Are Computer Services For Laptops Too Expensive?

Are computer services for laptops really too expensive? The usual mindset of users is that it is practically cheaper to replace a unit than to have it fixed, in case there are problems. However, computer experts assert that it may depend to the extent and nature of the defect or problem. Of course, major repair […]

Imbalanced Join Conditions in Database Queries

In the above case a join is being made between two tables customer and order. Prior to a query being executed the SQL engine computes an execution plan. The query execution plan is a sequence of steps determined by the query optimizer. These steps would yield a sequence of operations which would result in the […]