我正在尝试在我的计算机上安装 MySQL，但我一直收到此错误：
我已经卸载了 8 次，任何帮助将不胜感激。我在谷歌上搜索了这个，但任何解决方案都可以解决我的问题。
防火墙被禁用并且已经有端口异常3306，但错误仍然不断出现：
编辑： 我遵循建议，但仍然无法在我的数据库中连接：
这是数据库中用户的选择，如您所见，所有用户的密码都相同：
看起来我可以ping但仍然收到连接错误：
编辑2： 创建用户并尝试使用它们进行连接后：
C:\Documents and Settings\Administrator>mysql --user=root --password mysql
Enter password: *********
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 5.5.22 MySQL Community Server (GPL)
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> create user 'valter'@'localhost' identified by 'greyfox';
Query OK, 0 rows affected (0.01 sec)
mysql> grant all privileges on *.* 'valter'@'localhost' with grant option;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use near ''val
er'@'localhost' with grant option' at line 1
mysql> grant all privileges on *.* to 'valter'@'localhost' with grant option;
Query OK, 0 rows affected (0.00 sec)
mysql> create user 'valter'@'%' identified by 'greyfox';
Query OK, 0 rows affected (0.01 sec)
mysql> grant all privileges on *.* to 'valter'@'%' with grant option;
Query OK, 0 rows affected (0.00 sec)
mysql> create user 'admin'@'localhost';
Query OK, 0 rows affected (0.00 sec)
mysql> grant reload process on *.* to 'admin'@'localhost';
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use near 'proc
ss on *.* to 'admin'@'localhost'' at line 1
mysql> grant reload, process on *.* to 'admin'@'localhost';
Query OK, 0 rows affected (0.00 sec)
mysql> create user 'dummy'@'localhost';
Query OK, 0 rows affected (0.01 sec)
mysql> select User, Host from mysql.user;
+--------+-----------+
| User | Host |
+--------+-----------+
| valter | % |
| root | 127.0.0.1 |
| root | ::1 |
| | localhost |
| admin | localhost |
| dummy | localhost |
| root | localhost |
| valter | localhost |
+--------+-----------+
8 rows in set (0.00 sec)
mysql> exit
Bye
C:\Documents and Settings\Administrator>mysql -u root -p
Enter password: *********
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 10
Server version: 5.5.22 MySQL Community Server (GPL)
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> select User, Host from mysql.user;
+--------+-----------+
| User | Host |
+--------+-----------+
| valter | % |
| root | 127.0.0.1 |
| root | ::1 |
| | localhost |
| admin | localhost |
| dummy | localhost |
| root | localhost |
| valter | localhost |
+--------+-----------+
8 rows in set (0.00 sec)
mysql>
当我尝试使用 Heidi 连接时，也会出现同样的错误：
编辑 3：
这里有一些我正在做的查询，以找出这个错误是什么：
C:\Documents and Settings\Administrator>mysqladmin -u root -p version
Enter password: *********
mysqladmin Ver 8.42 Distrib 5.5.22, for Win32 on x86
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Server version 5.5.22
Protocol version 10
Connection localhost via TCP/IP
TCP port 3306
Uptime: 7 hours 8 min 31 sec
Threads: 2 Questions: 43 Slow queries: 0 Opens: 39 Flush tables: 1 Open tab
les: 0 Queries per second avg: 0.001
C:\Documents and Settings\Administrator>
另一个命令：
C:\Documents and Settings\Administrator>mysqladmin -u root -p -h 'localhost' version variables;
Enter password: *********
mysqladmin: connect to server at ''localhost'' failed
error: 'Unknown MySQL server host ''localhost'' (0)'
Check that mysqld is running on 'localhost' and that the port is 3306.
You can check this by doing 'telnet 'localhost' 3306'
C:\Documents and Settings\Administrator>mysqladmin -h `localhost` --port=3306 ve
rsion
mysqladmin: connect to server at '`localhost`' failed
error: 'Unknown MySQL server host '`localhost`' (0)'
Check that mysqld is running on `localhost` and that the port is 3306.
You can check this by doing 'telnet `localhost` 3306'
这是my.ini文件：
# MySQL Server Instance Configuration File
# ----------------------------------------------------------------------
# Generated by the MySQL Server Instance Configuration Wizard
#
#
# Installation Instructions
# ----------------------------------------------------------------------
#
# On Linux you can copy this file to /etc/my.cnf to set global options,
# mysql-data-dir/my.cnf to set server-specific options
# (@localstatedir@ for this installation) or to
# ~/.my.cnf to set user-specific options.
#
# On Windows you should keep this file in the installation directory
# of your server (e.g. C:\Program Files\MySQL\MySQL Server X.Y). To
# make sure the server reads the config file use the startup option
# "--defaults-file".
#
# To run run the server from the command line, execute this in a
# command line shell, e.g.
# mysqld --defaults-file="C:\Program Files\MySQL\MySQL Server X.Y\my.ini"
#
# To install the server as a Windows service manually, execute this in a
# command line shell, e.g.
# mysqld --install MySQLXY --defaults-file="C:\Program Files\MySQL\MySQL Server X.Y\my.ini"
#
# And then execute this in a command line shell to start the server, e.g.
# net start MySQLXY
#
#
# Guildlines for editing this file
# ----------------------------------------------------------------------
#
# In this file, you can use all long options that the program supports.
# If you want to know the options a program supports, start the program
# with the "--help" option.
#
# More detailed information about the individual options can also be
# found in the manual.
#
#
# CLIENT SECTION
# ----------------------------------------------------------------------
#
# The following options will be read by MySQL client applications.
# Note that only client applications shipped by MySQL are guaranteed
# to read this section. If you want your own MySQL client program to
# honor these values, you need to specify it as an option during the
# MySQL client library initialization.
#
[client]
port=3306
[mysql]
default-character-set=latin1
# SERVER SECTION
# ----------------------------------------------------------------------
#
# The following options will be read by the MySQL Server. Make sure that
# you have installed the server correctly (see above) so it reads this
# file.
#
[mysqld]
# The TCP/IP Port the MySQL Server will listen on
port=3306
#Path to installation directory. All paths are usually resolved relative to this.
basedir="C:/MySQL/MySQL Server 5.5/"
#Path to the database root
datadir="C:/Documents and Settings/All Users/Dados de aplicativos/MySQL/MySQL Server 5.5/Data/"
# The default character set that will be used when a new schema or table is
# created and no character set is defined
character-set-server=latin1
# The default storage engine that will be used when create new tables when
default-storage-engine=INNODB
# Set the SQL mode to strict
sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
# The maximum amount of concurrent sessions the MySQL server will
# allow. One of these connections will be reserved for a user with
# SUPER privileges to allow the administrator to login even if the
# connection limit has been reached.
max_connections=100
# Query cache is used to cache SELECT results and later return them
# without actual executing the same query once again. Having the query
# cache enabled may result in significant speed improvements, if your
# have a lot of identical queries and rarely changing tables. See the
# "Qcache_lowmem_prunes" status variable to check if the current value
# is high enough for your load.
# Note: In case your tables change very often or if your queries are
# textually different every time, the query cache may result in a
# slowdown instead of a performance improvement.
query_cache_size=0
# The number of open tables for all threads. Increasing this value
# increases the number of file descriptors that mysqld requires.
# Therefore you have to make sure to set the amount of open files
# allowed to at least 4096 in the variable "open-files-limit" in
# section [mysqld_safe]
table_cache=256
# Maximum size for internal (in-memory) temporary tables. If a table
# grows larger than this value, it is automatically converted to disk
# based table This limitation is for a single table. There can be many
# of them.
tmp_table_size=9M
# How many threads we should keep in a cache for reuse. When a client
# disconnects, the client's threads are put in the cache if there aren't
# more than thread_cache_size threads from before. This greatly reduces
# the amount of thread creations needed if you have a lot of new
# connections. (Normally this doesn't give a notable performance
# improvement if you have a good thread implementation.)
thread_cache_size=8
#*** MyISAM Specific options
# The maximum size of the temporary file MySQL is allowed to use while
# recreating the index (during REPAIR, ALTER TABLE or LOAD DATA INFILE.
# If the file-size would be bigger than this, the index will be created
# through the key cache (which is slower).
myisam_max_sort_file_size=100G
# If the temporary file used for fast index creation would be bigger
# than using the key cache by the amount specified here, then prefer the
# key cache method. This is mainly used to force long character keys in
# large tables to use the slower key cache method to create the index.
myisam_sort_buffer_size=17M
# Size of the Key Buffer, used to cache index blocks for MyISAM tables.
# Do not set it larger than 30% of your available memory, as some memory
# is also required by the OS to cache rows. Even if you're not using
# MyISAM tables, you should still set it to 8-64M as it will also be
# used for internal temporary disk tables.
key_buffer_size=10M
# Size of the buffer used for doing full table scans of MyISAM tables.
# Allocated per thread, if a full scan is needed.
read_buffer_size=64K
read_rnd_buffer_size=256K
# This buffer is allocated when MySQL needs to rebuild the index in
# REPAIR, OPTIMZE, ALTER table statements as well as in LOAD DATA INFILE
# into an empty table. It is allocated per thread so be careful with
# large settings.
sort_buffer_size=256K
#*** INNODB Specific options ***
# Use this option if you have a MySQL server with InnoDB support enabled
# but you do not plan to use it. This will save memory and disk space
# and speed up some things.
#skip-innodb
# Additional memory pool that is used by InnoDB to store metadata
# information. If InnoDB requires more memory for this purpose it will
# start to allocate it from the OS. As this is fast enough on most
# recent operating systems, you normally do not need to change this
# value. SHOW INNODB STATUS will display the current amount used.
innodb_additional_mem_pool_size=2M
# If set to 1, InnoDB will flush (fsync) the transaction logs to the
# disk at each commit, which offers full ACID behavior. If you are
# willing to compromise this safety, and you are running small
# transactions, you may set this to 0 or 2 to reduce disk I/O to the
# logs. Value 0 means that the log is only written to the log file and
# the log file flushed to disk approximately once per second. Value 2
# means the log is written to the log file at each commit, but the log
# file is only flushed to disk approximately once per second.
innodb_flush_log_at_trx_commit=1
# The size of the buffer InnoDB uses for buffering log data. As soon as
# it is full, InnoDB will have to flush it to disk. As it is flushed
# once per second anyway, it does not make sense to have it very large
# (even with long transactions).
innodb_log_buffer_size=1M
# InnoDB, unlike MyISAM, uses a buffer pool to cache both indexes and
# row data. The bigger you set this the less disk I/O is needed to
# access data in tables. On a dedicated database server you may set this
# parameter up to 80% of the machine physical memory size. Do not set it
# too large, though, because competition of the physical memory may
# cause paging in the operating system. Note that on 32bit systems you
# might be limited to 2-3.5G of user level memory per process, so do not
# set it too high.
innodb_buffer_pool_size=17M
# Size of each log file in a log group. You should set the combined size
# of log files to about 25%-100% of your buffer pool size to avoid
# unneeded buffer pool flush activity on log file overwrite. However,
# note that a larger logfile size will increase the time needed for the
# recovery process.
innodb_log_file_size=10M
# Number of threads allowed inside the InnoDB kernel. The optimal value
# depends highly on the application, hardware as well as the OS
# scheduler properties. A too high value may lead to thread thrashing.
innodb_thread_concurrency=8