Your database operates in ARCHIVELOGmode. The redo log files are not multiplexed and one of the online redo logs is missing. The missing redo log sequence， 230， is not archived and it contained information from 10：35 a.m. onwards. The current time is 11：00 a.m. Because of a disk crash， you executed the following command to perform an incomplete recovery： RMAN> RUN { 2> SET UNTIL SEQUENCE 230 THREAD 1； 3> ALTER DATABASE MOUNT； 4> RESTORE DATABASE； 5> RECOVER DATABASE； 6> ALTER DATABASE OPEN RESETLOGS； 7> }； With reference to this scenario， which statement is true？（） RMAN recovers up to log sequence 230， but not including 230.。 RMAN returns an error because the log sequence number mentioned in the command should be 229.。 RMAN returns an error because the log sequence number mentioned in the command may never be missing.。 RMAN recovers up to and including log sequence 229 but then returns an error because log sequence 230 is missing.。
正常生产情况下稳定区轻油产品的进罐前压力应控制在（） 越高越好。 0.4MPa左右。 越低越好。
When the doSomething method is called， after which line does the Object created in line 5 become available for garbage collection？（） Line 5。 Line 6。 Line 7。 Line 8。 Line 9。 Line 10。
Examine this command: SQL > exec DBMS_STATS.SET_TABLE_PREFS (‘SH’, ‘CUSTOMERS’, ‘PUBLISH’, ‘false’); Which three statements are true about the effect of this command?（） Statistics collection is not done for the CUSTOMERS table when schema stats are gathered.。 Statistics collection is not done for the CUSTOMERS table when database stats are gathered.。 Any existing statistics for the CUSTOMERS table are still available to the optimizer at parse time.。 Statistics gathered on the CUSTOMERS table when schema stats are gathered are stored as pending statistics.。 Statistics gathered on the CUSTOMERS table when database stats are gathered are stored as pending statistics.。
简述数据电文的原件规制
社会保险费有养老保险费和（）等
