ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
#1.停止mysql數據庫
/etc/init
.d
/mysqld
stop
#2.執行如下命令
mysqld_safe --user=mysql --skip-grant-tables --skip-networking &
#3.使用root登錄mysql數據庫
mysql -u root mysql
#4.更新root密碼
mysql> UPDATE user SET Password=PASSWORD(
'newpassword'
) where USER=
'root'
;
#5.刷新權限
mysql> FLUSH PRIVILEGES;
#6.退出mysql
mysql> quit
#7.重啓mysql
/etc/init
.d
/mysqld
restart
#8.使用root用戶重新登錄mysql
mysql -uroot -p
Enter password: <輸入新設的密碼newpassword>
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
輸入 mysql -u root 登錄 mysql 的時候出現以下錯誤:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
出現這個問題的原因是沒有生成 mysql.sock 文件,沒有生成這個文件的原因是 /usr/local/mysql 目錄的權限不對:
chown -R mysql:mysql /usr/local/mysql 即可解決