ORACLE用户的创建与授只读权
Create user UserName Identified By UserPassword; //创建用户
GRANT SELECT ANY DICTIONARY TO UserName; //授予所有字典的查询权限
GRANT SELECT ANY SEQUENCE TO UserName; //授予所有序列的查询权限
GRANT SELECT ANY TABLE TO UserName; //授予所有表的查询权限
GRANT SELECT ANY VIEW TO UserName; //授予所有视图的查询权限