单选题
A The statement will be executed successfully， and a new time zone will be set for the database.
B The statement will be executed successfully， but a new time zone will not be set for the database.
C The statement will not be executed successfully because the SET TIME_ZONE clause can be used only with the ALTER SESSION statement.
D The statement will not be executed successfully because the ALTER DATABASE SET TIME_ZONE statement is used only when the database contains no table with the TIMESTAMP TO LOCAL TIME ZONE column.
正确答案
答案解析
略
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