如何查看Oracle数据库中无效的对象，约束，触发器和索引

1、检查无效的数据库对象：

SELECT owner, object_name, object_type,status

FROM dba_objects

WHERE status = 'INVALID';

2、检查不起作用的约束：

SELECT owner, constraint_name, table_name, constraint_type, status

FROM dba_constraints

WHERE status = 'DISABLED';

3、检查无效的触发器：

SELECT owner, trigger_name, table_name, status

FROM dba_triggers

WHERE status = 'DISABLED';

4、检查失效的索引：

select index_name,table_name,tablespace_name,status

From dba_indexes

Where status<>'VALID';