錯誤問題的描述：

ERROR 1045 (28000): Access denied for user 'ODBC'@'localhost' (using password: NO)

ERROR 1045 (28000): Access denied for user 'ODBC'@'localhost' (using password: YES)

windows下，以上兩個錯誤的解決方法

解決方法：

　　1、找到配置檔案my.ini  ，然後將其開啟，可以選擇用NotePadd++開啟

2、開啟後，搜尋mysqld關鍵字

找到後，在mysqld下面新增skip-grant-tables

PS：若提示不讓儲存時，可以將該檔案剪下到桌面，更改儲存後再複製到mySQL目錄下

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.

[mysqld]
skip-grant-tables

# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M

# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin

# These are commonly set, remove the # and set as required.
basedir = D:\SoftWare\MySQL\mysql-5.7.11-winx64
datadir = D:\SoftWare\MySQL\mysql-5.7.11-winx64\Data
port = 3306
# server_id = .....

# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

 這樣，是用於跳過密碼問題，但是呢，這並不能徹底解決！

 3、重啟mysql服務

在任何路徑目錄下，都可以關閉/重啟mysql的服務呢。（因為，之前，已經配置全域性的環境變量了）

net stop mysql

net start mysql

4、進入資料庫，重設定密碼。

mysql -u root -p         Enter

不用管password          Enter

mysql> use mysql;      Enter

mysql> update mysql.user set authtntication_string=password('rootroot') where user='root';   （密碼自己設）

mysql> flush privileges;      重新整理資料庫

mysql> quit;

 5、密碼重設定成功，改好之後，再修改一下my.ini這個檔案，把我們剛才加入的"skip-grant-tables"這行刪除，儲存退出再重啟mysql服務就可以了。

 6、重啟mysql服務，並登入mysql使用者，使用者是root，密碼是rootroot。

D:\SoftWare\MySQL\mysql-5.7.11-winx64\bin> net stop mysql

D:\SoftWare\MySQL\mysql-5.7.11-winx64\bin> net start mysql

D:\SoftWare\MySQL\mysql-5.7.11-winx64\bin>mysql -u root -p

Enter password:rootroot

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