MIS561 Lab 5 Optimizing query using EXPLAIN

EXPLAIN shows information about the database: the number of tables; how tables are joined; how data is looked up (full table scan, full index scan or partial index scan); the presence of subqueries, sorts, and unions; DISTINCT and WHERE clauses… Read More

MIS561 Lab 3 Users Privileges and Roles

MySQL, like many other databases, uses the combination of specific user definitions, privileges, and roles to control access to the data in the database. In turn, it provides various layers of security. When the database is first created, there are… Read More