# session monkchat: banco de dados **Nome** Kevin Ribeiro de andrade **NUMERO** 27 **TURMA** INFOA ## DB DESIGN ![](https://i.imgur.com/hCrZWvb.png) ## create table ```sql= CREATE TABLE TB_SALA( id_sala int primary key auto_increment, nm_sala varchar(255), ds_senha int ); CREATE TABLE TB_USUARIO ( id_usuario int primary key auto_increment, ds_email varchar(255), ds_senha int, nm_nick varchar(255), dt_inclusao datetime ); CREATE TABLE TB_CHAT ( id_chat int primary key auto_increment, id_sala int, id_usuario int, nm_mensagem varchar (500), dt_mensagem datetime, foreign key id_sala references TB_SALA (id_sala), FOREIGN KEY id_usuario REFERENCES TB_USUARIO (id_usuario) ); ```