Exam (elaborations)
Oracle 1z0-051 SQL Fundamentals I Practice Exam(Questions And Answers)
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Which two statements will drop the primary key defined on table EMP? The primary key name is PK_EMP. a. ALTER TABLE EMP DROP PRIMARY KEY; b. DROP CONSTRAINT PK_EMP; c. ALTER TABLE EMP DROP CONSTRAINT PK_EMP; d. ALTER CONSTRAINT PK_EMP DROP CASCADE; e. DROP CONSTRAINT PK_EMP ON EMP; ...
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