Create user UserName Identified By UserPassword; //創建用戶
GRANT SELECT ANY DICTIONARY TO UserName; //授予所有字典的查詢權限
GRANT SELECT ANY SEQUENCE TO UserName; //授予所有序列的查詢權限
GRANT SELECT ANY TABLE TO UserName; //授予所有表的查詢權限
GRANT SELECT ANY VIEW TO UserName; //授予所有視圖的查詢權限