We selected two tables in the from clause of our query, and then wrote a query and told the database that it was in fact a table instead-which the database is perfectly happy with. There can be some benefits to using this method (as well as some limitations).Foremost is that this subquery ran once.owever, because we didn't specify how to join the tables, the database has matched every row from the first table with every row from the second table. Okay, so the boss is back, and he wants more information again. I want the same list, but also include 4WDs in it.
Definition. Muscular dystrophy is a group of diseases that cause progressive weakness and loss of muscle mass. In muscular dystrophy, abnormal genes (mutations) interfere with the production of proteins needed to form healthy muscle.There are many different kinds of muscular dystrophy.Symptoms of the most common variety begin in childhood, primarily in boys.n muscular dystrophy, abnormal genes (mutations) interfere with the production of proteins needed to form healthy muscle. There are many different kinds of muscular dystrophy. Symptoms of the most common variety begin in childhood, primarily in boys.
distal muscular dystrophy - a form of muscular dystrophy that sets in between 40 and 60 years of age and is characterized by weakness and wasting of the muscles of the hands and forearms and lower legs; inheritance is autosomal dominant.