Last night, I was truncating some tables from an alien database, and while truncating one table I got below error, which is logical because tables were related by foreign key constraintMsg 4712, Level 16, State 1, Line 1Cannot truncate table ' ' because it is being referenced by ...
在Mysql中取消外键约束: SET FOREIGN_KEY_CHECKS=0 执行 truncatetablename 然后再设置外键约束: SET FOREIGN_KEY_CHECKS=1
1);1 row created.SQL> commit;Commit complete.SQL> truncate table b_1;Table truncated.SQL> truncate table a_1;truncate table a_1 *ERROR at line 1:ORA-02266: unique/primary keys in table referenced by enabled foreign keys1);
SQL> alter table tbl_a add constraint pk_tbl_a primary key(id); Table altered. SQL> alter table tbl_b add constraint pk_tbl_b primary key(id); Table altered. SQL> alter table tbl_b add constraint fk_tbl_b_a foreign key(a_id) references tbl_a(id); Table altered. 1. 2. 3. ...
Table altered SQL> alter table m add constraint fk_m_t_tid foreign key (tid) references t(id); Table altered //外键列建立索引 SQL> create index idx_m_tid on m(tid); Index created 注意:我们建立了两张数据表,m通过外键fk_m_t_tid与数据表t建立关联关系。此时,我们没有向数据表中插入任何...
Are referenced by a FOREIGN KEY constraint. (You can truncate a table that has a foreign key that references itself.) Participate in an indexed view. Are published by using transactional replication or merge replication. For tables with one or more of these characteristics, use the DELETE statem...
"Cannot truncate table 'XXXXX' because it is being referenced by a FOREIGN KEY constraint." 現在才知道若是這個資料表的主索引,是別的資料表的FK,則不能直接使用 truncate table,將所有相關性資料一次 清掉,若是依舊想要Trucate table,則最簡單方法就是把FK的設定拿掉,但是,每次測試資料完畢後,都要做這樣...
问题现象 对含有外键约束的主表进行 tuncate 操作时,报错 -5594, Cannot truncate a table referenced in a foreign key。 truncate 表操作。 obclient [OBORACLE]> truncate table f1; ORA-00600: internal error code, arguments: -5594 ...
SQL> truncate table tbl_a; truncate table tbl_a * ERROR at line 1: ORA-02266: unique/primary keys in table referenced by enabled foreign keys 此时提示了ORA-02266:唯一/主键被启用的外键引用 看看ORA-02266的解释: 02266, 00000, "unique/primary keys in table referenced by enabled foreign keys"...
在具有外键参照的表上完成TRUNCATE操作会收到报错信息“ORA-02266:unique/primarykeysintablereferencedbyenabledforeignkeys”。 简单模拟一下这个报错过程及处理方法。 1.创建主外键参照表中的主表T_PARENT并初始化数据 sys@ora10g>connsec/sec Connected. sec@ora10g>createtablet_parent(parent_idintprimarykey,...