Oracle常用数据字典

    以下表格中收集了Oracle数据字典中几乎所有的视图或别名，至于每个视图或别名的字段请用‘Describe’语句来查询。命名说明：Oracle数据字典中，对象名称多数以"USER."，"ALL."，"DBA."为前缀"USER."视图中记录通常记录执行查询的帐户所拥有的对象的信息，"ALL."视图中记录包括"USER"记录和授权至PUBLIC或用户的对象的信息，"DBA."视图包含所有数据库对象，而不管其所有者。

使用举例：
select * from dba_data_files 
查询表空间的信息(当前用户必须拥有DBA角色)。 
select owner , object_name ,object_type from all_objects 
查询某一用户下的所有表、过程、函数等信息。

详细字典内容如下：

ALL_CATALOG All tables, views, synonyms, sequences accessible to the user 
ALL_COL_COMMENTS Comments on columns of accessible tables and views 
ALL_COL_GRANTS_MADE Grants on columns for which the user is owner or grantor 
ALL_COL_GRANTS_RECD Grants on columns for which the user
                    or PUBLIC is the grantee 
ALL_COL_PRIVS Grants on columns for which the user is the grantor, grantee,
               owner, or an enabled role or PUBLIC is the grantee 
ALL_COL_PRIVS_MADE Grants on columns for which the user is owner or grantor 
ALL_COL_PRIVS_RECD Grants on columns for which the user,
                   PUBLIC or enabled role is the grantee 
ALL_CONSTRAINTS Constraint definitions on accessible tables 
ALL_CONS_COLUMNS Information about accessible columns
                 in constraint definitions 
ALL_DB_LINKS Database links accessible to the user 
ALL_DEF_AUDIT_OPTS Auditing options for newly created objects 
ALL_DEPENDENCIES Dependencies to and from objects accessible to the user 
ALL_ERRORS Current errors on stored objects that user is allowed to create 
ALL_INDEXES Descriptions of indexes on tables accessible to the user 
ALL_IND_COLUMNS COLUMNs comprising INDEXes on accessible TABLES 
ALL_OBJECTS Objects accessible to the user 
ALL_REFRESH All the refresh groups that the user can touch 
ALL_REFRESH_CHILDREN All the objects in refresh groups,
                     where the user can touch the group 
ALL_SEQUENCES Description of SEQUENCEs accessible to the user 
ALL_SNAPSHOTS Snapshots the user can look at 
ALL_SOURCE Current source on stored objects that user is allowed to create 
ALL_SYNONYMS All synonyms accessible to the user 
ALL_TABLES Description of tables accessible to the user 
ALL_TAB_COLUMNS Columns of all tables, views and clusters 
ALL_TAB_COMMENTS Comments on tables and views accessible to the user 
ALL_TAB_GRANTS_MADE Users grants and grants on users objects 
ALL_TAB_GRANTS_RECD Grants on objects for which the user or PUBLIC
                     is the grantee 
ALL_TAB_PRIVS Grants on objects for which the user is the grantor,
             grantee, owner, or an enabled role or PUBLIC is the grantee 
ALL_TAB_PRIVS_MADE Users grants and grants on users objects 
ALL_TAB_PRIVS_RECD Grants on objects for which the user,
                    PUBLIC or enabled role is the grantee 
ALL_TRIGGERS Triggers accessible to the current user 
ALL_TRIGGER_COLS Column usage in users triggers or in
                        triggers on users tables 
ALL_USERS Information about all users of the database 
ALL_VIEWS Text of views accessible to the user 
USER_AUDIT_CONNECT Audit trail entries for user logons/logoffs 
USER_AUDIT_OBJECT Audit trail records for statements concerning objects,
                  specifically: table, cluster, view, index, sequence,
                  [public] database link, [public] synonym, procedure, trigger,
                   rollback segment, tablespace, role, user 
USER_AUDIT_SESSION 　 
USER_AUDIT_STATEMENT Audit trail records concerning grant,
                     revoke, audit, noaudit and alter system 
USER_AUDIT_TRAIL Audit trail entries relevant to the user 
USER_CATALOG Tables, Views, Synonyms and Sequences owned by the user 
USER_CLUSTERS Descriptions of users own clusters 
USER_CLU_COLUMNS Mapping of table columns to cluster columns 
USER_COL_COMMENTS Comments on columns of users tables and views 
USER_COL_GRANTS Grants on columns for which the user
                 is the owner, grantor or grantee 
USER_COL_GRANTS_MADE All grants on columns of objects owned by the user 
USER_COL_GRANTS_RECD Grants on columns for which the user is the grantee 
USER_COL_PRIVS Grants on columns for which the user
                is the owner, grantor or grantee 
USER_COL_PRIVS_MADE All grants on columns of objects owned by the user 
USER_COL_PRIVS_RECD Grants on columns for which the user is the grantee 
USER_CONSTRAINTS Constraint definitions on users own tables 
USER_CONS_COLUMNS Information about accessible columns
                  in constraint definitions 
USER_CROSS_REFS Cross references for users views and synonyms 
USER_DB_LINKS Database links owned by the user 
USER_DEPENDENCIES Dependencies to and from a users objects 
USER_ERRORS Current errors on stored objects owned by the user 
USER_EXTENTS Extents comprising segments owned by the user 
USER_FREE_SPACE Free extents in tablespaces accessible to the user 
USER_INDEXES Description of the users own indexes 
USER_IND_COLUMNS COLUMNs comprising users
                        INDEXes or on users TABLES 
USER_JOBS All jobs owned by this user 
USER_OBJECTS Objects owned by the user 
USER_OBJECT_SIZE Sizes, in bytes, of various pl/sql objects 
USER_OBJ_AUDIT_OPTS Auditing options for users own tables and views 
USER_REFRESH All the refresh groups 
USER_REFRESH_CHILDREN All the objects in refresh groups,
                       where the user owns the refresh group 
USER_RESOURCE_LIMITS Display resource limit of the user 
USER_ROLE_PRIVS Roles granted to current user