undo_retention=undo size/(db_block_size*undo_block_per_sec) SQL>selectsum(d.bytes/1024/1024) "undo_mb"2fromv$datafile d, v$tablespace t, dba_tablespaces s3wheres.contents='UNDO'4ands.status='ONLINE'5and=s.table
You need to use CREATE USER sql command to add the user to the database and also need to add appropriate level of read/write access to the objects. You may also want to add that user to db_owner or ddl_admin or sysadmin to be able to read the statistics otherwise you may NOT ...
drwx--- 2 oracle dba 16384 Jun 20 21:51 lost+found 创建表空间 SQL> create tablespace chen 2 datafile '/test/chen.dbf' size 10M; Tablespace created. 向表空间增加数据文件 SQL> alter tablespace chen 2 add datafile '/test/chen2.dbf' size 10M; Tablespace altered. 可以看到表空间chen的大小是...
Oracle PDB 数据文件主要包括以下几种类型: 系统数据文件(System Datafile):存储PDB的系统表空间(System Tablespace)数据,包括数据字典和其他关键系统信息。 辅助数据文件(Sysaux Datafile):存储PDB的辅助表空间(Sysaux Tablespace)数据,主要用于存储数据字典对象、PL/SQL代码、AWR报告等。 撤销数据文件(Undo Datafile):存...
WhichtwostatementsaretrueregardingtransactionsinanOracledatabase() A. Multipletransactionscanusethesameundosegment. B. Atransactionisassignedanundosegmentwhenitisstarted. C. Morethanonetransactioncannotsharethesameextentintheundotablespace. D. Thetransactionsusesystemundosegmenttostoreundodataifallthe...
在旅游接待企业管理实践中,主要运用了哪些科学管理方法？（ ）The checking and mapping of electrical control circuit wiring is an important part of electrical installation and maintenance engineering. In practical engineering, it is a very practical method to ch...
Connect to Oracle, error 7302 Connecting to SQL Server without instance name Connection closed from application end Connection from Powershell to SQL using encryted connection string Connection has been closed by peer Connection is busy with results for another command Connection limit of 32,767 Conne...
(八)玩忽职守，造成错案或者给当事人造成严重损失；(九)拖延办案，贻误工作；(十)利用职权为自己或者他人谋取私利；(十一)从事营利性的经营活动；(十二)私自会见当事人及其代理人，接受当事人及其代理人的请客送礼；(十三)其他违法乱纪的行为。”D项的炒股行为属于从事营利性的经营活动。因此应选B。