解决方法是在Mysql中取消外键约束: SET FOREIGN_KEY_CHECKS=0; 然后将原来表的数据导出到sql语句,重新创建此表后,再把数据使用sql导入, 然后再设置外键约束: SET FOREIGN_KEY_CHECKS=1;
Marko introduced this bug to 4.1.12 and 5.0.5 when he fixedbug #9802. He removed ALL type checks if FOREIGN_KEY_CHECKS=0, while he should only have removed the charset check! Osku, please change the code so that the name of the parameter check_types is changed to check_charsets and...
set @@foreign_key_check=0 describe information_schema.key_column_usage; 查看表上的索引和foreign key select * from information_schema.key_column_usage where table_name='b'\G 查看表的哪个column被哪个表的column所引用 select * from information_schema.key_column_usage where referenced_table_name='a...
然后再设置外键约束: SET FOREIGN_KEY_CHECKS=1; 2. MySQL 5.1.48 导入 MySQL 5.7.18 时遇到 T FOREIGN_KEY_CHECKS = 0 错误的解决方法 #1064 – You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘T FOREIGN...
-- Do not check foreign key constraints SET FOREIGN_KEY_CHECKS = 0; 1. 2. Overview MySQL FOREIGN_KEY_CHECKS option: Syntax SET FOREIGN_KEY_CHECKS = 0 | 1 Default 1 Foreign keys are checked When Set to 1 Existing data are not re-validated ...
SQLite3 foreign_key_check失败,错误为%1 SQLite3是一种轻量级的关系型数据库管理系统,它被广泛用于嵌入式设备和移动应用程序中。foreign_key_check是SQLite3提供的一个用于检查外键约束的命令。当使用foreign_key_check命令时,如果出现失败,通常会返回一个错误代码。
然后再设置外键约束: SET FOREIGN_KEY_CHECKS=1; 2. MySQL 5.1.48 导入 MySQL 5.7.18 时遇到 T FOREIGN_KEY_CHECKS = 0 错误的解决方法 #1064 – You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘T FOREIGN...
I am looking for a way to not alter all table with the 'alter table ... nocheck contraint' and afterwards to set back to check constraint table by table. In MySQL you can set the foreign key checks off for a specific script without alter each table, e.g.: --Create Table script us...
Bug #82946 drop foreign key with FOREIGN_KEY_CHECKS=0 lead table lost when restart Submitted: 12 Sep 2016 8:51Modified: 12 Sep 2016 9:08 Reporter: zhang simon (OCA) Email Updates: Status: Duplicate Impact on me: None Category: MySQL Server: InnoDB storage engineSeverity: S1 (Critical...
Oracle数据库中,约束具体包括非空(NOT NULL)约束、唯一键(UNIQUE)约束、主键(PRIMARY KEY)约束、外键(FOREIGN KEY)约束和检查(CHECK)约束五种。 和数据表类似,约束也属于数据库对象,可以在建表的同时创建其相关约束,也可以在建表后单独添加;可以由用户命名,也可以由系统按照默认格式自动对约束进行命名;按照约束的定...