openGauss-connector-jdbc/docs/documentation/head/resultset.md

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layout	title	header	resource	previoustitle	previous	nexttitle	next
default_docs	Using the ResultSet Interface	Chapter 5. Issuing a Query and Processing the Result	media	Using the Statement or PreparedStatement Interface	statement.html	Performing Updates	update.html

The following must be considered when using the ResultSet interface:

• Before reading any values, you must call next(). This returns true if there is a result, but more importantly, it prepares the row for processing.
• You must close a ResultSet by calling close() once you have finished using it.
• Once you make another query with the Statement used to create a ResultSet, the currently open ResultSet instance is closed automatically.