The database administrator of your company created a public synonym called HR for the HUMAN_RESOURCES table of the GENERAL schema, because many users frequently use this table. As a user of the database, you created a table called HR in your schema. What happens when you execute this query? SELECT * FROM HR; ()
第1题:
当舞台照明采用可控硅调光设备时,其电源变压器宜采用的接线方式为()。
第2题:
An administrator has added a new device to a system and wants to determine if it has been correctly added to the ODM database. Which command would the system administrator use?()
第3题:
Which of the following is not responsibility of DBA(Data Base Administrator)?
A.Database management system design
B.Database schema definition
C.Database schema modification
D.Integrity constraint specification
第4题:
You work as a database administrator for Supportcenter.cn. One of the database users accidentally deleted all the rows of a critical table and committed the delete at 1:30 p.m. You senior database administrator, SupportCenter, asks you to retrieve the lost data. Which two actions would you use to ensure that there is no impact on other connected users while retrieving the deleted rows?()
第5题:
You work as a database administrator for Certkiller .com. Your database is in NOARCHIVELOG mode and you want to perform a backup. Which type of backup would be appropriate in this case? ()
第6题:
An administrator determines that performance has degraded for a WebSphere Commerce database. Which of the following steps should be performed to correct this problem?()
第7题:
A system administrator needs to provision storage for a 200GB database. The database must have extremely low seek time. Which of the following is the BEST solution?()
第8题:
A. show ip ospf [process - id] interface
B. show ip ospf neighbor
C. show ip ospf [process - id]
D. show ip ospf [process - id area - id] database
第9题:
A junior level Database Administrator erroneously deleted the database alert log while users were accessing the database. Which action should you take to recover the alert log?()
第10题:
Every Sunday the Unix system administrator has a job that executes a full backup of the entire Unix system your database is on. Is this backup usable for backup and recovery of your database?()