Oracle数据库日常检查方法和步骤
conn /as sysdba shutdown immediate; startup mount; ALTER SYSTEM ENABLE RESTRICTED SESSION; ALTER SYSTEM SET JOB_QUEUE_PROCESSES=0; ALTER SYSTEM SET AQ_TM_PROCESSES=0; alter database open; ALTER DATABASE CHARACTER SET ZHS16GBK; select * from v$nls_parameters; select userenv('language') from dual; shutdown immediate; startup

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select a.tablespace_name, a.bytes / 1024 / 1024 "Sum MB", (a.bytes - b.bytes) / 1024 / 1024 "used MB", b.bytes / 1024 / 1024 "free MB", round(((a.bytes - b.bytes) / a.bytes) * 100, 2) "percent_used" from (select tablespace_name, sum(bytes) bytes from dba_data_files group by tablespace_name) a, (select tablespace_name, sum(bytes) bytes, max(bytes) largest from dba_free_space group by tablespace_name) b where a.tablespace_name = b.tablespace_name order by ((a.bytes - b.bytes) / a.bytes) desc

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