SELECT a.table_name, a.constraint_name FROM all_constraints a WHERE a.constraint_type = 'R' AND a.owner = 'YOUR_SCHEMA_NAME'; 将YOUR_SCHEMA_NAME替换为你的schema名称。 禁用单个外键约束 要禁用单个外键约束,你可以使用ALTER TABLE语句结合D
alter table tbl_employee disable constraint fk_emp; 删除约束: alter table tbl_department drop constraint pk_dept; 查询约束: select CONSTRAINT_NAME from user_constraints where table_name='TBL_EMPLOYEE'; select CONSTRAINT_NAME,COLUMN_NAME from user_cons_columns where table_name='TBL_EMPLOYEE'; 3....
ORA-00256: 无法翻译归档目的字符串 ORA-00257: 存档器错误。在释放之前仅限于内部连接 ORA-00258: NOARCHIVELOG 模式下的人工存档必须标识日志 ORA-00259: 日志 (打开线程 ) 为当前日志,无法存档 ORA-00260: 无法找到联机日志序列 (线程 ) ORA-00261: 正在存档或修改日志 (线程 ) ORA-00262: 当前日志 (关闭...
and table_name depicts the name of the table to which the constraint belongs. TheALL_CONSTRAINTShelps to get the metadata about all constraints that are accessible to the current user, regardless of the schema.
它的列与 ALL_CONSTRAINTS 中的列相同。 名称类型说明 owner name 约束的拥有者 constraint_schema name constraint_name name 约束名字 constraint_type text 索引类型 table_schema name table_name name 约束所在的表的名字 r_owner name 被引用约束的拥有者 r_constraint_schema name r_constraint_name name...
架构:列出要导入的架构子集,以区分大小写的方式表示为分号分隔列表。 例如,schema1;schema2。 如果该列表为空,则导入所有用户架构。 所有系统架构 (例如,默认情况下,SysAdmin) 和 对象将被忽略。 可接受的架构名称模式可以是静态名称,也可以包含通配符 %。 例如:A%;%B;%C%;D ...
you must disable those schemas by accessing System Administrator responsibility -> Security -> ORACLE -> Register and then selecting either "External" or "Disabled" for the schema in question. Conversely, if you want to flag specific schemas for migration, you can enable them by accessing System...
set constraint[s] constraint_name/all immediate/deferred; 2. sql> drop table table_name cascade constraints sql> drop tablespace tablespace_name including contents cascade constraints 3. define constraints while create a table sql> create table xay(id number(7) constraint xay_id primary key deferra...
The CONSTRAINT_TYPE column is filtered to display only the Check constraints. A filter icon is displayed on the column header of the filtered column. 5 . To remove the filter, right-click any of the column headers and select Remove All Filters. 6 . You have cleared the applied Check ...
get_ddl(object_type, object_name, schema_name) DBMS_OUTPUT enable(int4) disable() get_line(text, int4) get_lines(text[], int4) new_line() put(text) put_line(text) DBMS_RANDOM initialize(int4) -- deprecated in Oracle normal() ...