Cover Page by Gary Cornell, Cay S. Horstmann

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4.2. The Structured Query Language

JDBC lets you communicate with databases using SQL, which is the command language for essentially all modern relational databases. Desktop databases usually have a GUI that lets users manipulate the data directly, but server-based databases are accessed purely through SQL.

The JDBC package can be thought of as nothing more than an API for communicating SQL statements to databases. We will briefly introduce SQL in this section. If you have never seen SQL before, you might not find this material sufficient. If so, turn to one of the many books on the topic; we recommend Learning SQL by Alan Beaulieu (O’Reilly, 2005) or the opinionated classic, A Guide to the SQL Standard, Fourth Edition, by C. J. Date and Hugh ...

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