10月12日
You are contacted by a user who does not have permission to access a database table. You
determine after investigation that this user should be permitted to have access and so you
execute a GRANT statement to enable the user to access the table.
Which statement describes the activation of that access for the user?
A. The access does not take effect until the user logs out and back in.
B. The access does not take effect until the next time the server is started.
C. The access is available immediately.
D. The access does not take effect until you issue the FLUSH PRIVILEGES statement.
解析:REVOKE, DROP USER, DROP SERVER, and UNINSTALL PLUGIN 命令是不写缓存的,即需要重启或者FLUSH PRIVILEGES
grant 是立即生效的,
故选C