试题详情
- 单项选择题 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;（）
A、You get an error because of a primary key violation.
B、The data and structure of the EMPLOYEES table are deleted.
C、The data in the EMPLOYEES table is deleted but not the structure.
D、You get an error because the statement is not syntactically correct.
- C
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