mariadb add foreign key

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Martha
09 May 2019
1alter table group_a 
2add constraint fk_b_in_a
3foreign key(`b_id`) 
4    references group_b(`b_id`)
5    on delete set null
6    on update set null;
Tom
11 Apr 2020
1CREATE TABLE IF NOT EXISTS `scores` (
2  `ID` int(11) NOT NULL AUTO_INCREMENT,
3  UserId int(11) NOT NULL,
4  `NICKNAME` varchar(50) NOT NULL,
5  `HIGHSCORE` int(11) NOT NULL,
6  PRIMARY KEY (`ID`),
7  FOREIGN KEY (UserId) REFERENCES USER(Id)
8);
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Claudio
03 May 2019
1alter table caixa add foreign key (idcaixafluxo) references caixafluxo (idcaixafluxo);
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