（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.
正确答案
答案解析
略
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