Consider the following SQL code to generate a table for storing data about a music library. CREATE TABLE playlists ( id INTEGER PRIMARY KEY AUTOINCREMENT, name TEXT ); CREATE TABLE songs ( id INTEGER PRIMARY KEY AUTOINCREMENT, title TEXT, artist TEXT, album TEXT, year NUMERIC, playlist_id INTEGER, FOREIGN KEY(playlist_id) REFERENCES playlists(id) ); Critique the design of this database, as by proposing and explaining at least two ways in which its design could be improved. Hint: Might songs end up with (lots of!) duplicate values in some columns?

Design a class tictactoe that: holds the following information about the game: two-dimensional array (3 by 3), and winner. add additional variables as needed. includes the functions to perform the various operations on objects. for example, function to print the board, getting the move, checking if move is valid, determining if there is a winner after each move. add additional operations as needed. includes constructor(s). write the functions of the class, and write a program that uses the class. the program should declare an object of type tictactoe. the program will create the board and store it in the array. the program will allow two players to play the tic-tac-toe game. after every valid move update the array, check if there is a winner. if there is no winner and no tie, then print the board again to continue.