Thrown when a DB error occurs.

RepeatableConnection is used to create RepeatableStatement objects.

RepeatableStatement: This class implements a repeatable statement. A repeatable statement is a regular PreparedStatement that can be repeated if the connection fails. Additionally, the repeatable statement maintains a cache of PreparedStatement objects for the threads. This prevents two threads from using the same PreparedStatement at the same time. To obtain a PreparedStatement a thread should call the obtainStatement function. Once the thread no longer needs the statement, the releaseStatement method should be called.

Simple internal class that holds the ResultSet from a query.