试题详情
- 单项选择题 Examine the structure of the EMPLOYEES table:
You issue these statements: 
At the end of this transaction, what is true?（） A、You have no rows in the table.
B、You have an employee with the name of James.
C、You cannot roll back to the same savepoint more than once.
D、Your last update fails to update any rows because employee ID 180 was already eleted.
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