第 54 题 (多选题)： Which two statements are true about GLOBAL TEMPORARY TABLES.

A. GLOBAL TEMPORARY TABLE rows inserted by a session are available to any other session whose user has been granted select on the table. B. A GLOBAL TEMPORARY TABLE's definition is available to multiple sessions. C. A TRUNCATE command issued in a session causes all rows in a GLOBAL TE MPORARY TABLE for the issuing session to be deleted. D. A DELETE command on a GLOBAL TEMPORARY TABLE cannot be rolled back. E. GLOBAL TEMPORARY TABLE space allocation occurs at session start. 显示答案