package org.kodejava.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.DatabaseMetaData;
import java.sql.SQLException;

public class MaximumTableNameLength {
    private static final String URL = "jdbc:mysql://localhost/kodejava";
    private static final String USERNAME = "kodejava";
    private static final String PASSWORD = "s3cr*t";

    public static void main(String[] args) {
        try (Connection connection =
                     DriverManager.getConnection(URL, USERNAME, PASSWORD)) {
            DatabaseMetaData metadata = connection.getMetaData();

            // Get the information of database table name maximum length 
            int maxLength = metadata.getMaxTableNameLength();
            System.out.println("Max Table Name Length = " + maxLength);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

The result of the code snippet above is:

Max Table Name Length = 64

Maven Dependencies

<dependency>
    <groupId>com.mysql</groupId>
    <artifactId>mysql-connector-j</artifactId>
    <version>8.4.0</version>
</dependency>