单项选择题

Which correctly describes the tiers of the Oracle Workflow architecture?（）

A. Oracle Database tier and Application server tier only
B. Oracle Database tier, Application server tier, and End-user client tier only
C. Oracle Database tier, Application server tier, and Development client tier only
D. Oracle Database tier, Application server tier, Development client tier, and End-user client tier

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多项选择题

Which three statements are characteristic of the MEMORY storage engine?（）

A.It can support transactions
B.Table contents are not saved if the server is restarted
C.It cannot contain text or BLOB columns
D.It can support foreign keys
E.Each table is represented on disk as an.frm file
F.Each table has a corresponding.MYI and .MYD file

单项选择题

Given：

What is the result？（）

A.An Exception is thrown with no other output
B.B, followed by an Exception.
C.Compilation fails due to an error on line 9.
D.Compilation fails due to an error on line 15.

多项选择题

Which three statements are true about the stages of database startup？（）

A.Data files and redo log files can be renamed at the MOUNT stage.
B.Control files are read at the OPEN stage for the location of data files.
C.Control files are required to bring the database to the NOMOUNT stage.
D.Data files and redo log files are made available to users at the OPEN stage.
E.Data files and online redo log files are checked for consistency while opening the database