当前我国社会上存在的错误人生观主要有哪些？

A. 完全缴纳
B. 不缴纳
C. 适当缴纳

A. To simplify the process of creating new users using the CREATE USER xxx IDENTIFIED by yyy statement.
B. To grant a group of related privileges to a user.
C. When the number of people using the database is very high.
D. To simplify the process of granting and revoking privileges.
E. To simplify profile maintenance for a user who is constantly traveling.