Connection
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ConnectionPoolConfiguration - How to connect to the database (ie connection URL) and how to configure the connection pool.
SSLConfiguration - Holds the configuration that is SSL related.
Connection - The interface to execute queries and statements on the database.
ConnectionPool - An implementation of pooling over connections.


SQL query result
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QueryResult - Hold the entire result include a status message.
ResultSet - Hold the rows that returned.
RowData - data of one row from the result.