SQL IN Keyword
IN
The IN operator is used in the WHERE clause to check if a specified column's value matches
any value within a provided list.
The IN operator functions as a shorthand for multiple OR conditions, making queries shorter and more readable.
The following SQL uses the IN operator to select all customers from
Germany, France, or UK:
The following SQL selects all customers that are NOT located in "Germany", "France" or "UK":
The following SQL selects all customers that are from the same countries as the suppliers: