The control logic makes use of COM objects (3) to access the database.
控制逻辑利用COM对象(3)来访问数据库。
When multiple database objects access each other, the sequence is known as a chain.
当多个数据库对象互相访问时，该序列称为链。
When multiple database objects access each other, the sequence is known as a chain.
当多个数据库对象互相访问时，该序列称为链。
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