首页计算机考试Oracle认证
(单选题)

You want to implement a master-detail relation between data blocks based on object tables. How would you do this? ()

ACreate the relation manually and coordinate the blocks using triggers. 

BBase the relation on a REF pointer using the Data Block Wizard. 

CBase the relation on a foreign key using the Data Block Wizard. 

DThis task is not possible because master-detail relations can be implemented only for blocks based on relation tables.

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