Bug #101270Error 1064: create table with foreign key Submitted:22 Oct 2020 4:39Modified:28 Oct 2020 11:00 Reporter:Dung NguyenEmail Updates: Status:DuplicateImpact on me: None Category:MySQL WorkbenchSeverity:S7 (Test Cases) Version:8.0.21OS:Windows (Microsoft Windows 10 Pro) ...
FOREIGN KEY (`jos_users_id`) REFERENCES `jos_users` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION) ENGINE = InnoDB DEFAULT CHARSET=utf8; This returns: #1005 - Can't create table '.\jo152\lfa_organizations.frm' (errno: 150) ...
26 PRIMARY KEY (`id`) 27 ) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8; 28 29 ALTER TABLE files ADD CONSTRAINT files_users_fk FOREIGN KEY(`user_id`) REFERENCES users(`id`); 可以看出 files 依赖表users ,依赖表不能先删除。也就是说,需要先删除当前表,再删除外键关联表 我们来看看概...
Bug #60229 Broken compatibility: Error while create table with foreign key constraints. Submitted: 24 Feb 2011 7:17Modified: 26 Aug 2013 6:31 Reporter: Abhilesh Khatri Email Updates: Status: Closed Impact on me: None Category: MySQL Server: DDLSeverity: S2 (Serious) Version: 5.5.9, ...
MySQL中create table语句的基本语法是: CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name [(create_definition,...)] [table_options] [select_statement] TEMPORARY:该关键字表示用create table新建的表为临时表,此表在当前会话结束后将自动消失。临时表主要被应用于存储过程中,对于目前尚不支持存储过程的MySQL...
PRIMARY KEY关键字用于定义列为主键。您可以使用多列来定义主键,列间以逗号分隔。 ENGINE 设置存储引擎,CHARSET 设置编码。 通过命令提示符创建表 通过mysql> 命令窗口可以很简单的创建MySQL数据表。你可以使用 SQL 语句CREATE TABLE来创建数据表。 以下为创建数据表...
班级，专业就需要和班级表，专业表进行关联，但是在添加外键的过程中却出现了“Cannot add foreign key ...
结论:mysql 默认的存储引擎是:InnoDB,默认的字符编码方式是:utf8 建表时指定存储引擎,以及字符编码方式。 create table t_product( id int primary key, name varchar(255) )engine = InnoDB default charset = utf8; mysql> show create table t_product; ...
Examples: MySQL CREATE TABLE The following statement will create 'NewPublisher' table which have columns like following - -- Create a new table named 'publisher' CREATE TABLE publisher( -- Define a column named 'pub_id' with a data type of VARCHAR(8) ...
FOREIGN KEY (c_type) REFERENCES Contacts (contact_type) ON DELETE CASCADE ON UPDATE CASCADE )ENGINE = INNODB; ...It works if i create the 2nd table without the 2nd FK: CREATE TABLE Contact_Organisation ( org_ID INT(10) UNSIGNED NOT NULL, c_type INT NOT NULL DEFAULT 1, ...