In this article, where clause will be discussed alongside example.
- To extract the data at times, we need a particular conditions to satisfy.
- ‘where’ is a clause used to write the condition in the query.
select select_list from table_name where condition
A example is given below for better clarification –
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.
Attention reader! Don’t stop learning now. Get hold of all the important CS Theory concepts for SDE interviews with the CS Theory Course at a student-friendly price and become industry ready.