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

1 vote182 views1 answer
Mysql text to decimal
SQL
0 vote183 views1 answer
Ms sql filter all sympbol
SQL
10 votes204 views2 answers
Select nextval from sequence oracle
SQL
1 vote190 views1 answer
How to check the mysql version mac
SQL
0 vote198 views1 answer
How to create a table in sql stack overflow
SQL
1 vote202 views3 answers
Postgresql get difference between two dates
SQL
3 votes183 views2 answers
Install mysql powershell
SQL
0 vote198 views1 answer
T-SQL Never ending DELETE
SQL
1 vote224 views1 answer
How to check all scheduled jobs in oracle
SQL
-1 vote172 views2 answers
Sql convert date to string yyyy-mm-dd
SQL