双代号网络图中，使无关系的工作一定不要关联，必须表达时，需要使用（）进行隔离。 ["竖线","虚线段","箭线","虚箭线"]
You are using Oracle Database 10g. You performed an incomplete recovery of your database and opened the database with the RESETLOGS option. What is the effect of opening the database with the RESETLOGS option？ （） ["This operation resets the SCN for the database.","This operation creates a new incarnation of the database.","This operation moves all the redo log files to a different location.","This operation deletes the old redo log files and creates new redo log files.","This operation updates all current datafiles and online redo logs and all subsequent archived redo logs with a new RESETLOGS SCN and time stamp."]
简述电子商务纠纷的管辖。
Note the following points describing various utilities in Oracle Database 11g： 1. It enables the transfer of data from one database to another. 2. It provides a complete solution for the backup， restoration， and recovery needs of the entire database. 3. It enables the loading of data from an external file into tables of an Oracle database. 4. It provides a tape backup management for the Oracle ecosystem. Which point describes the Oracle Data Pump utility（） ["1","2","3","4","1 and 3","1， 2， 3， and 4"]
A user named Arren is executing this query： select table_name，operation，undo_sql from flashback_transaction_query t， （select versions_xid as xid from employees versions between scn minvalue and maxvalue where employee_id = 123） e where t.xid = e.xid； When the query runs，he receives an ORA-01031： insufficient privileges error. Since the user owns the employees table，you know that it is not the problem. Which of the following SQL statements will correct this problem？（） [" GRANT SELECT ANY TRANSACTION TO ARREN"," GRANT SELECT ON FLASHBACK_TRANSACTION_QUERY TO ARREN"," GRANT SELECT_ANY_TRANSACTION TO ARREN"," GRANT FLASHBACK TO ARREN"," GRANT SELECT ANY VIEW TO ARREN"]
什么是唤醒调整（干预）如何让运动员放松或者紧张起来？
