In this article, where clause will be discussed alongside example.

Introduction :

1. To extract the data at times, we need a particular conditions to satisfy.
2. ‘where’ is a clause used to write the condition in the query.

Syntax :

select select_list
from table_name
where condition

A example is given below for better clarification –

Example :

Sample table: Student

If a user wants to extract the name of the student who is pursuing Mechanical, the query is as follows:

select name
from student
where course='Mechanical' 

The output is –

‘where’ condition filters only the rows that are evaluated to true. If the condition evaluates to false or unknown, the rows will not be filtered causing an error.

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