单选题

You own a table called EMPLOYEES with this table structure: EMPLOYEE_ID NUMBER Primary Key FIRST_NAME VARCHAR2(25) LAST_NAME VARCHAR2(25) HIRE_DATE DATE What happens when you execute this DELETE statement? DELETE employees;()

AYou get an error because of a primary key violation.

BThe data and structure of the EMPLOYEES table are deleted.

CThe data in the EMPLOYEES table is deleted but not the structure.

DYou get an error because the statement is not syntactically correct.

正确答案

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答案解析