Description:When I try to remove a unique index, MySQL Ver 5.7.26-0ubuntu0.19.04.1 says that it is needed in a foreign key constraint: mysql> ALTER TABLE project_erc20token DROP INDEX unique_token_data; ERROR 1553 (HY000): Cannot drop index 'unique_token_data': needed in a foreign key...
--报错:Cannot drop index 'IX_t_billing_setup_CustomerID_WarehouseID': needed in a foreign key constraint --百度发现:删除‘外键的’索引,必须先删除外键约束(仅会删除外键约束,字段和数据仍然在) --删除外键约束 alter table t_billing_setup drop foreign key FK_BillingSetup_Warehouse; alter table t_...
02429, 00000, "cannot drop index used for enforcement of unique/primary key" // *Cause: user attempted to drop an index that is being used as the // enforcement mechanism for unique or primary key. // *Action: drop the constraint instead of the index. 1:新建测试表TAB_TEST, 如下所示:...
02429, 00000, "cannot drop index used for enforcement of unique/primary key" // *Cause: user attempted to drop an index that is being used as the // enforcement mechanism for unique or primary key. // *Action: drop the constraint instead of the index. 1:新建测试表TAB_TEST, 如下所示:...
unique/primary key Question Posted / guest1 Answers 7654 Views I also Faced E-Mail Answers ORA-02429: cannot drop index used for enforcement of unique/primary key.. Answer / guest Cause: user attempted to drop an index that is being used as the enforcement mechanism for uni...
// *Cause: user attempted to drop an index that is being used as the // enforcement mechanism for unique or primary key. // *Action: drop the constraint instead of the index. 很明显,它具有索引和约束名的意义;也就是: 采用alter table tb1 add constraint unique(object_id); ...
相信不少人遇到过ORA-02429: cannot drop index used for enforcement of unique /primary key 这个错误,对应的中文提示“ORA-02429: 无法删除用于强制唯一/主键的索引”,其实从错误提示信息已经很明显了。下面还是用一个简单的例子述说一下该错误的来龙去脉。
Control'." While assigning stackpannel childrens(Controls) in to the Control i am getting this error (C# WPF)How could I hide a control (ex. a textbox) and display it again (Element Name) is not supported in a windows presentation foundation (WPF) project. (MVVM) - How To Bind to ...
Oracle Database Cloud Schema Service - Version N/A and later: Drop Tablespace Failed with ORA-02429: cannot drop index used for enforcement of unique/primary key
Flask中外键约束删除 "needed in a foreign key constraint" 定义2个表,如下图: IpFlowDetail的IpHeadId字段是关联了IpFlowHead表的外键,在后期发现不需要这个外键了,在删除这个外键关联字段column时,报出错误"Cannot drop index ‘IpHeadId’: needed in a foreign key constraint") 之后查看一下迁移的版本...