Setting the Database Time Zone (80)

Set the database time zone when the database is created by using the SET TIME_ZONE
clause of the CREATE DATABASE statement. If you do not set the database time zone,
then it defaults to the time zone of the server's operating system.

You can change the database time zone for a session by using the SET TIME_ZONE
clause of the ALTER SESSION stateme

設定資料庫時區
1. 可透過SET TIME_ZONE 語句設定資料庫的時區 , 預設與作業系統相同
2. 可為不同的會話指定不同的時區

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