import java.sql.Connection; import java.sql.DatabaseMetaData; import java.sql.DriverManager; public class Main { private static final String DRIVER = "com.mysql.jdbc.Driver"; private static final String URL = "jdbc:mysql://localhost/yourDatabase"; private static final String USERNAME = "root"; private static final String PASSWORD = ""; public static void main(String[] args) throws Exception { Class.forName(DRIVER); Connection connection = DriverManager.getConnection(URL, USERNAME, PASSWORD); DatabaseMetaData metadata = connection.getMetaData(); int maxLength = metadata.getMaxTableNameLength(); System.out.println("Max Table Name Length = " + maxLength); connection.close(); } }