【单选题】A support engineer reports that inserting new sales transactions in a SQL Server 2005 database results in an error. You investigate the error. You discover that in one of the databases, a developer ha...
A.
Back up the current transaction log. Restore the database with a different name and stop at the point just before the data loss. Copy the table back into the original database.
B.
Back up the current transaction log. Restore the database to the point just before the data loss.
C.
Restore the database from the existing backup files to a time just before the data loss.
D.
Restore the database to the point of the last full backup.
【单选题】李先生在去年以每股10元的价格购买了100股的中国电信股票,过去一年中得到的每股0.20元的红利,年底时,股票价格为每股15元,则持有期收益率为( )。
【单选题】下列哪一情形造成的抢救费用,交强险不用垫付?
【单选题】生品很少药用,煅淬后能增强散瘀接骨止痛作用的药物是
【单选题】You are creating a job class. You have issued the following command to create the job class: SQL> BEGIN DBMS_SCHEDULER.CREATE_JOB_CLASS( JOB_CLASS_NAME => ’LOW_PRIORITY_CLASS’, RESOUR...
A.
The command will be executed successfully.
B.
The command will fail because RESOURCE_CONSUMER_GROUP is an invalid parameter in the DBMS_SCHEDULER.CREATE_JOB_CLASS procedure.
C.
The command will fail because LOGGING_LEVEL is an invalid parameter in the DBMS_SCHEDULER.CREATE_JOB_CLASS procedure.
D.
The command will fail because LOG_HISTORY is an invalid parameter in the DBMS_SCHEDULER.CREATE_JOB_CLASS procedure.
E.
The command will fail because 1200 is an invalid value for the LOG_HISTORY parameter in the DBMS_SCHEDULER.CREATE_JOB_CLASS procedure.
【判断题】细菌的荚膜主要由多糖、果胶类物质和纤维素组成。
【单选题】已知χ2值为19,df=9,则该χ2值以上及以下的概论是
【单选题】生品不入药,煅淬后能增强温肾壮阳作用的药物是