The AS clause in SQL is used to change the column name in the output or assign a name to a derived column.

SQL AS clauses are defined for columns and tables to give an alias name. Basically, aliases are created to increase the readability of the query and column headings in the output.