Postgresql Java Driver May 2026

// Update try (PreparedStatement pstmt = conn.prepareStatement("UPDATE users SET name = ? WHERE id = ?")) pstmt.setString(1, "Alice B."); pstmt.setLong(2, 1); pstmt.executeUpdate();

conn.setAutoCommit(false); // Required for streaming PreparedStatement pstmt = conn.prepareStatement("SELECT * FROM large_table"); pstmt.setFetchSize(1000); // Fetch in chunks of 1000 rows try (ResultSet rs = pstmt.executeQuery()) while (rs.next()) processRow(rs); // No memory blow-up

try (Statement stmt = conn.createStatement()) stmt.execute("LISTEN my_channel"); // Wait for notifications while (true) PGNotification[] notifications = conn.unwrap(PGConnection.class).getNotifications(1000); if (notifications != null) for (PGNotification notification : notifications) System.out.println("Received: " + notification.getParameter()); postgresql java driver

for (int i = 0; i < 10000; i++) pstmt.setString(1, "data" + i); pstmt.addBatch();

When building Java applications that require a robust, open-source relational database, PostgreSQL is a top contender. But Java speaks JDBC (Java Database Connectivity), not PostgreSQL’s native wire protocol. That’s where the PostgreSQL JDBC Driver ( pgjdbc ) comes in. // Update try (PreparedStatement pstmt = conn

// Delete try (PreparedStatement pstmt = conn.prepareStatement("DELETE FROM users WHERE id = ?")) pstmt.setLong(1, 1); pstmt.executeUpdate();

String sql = "SELECT id, name FROM users WHERE email = ?"; try (PreparedStatement pstmt = conn.prepareStatement(sql)) pstmt.setString(1, "alice@example.com"); ResultSet rs = pstmt.executeQuery(); while (rs.next()) long id = rs.getLong("id"); String name = rs.getString("name"); That’s where the PostgreSQL JDBC Driver ( pgjdbc

jdbc:postgresql://host:port/database?parameter1=value1¶meter2=value2