电子商务的最大信息载体是（） 增值网。 因特网。 配送网。 电信网。
Which command is issued on an IBM Tivoli Workload Scheduler master to determine link status and collect into a user created report？ （） netstat -rn > 。 conman "sc" > 。 conman "show links" > 。 conman "disp lnk status" > 。
You are using the control file to maintain information about the database backups that are being performed by Recovery Manager (RMAN).Identify two scenarios is which you must have a recovery catalog. （）(Choose two.) To store the backup information of multiple database。 To restrict the amount of space that is used by the backups。 To maintain a backup for a certain time is set by the CONTROL_FILE_RECORD_KEEP_TIME parameter.。 To list the data files that were in a target database at a given time by using the AT option of REPORT SCHEMA command.。
Your Oracle Database 10g is online when you execute the following statement： SQL>ALTER TABLESPACE MY_TABLESPACE FLASHBACK OFF； What is the result of executing this statement if the Flashback Database feature is already enabled in the database？（） The database does not record flashback logs for MY_TABLESPACE。 The tables residing in MY_TABLESPACE are not protected by the Recycle Bin.。 All the tablespaces except MY_TABLESPACE can be recovered using Flashback Database feature.。 None of the flashback technologies， such as Flashback Table， Flashback Transaction Query and Flashback Version Query can be used to recover individual rows within the objects from MY_TABLESPACE。
其他中型水库和影响县城安全或坝高（）m以上小型水库的大坝安全评价由具有水利水电勘测设计乙级以上（含乙级）资质的单位承担。 10。 20。 30。 40。
How many individual archive-log destination directories are supported by Oracle Database11g?（）
