是否可以为MySQL创建登录触发器?我正在尝试玩processlist
表,但它不工作:
use information_schema
CREATE TRIGGER test AFTER UPDATE ON information_schema.processlist FOR EACH ROW BEGIN END;
它的结果是:
ERROR 1044 (42000): Access denied for user 'root'@'localhost' to database 'information_schema'
这里出了什么问题?
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