Postgresql Java Driver -

Have a performance war story or a clever use of pgjdbc ? Share it in the comments below.

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 ( pgjdbc ) comes in.

It uses version 3.0 of the PostgreSQL protocol, compatible with PostgreSQL 8.2 and higher . postgresql java driver

jdbc:postgresql://host:port/database_name?user=username&password=password

When fetching millions of rows, avoid OutOfMemoryError by streaming. Have a performance war story or a clever use of pgjdbc

The entry point is the DriverManager class. You need a Connection URL with a specific format.

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"); But Java speaks JDBC (Java Database Connectivity), not

<dependency> <groupId>org.postgresql</groupId> <artifactId>postgresql</artifactId> <version>42.7.3</version> <!-- Check for the latest version --> </dependency>

catch (SQLException e) System.out.println(e.getMessage());