A query is an SQL statement that is used to extract a subset of data from your database and presents it in a readable format. As we have seen previously, the SELECT command is used to run queries in SQL. You can further add clauses to your query to get a filtered, more meaningful result. The level of flexibility afforded by SQL is one of the reasons it has succeeded as a query language. While there is an entire gamut of add-ons to SELECT, in this chapter we will focus on only two – ORDER BY and WHERE.
Database administration tasks for a well thought-out schema are few and far between, but retrieving ...
