Oracle 中的from_tz函数，可以将一个timstamp和timzone拼成一个timestamp with timezoneSql代码 SQLgt; select from_tz(to_time
Oracle 中的from_tz函数，可以将一个timstamp和timzone拼成一个timestamp with timezone
Sql代码
但如果这个timestamp在指定的时区内不存在(比如由于夏令时，时钟往前拨了一个小时），就会抛Exception
Sql代码
解决办法嘛，，先取出时区的offset，用其构建好timestamp with timezone后再转回指定的时区就好了
Sql代码
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