PolaczPostgres2 (VSP)

src/main/java/bazy/a_poczatek/PolaczPostgres2.java

+package bazy.a_poczatek;
+
+import java.math.BigDecimal;
+import java.sql.*;
+
+public class PolaczPostgres2 {
+
+    public static void main(String[] args) {
+        try (Connection c = DriverManager.getConnection(
+                "jdbc:postgresql://vps497901.ovh.net/hr",
+                "kurs",
+                "vps497901_abc123");
+             PreparedStatement stmt = c.prepareStatement("SELECT * FROM employees");
+             ResultSet rs = stmt.executeQuery()) {
+
+            while (rs.next()) {
+                // odczyt wg numerów kolumn, numeracja od 1
+                int id = rs.getInt(1);
+                String firstName = rs.getString(2);
+                String lastName = rs.getString(3);
+
+                // odczyt wg nazw kolumn:
+                String job = rs.getString("job_id");
+                BigDecimal salary = rs.getBigDecimal("salary");
+
+                System.out.printf("%d: %s %s (%s) zarabia %s\n", id, firstName, lastName, job, salary);
+            }
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+    }
+}