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​Structure of the ORDERITEMS Table

question 63

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​Structure of the ORDERITEMS table
​Structure of the ORDERITEMS table    -If a PRIMARY KEY constraint,named ORDERITEMS_PK,exists for the ORDER# and ITEM# columns of the ORDERITEMS table,which of the following commands will disable the constraint?​ A)  ALTER TABLE orderitems DISABLE PRIMARY KEY CONSTRAINT; B)  ALTER TABLE orderitems DISABLE CONSTRAINT orderitems_pk; C)  ALTER TABLE orderitems REMOVE PRIMARY KEY CONSTRAINT; D)  ​ALTER TABLE orderitems MODIFY PRIMARY KEY CONSTRAINT DISABLE;
-If a PRIMARY KEY constraint,named ORDERITEMS_PK,exists for the ORDER# and ITEM# columns of the ORDERITEMS table,which of the following commands will disable the constraint?​


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