Question

我正在尝试创建这些表，但我遇到了这个错误

错误代码：1005。无法创建表 estadisticas。tbl008_phase_competition（错误：150“外键约束不正确形成“）

当我尝试创建tbl008_phase_competition ...

时

create table if not exists `tbl015_seasons` (
    `id` smallint(4) unsigned not null auto_increment,
    `id_competition` smallint(2) unsigned not null,
    `description` varchar(100) not null,
    primary key(`id`),
    foreign key (`id_competition`) references `tbl001_competition` (`id`) 
)ENGINE = InnoDB;

create table if not exists `tbl012_phase` (
    `id` smallint(4) unsigned not null auto_increment,
    `name` varchar(100) not null,
    primary key (`id`) 
)ENGINE = InnoDB;

create table if not exists `tbl008_phase_competition` (
    `id_season` smallint(4) unsigned not null,
    `id_phase` smallint(4) unsigned not null,
    `year` int unsigned not null,
    primary key (`id_season`, `id_phase`),
    foreign key (`id_season`) references `tbl015_seasons` (`id`),
    foreign key (`id_phase`) references `tbl012_phase` (`id`) 
)ENGINE = InnoDB;

我做错了什么？

Answer 1

请不要在此表中声明主键并检查：

if(Session["count"] != null)
  count = (int)Session["count"];

MySQL：Errno：150“外键约束不正确”

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