SQL

between in sql

UPDATE columnName SET fieldName = 100 WHERE prod_id BETWEEN 10 AND 20;

between in sql

SELECT staffNo, fName, lName, position, salary
FROM Staff
WHERE salary BETWEEN 20000 AND 30000;

SQL BETWEEN Operator

SELECT item, amount
FROM Orders
WHERE amount BETWEEN 300 AND 500;

between in sql

(Between) operator same as  ">= <="
For example: 
Select * From Employees Where salary Between 4000 AND 6000;