import java.sql.*; public class OracleTest { String dbUrl = "jdbc:oracle:thin:@()"; String theUser = ""; String thePw = ""; Connection conn = null; Statement stmt; ResultSet rs = null; public OracleTest() { try { Class.forName("oracle.jdbc.driver.OracleDriver").newInstance(); conn = DriverManager.getConnection(dbUrl, theUser, thePw); stmt = conn.createStatement(); System.out.println("------------------------------"); System.out.println("DatabaseProductVersion: " + conn.getMetaData().getDatabaseProductVersion()); System.out.println("DriverVersion: " + conn.getMetaData().getDriverVersion()); System.out.println("------------------------------"); } catch (Exception e) { e.printStackTrace(); } } public ResultSet executeQuery(String sql) { rs = null; try { rs = stmt.executeQuery(sql); } catch (SQLException e) { e.printStackTrace(); } return rs; } public void close() { try { conn.close(); conn.close(); } catch (Exception e) { e.printStackTrace(); } } public static void main(String[] args) { ResultSet newrs; OracleTest newjdbc = new OracleTest(); newrs = newjdbc.executeQuery("select * from dual"); try { while (newrs.next()) { System.out.print(newrs.getString(1)); } } catch (Exception e) { e.printStackTrace(); } newjdbc.close(); } }
Connect to Oracle DB - Java
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