JDBC is short for Java Database Connectivity. It's Sun's API standard for connecting to an SQL, very similar to Microsoft's ODBC but platform independent, you don't need to be concerned about what database you'll be using while developing (but you still can make vendor-specific calls). The procedure to gather data from a DB table is simple: you connect to the database, create a statement, execute a query, and examine the result set.
In-house 
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