ALTER TABLE t_base_funcmodel DROP CONSTRAINT pk_func_id; 这条语句会告知Oracle数据库从t_base_funcmodel表中移除名为pk_func_id的主键约束。验证主键约束是否已成功删除: 你可以通过查询数据字典视图来验证主键约束是否已经被成功删除。以下是一个查询示例,用于检查t_base_funcmodel表上是否还存在名为pk_fun...
ORA-02291: integrity constraint (SYS.T_FK) violated - parent key not found (違反了constraint,員工基本資料表根本沒有3號這個員工,何來的銷售紀錄。) SQL> drop table t; drop table t * ERROR at line 1: ORA-02449: unique/primary keys in table referenced by foreign keys (违反了constraint,员工...
不指定constraint_name删不了 oracle可以从user_constraints或user_col_constraints里获得constraint_name 或者采用先删除那个column alter table table_name drop column column_name 然后再重新加一下那个column alter table table_name add column_name ...;
We often need to drop the column in the table. There are two ways to drop the column in Oracle (a) alter table drop column in oracle (b) alter table set unused column in oracle DROP COLUMN using DROP COLUMN Here in this wedrop the column from table using below command. ALTER TABLE ...
对该对象的模式的 DROPIN 特权 对象的所有者(记录在该对象的目录视图的 OWNER 列中) 对该对象的 CONTROL 特权(仅适用于索引、索引规范、昵称、程序包、表和视图) 用户定义的类型的所有者(记录在 SYSCAT.DATATYPES 目录视图的 OWNER 列中)(仅当删除与用户定义的类型相关联的方法时适用) ...
This topic describes the conversion scope of constraint modification, dropping, and addition in ALTER TABLE DDL operations during data migration from an Oracle database to an Oracle tenant of OceanBase Database. Syntax constraint_clauses: { ADD { { out_of_line_constraint }... ...
Modify, drop, and add constraints,ApsaraDB for OceanBase:This topic describes the conversion scope of constraint modification, dropping, and addition in ALTER TABLE DDL operations during data migration from an Oracle database to an Oracle tenant of Ocean
Revoking oe's REFERENCES privilege on hr.employees causes Oracle to drop the in_emp constraint, because oe required the privilege to define the constraint. However, if oe has also been granted the REFERENCES privilege on hr.employees by a user other than you, then Oracle does not drop the ...
the 8.0.11, the 6.10.7 but in the scripts to update the database for delete foreign keys generates a drop constraint that gives a mysql error intead of drop foreign key, what version I should use to generate correctly the delete ?
Oracle Database - Enterprise Edition - Version 10.1.0.2 and laterInformation in this document applies to any platform.Symptoms After import of a table that contains a primary key constraint and corresponding index, a drop constraint does not drop the corresponding PK index. When trying to insert...