The WHERE Clause

The WHERE clause

The SQL WHERE clause is used to specify a condition while fetching the data from a single table. If the given condition is satisfied, then those specific records are returned from the table.

Syntax

The basic syntax of the SELECT statement with the WHERE clause is as shown below:

SELECT column1, column2, ... columnN 

FROM table_name

WHERE [condition];

You can specify a condition using the comparison or logical operators like >, <, =, LIKE, NOT, etc.

Example #1

Let’s consider the CUSTOMERS table again.

ID	NAME	AGE	ADDRESS	SALARY
1	Mark	32	Texas	50000.00
2	John	25	NY	65000.00
3	Emily	23	Ohio	20000.00
4	Bill	25	Chicago	75000.00
5	Tom	27	Washington	35000.00
6	Jane	22	Texas	45000.00

Let’s say we want to fetch the ID, Name and Salary fields from the CUSTOMERS table, provided that the salary of the customer is greater than $50,000.

So when we write our SQL query, will get the following result: