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This document provides an overview of using JDBC (Java Database Connectivity) to connect to and query databases. It discusses the basic 7 steps to using JDBC including loading drivers, establishing a connection, creating statements, executing queries, processing result sets, and closing connections. It also covers more advanced topics like using prepared statements, callable statements, metadata, transactions, and defining data sources using JNDI. Examples are provided using the Microsoft Access Northwind sample database accessed via JDBC-ODBC bridge.