未知题型
A、15B、17C、21D、19正确答案:21
创建的临时表仅在当前会话可见,会话关闭时会自动删除。
未知题型创建的临时表仅在当前会话可见,会话关闭时会自动删除。
Reduce the informality of this sentence, and re-write t...
问答题Reduce the informality of this sentence, and re-write the new sentence in the box. Q7: These special tax laws have been enacted in six states: Illinois, Iowa, Ohio, etc.
()类型的字段用于存储固定长度的字符串。
未知题型()类型的字段用于存储固定长度的字符串。