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单选题
An Alias can be an alternate name for which DB2 object?（）
A
Sequence
B
Trigger
C
Schema
D
View
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单选题Your web application requires the adding and deleting of many session attributes during a complex usecase. A bug report has come in that indicates that an important session attribute is being deleted too soonand a NullPointerException is being thrown several interactions after the fact. You have decided to create asession event listener that will log when attributes are being deleted so you can track down when theattribute is erroneously being deleted. Which listener class will accomplish this debugging goal？（）A
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单选题Which of the following is a characteristic of a schema?（）A
Foreign key references cannot cross schema boundaries.B
A DB2 user must be created before a schema with the same name can be created.C
If no schema is specified when an object is created, the default schema PUBLIC is used.D
A schema enables the creation of multiple objects in a database without encountering namespace collisions.
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单选题Which HttpSession method stores an object in a session？（）A
put（String name. Object value）B
set（String name. Object value）C
setAttribute（String name. Object value）D
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addAttribute（String name. Object value）
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多选题You want to make use of the object features available in the database for the form module you are developing. Which three statements about object types are true? （）AAn object type is a user-defined composite data type.BThe attributes of an object type can be those of other object types.CA PL/SQL table of records is an example of a nested object type.DAn object type must be declared as a type before the actual object itself can be declared.
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单选题Which statement is true regarding remote archive log file destinations？（）A
Only two destinations per remote database can be specified.B
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The REOPEN attribute must be used when using remote archive log file destinations.D
The service name is resolved by searching sqlnet.ora file for the remote database name.
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