Oracle修改表空间大小并设置为自动增长
Oracle我在创建表空间的时候初始化大小为200M,当数据库中数据量达到这个值,再向数据库中导入数据就会报错,解决方法是扩展表空间。
查看数据文件名及数据文件存放路径:
select * from v$dbfile;
查看表空间的名称及大小
SELECT t.tablespace_name, round(SUM(bytes / (1024 * 1024)), 0) ts_size
FROM dba_tablespaces t, dba_data_files d
WHERE t.tablespace_name = d.tablespace_name
GROUP BY t.tablespace_name;
查看表空间物理文件的名称及大小
SELECT tablespace_name,
file_id,
file_name,
round(bytes / (1024 * 1024), 0) total_space
FROM dba_data_files
ORDER BY tablespace_name;
查看各表空间分配情况:
select tablespace_name,bytes/1024/1024 from dba_data_files order by bytes;
查看各表空间空闲情况
select tablespace_name, sum(bytes)/1024/1024 from dba_free_space group by tablespace_name;
更改表空间大小(10G)
alter database datafile '/oracle/oradata/powerdes/xxx.dbf' resize 10G;
查看表空间是否开启自动增长
SELECT FILE_NAME,TABLESPACE_NAME,AUTOEXTENSIBLE FROM dba_data_files;
设置表空间自动增长
ALTER DATABASE DATAFILE '/oracle/oradata/powerdes/xxx.dbf' AUTOEXTEND ON;//打开自动增长
ALTER DATABASE DATAFILE '/oracle/oradata/powerdes/xxx.dbf' AUTOEXTEND ON NEXT 200M ; //每次自动增长200m
ALTER DATABASE DATAFILE '/oracle/oradata/powerdes/xxx.dbf' AUTOEXTEND ON NEXT 200M MAXSIZE 20G; //每次自动增长200m,表空间最大不超过20G
查看回滚段名称及大小
SELECT segment_name,
tablespace_name,
r.status,
(initial_extent / 1024) initialextent,
(next_extent / 1024) nextextent,
max_extents,
v.curext curextent
FROM dba_rollback_segs r, v$rollstat v
WHERE r.segment_id = v.usn(+)
ORDER BY segment_name;
查看控制文件
SELECT NAME FROM v$controlfile;
查看日志文件
SELECT MEMBER FROM v$logfile;
查看表空间的使用情况
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$ts_free c
WHERE a.tablespace_name = b.tablespace_name
AND a.tablespace_name = c.tablespace_name;
查看数据库库对象
SELECT owner, object_type, status, COUNT(*) count#
FROM all_objects
GROUP BY owner, object_type, status;
查看数据库的版本
SELECT version
FROM product_component_version
WHERE substr(product, 1, 6) = 'Oracle';
查看数据库的创建日期和归档方式
SELECT created, log_mode, log_mode FROM v$database;
Tag标签:「表空间 增长」更新时间:「2021-11-05 00:55:39」阅读次数:「949」