Oracle 查看索引表空间
时间:2021-07-01 10:21:17
帮助过:4人阅读
1、查看表空间的使用情况
Java代码
-
- select sum(bytes)/(1024*1024) as free_space,tablespace_name
- from dba_free_space
- group by tablespace_name;
-
-
- SELECT A.TABLESPACE_NAME,A.BYTES TOTAL,B.BYTES USED, C.BYTES FREE,
- (B.BYTES*100)/A.BYTES "% USED",(C.BYTES*100)/A.BYTES "% FREE"
- FROM SYS.SM$TS_AVAIL A,SYS.SM$TS_USED B,SYS.SM$TS_FREE C
- WHERE A.TABLESPACE_NAME=B.TABLESPACE_NAME AND A.TABLESPACE_NAME=C.TABLESPACE_NAME;
2、查看数据库库对象
- select owner, object_type, status, count(*) count# from all_objects group by owner, object_type, status;
3、查看数据库的版本
- Select version FROM Product_component_version
- Where SUBSTR(PRODUCT,1,6)=‘Oracle‘;
4、查看数据库创建日期和归档方式
- Select Created, Log_Mode, Log_Mode From V$Database;
5、查询数据库中索引占用表空间的大小
- select a.segment_name,a.tablespace_name,b.table_name,a.bytes/1024/1024 mbytes,a.blocks
- from user_segments a, user_indexes b
- where a.segment_name = b.index_name
- and a.segment_type = ‘INDEX‘ --索引
- and a.tablespace_name=‘APPINDEX‘ --表空间
- and b.table_name like ‘%PREP%‘ --索引所在表
- order by table_name,a.bytes/1024/1024 desc
Oracle 查看索引表空间
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