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Q) Retrieving data from database?



A)

 


->to retrieve the data from database we need to submit SELECT statement from JDBC application.
->executeQuery() method of statement object is used for this purpose. This method has the fallowing

ResultSet executeQuery(String sql) throws SQLException

Ex:
ResultSet rs = st.executeQuery(“SELECT * FROM ACCOUNT”);

->objectoriented representation of tables formate data is called ResultSet object. Ao the driver created one object i.e. ResultSet object.
->object orientation representation of a table of records returned from db is nothing but “ResultSet” object.
 

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