Top 10 rides and attractions at Tennessee's Dollywood. PIGEON FORGE, TENN. - Set against the Great Smoky Mountains, Dollywood is surrounded by a green canopy of hardwood trees and colorful blankets of flowers that envelop every ride and attraction in the Tennessee wilderness.
Listed below are some differences to help distinguish between the two: 1  The WHERE clause specifies the criteria which individual records must meet to be selcted by a query. It can be used without the GROUP BY clause. The HAVING clause cannot be used without the GROUP BY clause.  The WHERE clause selects rows before grouping.
2) WHERE clause is used for filtering rows and it applies on each and every row, while HAVING clause is used to filter groups in SQL. 3) One syntax level difference between WHERE and HAVING clause is that, former is used before GROUP BY clause, while later is used after GROUP BY clause.