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Issuing a Query and Processing the Result

Any time you want to issue SQL statements to the database, you require a Statement instance. Once you have a Statement, you can use the executeQuery() method to issue a query. This will return a ResultSet instance, which contains the entire result.

Using the Statement Interface

The following must be considered when using the Statement interface:

Using the ResultSet Interface

The following must be considered when using the ResultSet interface:

An example is as follows:

Statement st = db.createStatement();
ResultSet rs = st.executeQuery("select * from mytable");
while(rs.next()) {
    System.out.print("Column 1 returned ");
    System.out.println(rs.getString(1));
}
rs.close();
st.close();