题目内容

User USER1 wants to define a required relationship between two tables named TAB1 and TAB2 in such a way that whenever a record is deleted from table TAB1, any related records are deleted from table TAB2. What must user USER1 do to accomplish this、

2024-07-09

A.1) Create a primary key on table TAB1; 2) Create a foreign key on table TAB2 that references the primary key on table TAB1 and adheres to the ON DELETE CASCADE rule.

B.1) Create a primary key on table TAB2; 2) Create a foreign key on table TAB1 that references the primary key on table TAB2 and adheres to the ON DELETE CASCADE rule.

C.1) Create a primary key on table TAB1; 2) Create a foreign key on table TAB2 that references the primary key on table TAB1 and adheres to the ON DELETE RESTRICT rule.

D.1) Create a primary key on table TAB2; 2) Create a foreign key on table TAB1 that references the primary key on table TAB2 and adheres to the ON DELETE RESTRICT rul

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