JDBC preguntas y respuestas de entrevista
Question: How can you retrieve data from the ResultSet?Answer: JDBC returns results in a ResultSet object, so we need to declare an instance of the class ResultSet to hold our results. The following code demonstrates declaring the ResultSet object:ResultSet rs = stmt.executeQuery("SELECT NAME,SAL FROM EMPLOYEE"); String s = rs.getString("NAME"); The method getString is invoked on the ResultSet object (rs), so getString() will retrieve (get) the value stored in the column NAME in the current row of rs. Note: rs is ResultSet variable name here. |
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