What is pointed out by using where clause in sql query

Using the where clause in a sql query indicates the query conditions.

SQL WHERE clause
The WHERE clause is used to extract those records that meet the specified criteria.

SQL WHERE syntax

SELECT column_name,column_name
FROM table_name
WHERE column_name operator value;

Operators in the WHERE clause

The following operators can be used in the WHERE clause Used in:

Operator	Description
=	is equal to
	is not equal to. Note: In some versions of SQL, this operator can be written as !=
>	is greater than
	is less than
>=	is greater than or equal to
	Less than or equal to
BETWEEN	Within a certain range
LIKE	Search for a pattern
IN	Specify multiple possible values ​​for a column

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