中国人民银行授权外汇交易中心对外每日公布人民币对美元、欧元等的()。
A.买入价
B.中间价
C.卖出价
D.买入价、卖出价和中间价
第1题
A. The second user‘s session immediately produces the resource busy error.
B. The second user‘s command executes successfully.
C. The second user‘s session waits for a time period before producing the resource busy error.
D. A deadlock is created.
第2题
A.Createtherolewithexternalauthentication.
B.Createtheroleasasecureapplicationrole.
C.Createtheroleasapassword-protectedrole.
D.CreatearoleanduseFine-GrainedAccessControl(FGAC)tosecuretherole
第3题
A.Theusercannotusetheroleatall.
B.Therolewouldnotbegrantedtotheuser.
C.Theuserneedstoenabletheroleexplicitly.
D.Theusercanstartusingtheroleimmediately.
E.Theuserwouldhavetheadminoptionfortherole.
第4题
A. The user has dropped an important table that needs to be recovered.
B. The database files are corrupted when the database is open.
C. You are not able to start up the database instance because the required database files are missing.
D. The archived log files are missing for which backup is not available.
第5题
A.Databaseisnotopen
B.Listenerisnotrunning
C.Servicenameisnotcorrect
D.WrongportnumberusedinURL
E.Usersysdoeshavethemediaprivilege
第6题
A.RECOVERY_CATALOG_OWNER
B.DBA
C.RESOURCE
D.SELECTANYDICTIONARY
E.CONNECT
第7题
A. parallel image copy backup
B. backup with MAXPIECESIZE configured for the channel
C. parallel backup with MAXPIECESIZE configured for the channel
D. intrafile parallel backup
第8题
A. You can join a maximum of two tables through an equijoin.
B. You can join a maximum of two columns through an equijoin.
C. You specify an equijoin condition in the SELECT or FROM clauses of a SELECT statement.
D. To join two tables through an equijoin, the columns in the join condition must be primary key and foreign key columns.
E. You can join n tables (all having single column primary keys) in a SQL statement by specifying a minimum of n-1 join conditions.
第9题
A. A virtual private catalog owner can create a local stored script, and have read/write access to a global stored script.
B. The virtual private catalog owner cannot create and modify the stored scripts.
C. The set of views and synonyms that make up the virtual private catalog is stored in the schema of the RMAN recovery catalog owner.
D. To perform most of the RMAN operations, the virtual catalog owner must have the SYSDBA or SYSOPER privilege on the target database
第10题
A.ItmustbeusedbecauseallRMAN-relatedbackupandrecoverymetadatainformationiscontainedinit.
B.Itprovidesaconvenient,optional,repositoryofbackup-andrecovery-relatedmetadata.
C.ItprovidestheabilitytostoreRMANscriptsforglobalusebyanydatabasethathasaccesstotherepository.
D.ItprovidesameansofstoringallRMANbackupsetsphysicallyinanOracledatabaseserver.
E.Itprovidestheabilitytostorebackuprecordsformorethanayear.
为了保护您的账号安全,请在“上学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!