/SQL/Mysql two column combination unique

Mysql two column combination unique

CREATE TABLE `content_html` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `id_box_elements` int(11) DEFAULT NULL,
  `id_router` int(11) DEFAULT NULL,
  `content` mediumtext COLLATE utf8_czech_ci NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `id_box_elements` (`id_box_elements`,`id_router`)
);

Source: stackoverflow.com

Mysql unique two columns

CREATE TABLE IF NOT EXISTS cliente (
	id bigint primary key auto_increment,
    nome varchar(100) not null,
    email varchar(100) not null unique,
    senha varchar(255) not null,
    documento varchar(50) not null unique,
    dataCadastro date not null
) ENGINE = InnoDB DEFAULT CHARSET = utf8mb4;

Similar codes

1 vote265 views1 answer
Oracle lock user
SQL
0 vote268 views1 answer
Sqlite update only if greater
SQL
0 vote272 views1 answer
How to connect pgadmin with excel
SQL
0 vote347 views2 answers
Insert data into multiple tables mysql
SQL
0 vote294 views1 answer
Spark sql grows beyond 64 kb
SQL
-1 vote296 views1 answer
Get month and year from date in mysql sequelize
SQL
1 vote288 views1 answer
Sql group by sum with condition
SQL
0 vote263 views1 answer
Get who is hired in january in sql
SQL
0 vote274 views1 answer
Psql datestyle
SQL
0 vote297 views1 answer
Manage Database in MySQL
SQL