单项选择题

A.A query whose object names change during its executio……

Which is an example of a dynamic SELECT statement? （）

A.A query whose object names change during its execution.
B.A query whose object names are not known until run time.
C.A query whose bind variables values change during execution.
D.A query whose bind variable values are not known until run time.

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单项选择题Youcreateamaster-detailform.Theusersneedtobeabletoexittheformquickly,adheringtodefaulttransactionprocessing,regardlessofthecursorlocation.YoubelieveyoucanachievethisusingaKey-Exittrigger.Whatdoyouneedtodotoimplementthisrequest?（）

A.Define a Key-Exit trigger for all the blocks in the form.
B.In the Object Navigator, highlight all the items and define a Key-Exit trigger.
C.Define a Key-Exit trigger on the primary key item in the master block.
D.No additional key-trigger definition is necessary.

单项选择题Thetelesalesforcerequestedadditionalwaystoterminatetheautomatedpollingquestionnaire.Inadditiontothedefaultfunctionality,youprovideamenuitemandabuttonforthispurpose.Adheringtoefficientcodingpractices,whichPL SQLcodedoyouuseforthemenuitemandthebutton?（）

A.EXIT
B.EXIT_FORM
C.DO_KEY('Key-Exit')
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单项选择题Whichbuilt-incopiesvaluesfromalistitemintoarecordgroup?（）

A.RETRIEVE_LIST
B.RETRIEVE_GROUP
C.RETRIEVE_LIST_ITEM
D.RETRIEVE_GROUP_FROM_LIST
E.RETRIEVE_GROUP_FROM_LIST_ITEM

单项选择题hedatablocksinyourformmodulearebasedonobjecttables.Howwouldyoucreateamaster-detailrelationshipbetweentwooftheseblocks?（）

A.Use the Data Block Wizard and base the relation on a REF pointer.
B.In the Object Navigator, select the Relation node under the master block and click the Create icon. Build the relation manually and coordinate the blocks using triggers.
C.Use the Data Block Wizard, and base the relation on the primary key-foreign key relationship in the database.
D.This task is not possible because master-detail relations can be implemented only for blocks based on relational tables.

单项选择题Whichstatementaboutwindowsandblocksistrue?（）

A.Transaction management is block-oriented rather than window-oriented.
B.Forms automatically navigates to an item located in an activated window.
C.A window may contain multiple blocks, but each block can only span one window.
D.A window can contain multiple canvases, and an item can be located on multiple canvases.