copy自：查看Oracle当前用户下的（表，视图，同义词，索引等...）
表空间
– 查看当前用户表空间
select username,default_tablespace from user_users; select default_tablespace from dba_users where username='用户名'
– 查询表空间下的用户
select distinct s.owner from dba_segments s where s.tablespace_name ='表空间名';
– 查看当前用户下所有表空间的使用情况：
SELECT a.tablespace_name "表空间名", total / (1024 * 1024) "表空间大小(M)", free / (1024 * 1024) "表空间剩余大小(M)", (total - free) / (1024 * 1024) "表空间使用大小(M)", round((total - free) / total, 4) * 100 "使用率 %" FROM (SELECT tablespace_name, SUM(bytes) free FROM dba_free_space GROUP BY tablespace_name) a, (SELECT tablespace_name, SUM(bytes) total FROM dba_data_files GROUP BY tablespace_name) b WHERE a.tablespace_name = b.tablespace_name;
SELECT UPPER(F.TABLESPACE_NAME) "表空间名",
D.TOT_GROOTTE_MB "表空间大小(M)",
D.TOT_GROOTTE_MB - F.TOTAL_BYTES "已使用空间(M)",
TO_CHAR(ROUND((D.TOT_GROOTTE_MB - F.TOTAL_BYTES) / D.TOT_GROOTTE_MB * 100,
2),
'990.99') || '%' "使用比",
F.TOTAL_BYTES "空闲空间(M)",
F.MAX_BYTES "最大块(M)"
FROM (SELECT TABLESPACE_NAME,
ROUND(SUM(BYTES) / (1024 * 1024), 2) TOTAL_BYTES,
ROUND(MAX(BYTES) / (1024 * 1024), 2) MAX_BYTES
FROM SYS.DBA_FREE_SPACE
GROUP BY TABLESPACE_NAME) F,
(SELECT DD.TABLESPACE_NAME,
ROUND(SUM(DD.BYTES) / (1024 * 1024), 2) TOT_GROOTTE_MB
FROM SYS.DBA_DATA_FILES DD
GROUP BY DD.TABLESPACE_NAME) D
WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME
ORDER BY 1;
– Oracle数据库整库大小
select sum(bytes)/1024/1024/1024 from dba_data_files;
– 实际数据文件大小
select sum(bytes/1024/1024/1024) from dba_segments where owner='IBP_HC'; select distinct owner from dba_segments; select distinct segment_type from dba_segments;
–1：用户
--查看当前用户的表空间 select username,default_tablespace from user_users; -- 查看当前用户的角色 select * from user_role_privs; -- 查看当前用户的系统权限和表级权限 select * from user_sys_privs; select * from user_tab_privs; -- 显示当前会话所具有的权限 select * from session_privs; -- 查看用户下所有的表 select * from user_tables; -- 显示指定用户所具有的系统权限 select * from dba_sys_privs where grantee='HUACHUANG';–2：表
-- 查看当前用户下所有的表
select * from user_tables;
-- 查看指定用户下的所有表
select a.TABLE_NAME from all_tables a where a.OWNER = upper('IBP_AUTH');
-- 查看名称包含log字符的表
select object_name,object_id from user_objects where instr(object_name,'LOG')>0;
-- 查看某表的创建时间
select object_name,created from user_objects where object_name=upper('&table_name');
select object_name,created from user_objects where object_name=upper('表名');
-- 查看某表的大小
select sum(bytes)/(1024*1024) as "size(M)" from user_segments where segment_name=upper('&table_name');
-- 查看放在ORACLE的内存区里的表
select table_name,cache from user_tables where instr(cache,'Y')>0;
–3：索引
查看索引个数和类别
select index_name,index_type,table_name from user_indexes order by table_name;
-- 查看索引被索引的字段
select * from user_ind_columns where index_name=upper('&index_name');
-- 查看索引的大小
select sum(bytes)/(1024*1024) as "size(M)" from user_segments
where segment_name=upper('&index_name');
–4：序列号查看序列号，last_number是当前值 select * from user_sequences;
–5：视图
--查看视图的名称
select view_name from user_views;
-- 查看创建视图的select语句
select view_name,text_length from user_views;
set long 2000; --说明：可以根据视图的text_length值设定set long 的大小
select text from user_views where view_name=upper('&view_name');
select text from user_views where view_name=upper('V_CUST_GRADE_ALL');
–6：同义词
--查看同义词的名称 select * from user_synonyms; -- 创建同义词 create synonym table_name for user2.table_name; -- 权限不足问题解决(切换到user2用户下) GRANT CREATE SYNONYM TO user1;
–7 约束条件
--查看某表的约束条件
select constraint_name, constraint_type,search_condition, r_constraint_name
from user_constraints where table_name = upper('&table_name');
–8 存储函数和过程--查看函数和过程的状态
select object_name,status from user_objects where object_type='FUNCTION'; select object_name,status from user_objects where object_type='PROCEDURE';
--查看函数和过程的源代码
select text from all_source where owner=user and name=upper('&plsql_name');
–9：查看建表语句
SELECT DBMS_METADATA.GET_DDL('TABLE','TB_TRANSA_CASH_TRADING_INFO')FROM DUAL; (表名TABLE_NAME一定要来大写)