Mysql unique two columns

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

0 vote214 views1 answer
Mysql add text to existing field
SQL
0 vote185 views1 answer
Mysql xampp reset root password
SQL
10 votes185 views1 answer
Oracle object dependencies
SQL
2 votes178 views1 answer
Sql server conection string
SQL
1 vote208 views3 answers
How to pass password to mysql command line
SQL
0 vote172 views1 answer
Postrgres trunc
SQL
13 votes197 views4 answers
Command line mysql import
SQL
22 votes191 views6 answers
Create sql table
SQL
3 votes234 views1 answer
Sql several or
SQL
0 vote179 views2 answers
Start mysql server using docker
SQL