参考别人的经验，加上自己的理解，完成下面的动作。
==============================
(2)创建 mysql 的安装目录及数据库存放目录
(3)创建 mysql 用户及用户组
因为我之前已经安装过一次，所以上面说用户组和用户已存在。
(4)安装 mysql
参数说明：
-DCMAKE_INSTALL_PREFIX=/usr/local/mysql //安装目录
-DINSTALL_DATADIR=/usr/local/mysql/data //数据库存放目录
-DDEFAULT_CHARSET=utf8 //使用utf8字符
-DDEFAULT_COLLATION=utf8_general_ci //校验字符
-DEXTRA_CHARSETS=all //安装所有扩展字符集
-DENABLED_LOCAL_INFILE=1 //允许从本地导入数据
执行 cmake 命令。
执行 make 命令。
执行 make install 命令。
(5)设置目录权限
上述命令将数据目录 data 的所属用户和所属用户组均设置为 mysql ，而将 mysql 目录下的其他文件的所属用户设置为 root ，所属组设置为 mysql 。
(6)设置 mysql 配置文件
(7)创建系统数据库的表
(8)设置环境变量
(9)启动 mysql 服务器
若想使用 service 命令启动 mysql 需要将 mysql 启动脚本 support-files/mysql.server 添加到 /etc/init.d 目录下，如下设置：
(10)为 root 账号添加远程连接的能力
(11)删除本机匿名连接的空密码帐号
==============================
【源码安装 mysql-5.6.10】
(1)解压 mysql 源码|
1
2
|
[root@Betty Me_wget]
# tar zxvf mysql-5.6.10.tar.gz
[root@Betty Me_wget]
# cd mysql-5.6.10
|
(2)创建 mysql 的安装目录及数据库存放目录
|
1
2
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[root@Betty mysql-5.6.10]
# mkdir -p /usr/local/mysql
[root@Betty mysql-5.6.10]
# mkdir -p /usr/local/mysql/data
|
(3)创建 mysql 用户及用户组
|
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[root@Betty mysql-5.6.10]
# groupadd mysql
groupadd: group mysql exists
[root@Betty mysql-5.6.10]
# useradd -r -g mysql mysql
useradd
: user mysql exists
[root@Betty mysql-5.6.10]
#
|
(4)安装 mysql
参数说明：
-DCMAKE_INSTALL_PREFIX=/usr/local/mysql //安装目录
-DINSTALL_DATADIR=/usr/local/mysql/data //数据库存放目录
-DDEFAULT_CHARSET=utf8 //使用utf8字符
-DDEFAULT_COLLATION=utf8_general_ci //校验字符
-DEXTRA_CHARSETS=all //安装所有扩展字符集
-DENABLED_LOCAL_INFILE=1 //允许从本地导入数据
执行 cmake 命令。
|
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[root@Betty mysql-5.6.10]
# cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/mysql -DMYSQL_DATADIR=/usr/local/mysql/data -DDEFAULT_CHARSET=utf8 -DDEFAULT_COLLATION=utf8_general_ci -DEXTRA_CHARSETS=all -DENABLED_LOCAL_INFILE=1
-- Running cmake version 2.8.10.2
-- The C compiler identification is GNU 4.1.2
-- The CXX compiler identification is GNU 4.1.2
-- Check
for
working C compiler:
/usr/bin/cc
-- Check
for
working C compiler:
/usr/bin/cc
-- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info -
done
-- Check
for
working CXX compiler:
/usr/bin/c
++
-- Check
for
working CXX compiler:
/usr/bin/c
++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info -
done
......
-- Check size of pthread_t
-- Check size of pthread_t -
done
-- Performing Test HAVE_PEERCRED
-- Performing Test HAVE_PEERCRED - Success
-- Googlemock was not found. gtest-based unit tests will be disabled. You can run cmake . -DENABLE_DOWNLOADS=1 to automatically download and build required components from
source
.
-- If you are inside a firewall, you may need to use an http proxy:
export
http_proxy=http:
//foo
.bar.com:80
Warning: Bison executable not found
in
PATH
-- Configuring
done
-- Generating
done
-- Build files have been written to:
/root/Me_wget/mysql-5
.6.10
[root@Betty mysql-5.6.10]
#
|
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[root@Betty mysql-5.6.10]
# make
Scanning dependencies of target INFO_BIN
[ 0%] Built target INFO_BIN
Scanning dependencies of target INFO_SRC
[ 0%] Built target INFO_SRC
Scanning dependencies of target abi_check
[ 0%] Built target abi_check
Scanning dependencies of target zlib
[ 0%] Building C object zlib
/CMakeFiles/zlib
.
dir
/adler32
.c.o
[ 0%] Building C object zlib
/CMakeFiles/zlib
.
dir
/compress
.c.o
[ 0%] Building C object zlib
/CMakeFiles/zlib
.
dir
/crc32
.c.o
[ 0%] Building C object zlib
/CMakeFiles/zlib
.
dir
/deflate
.c.o
[ 0%] Building C object zlib
/CMakeFiles/zlib
.
dir
/gzio
.c.o
....
Linking CXX static library libsql_embedded.a
[ 99%] Built target sql_embedded
[ 99%] Generating mysqlserver_depends.c
Scanning dependencies of target mysqlserver
[ 99%] Building C object libmysqld
/CMakeFiles/mysqlserver
.
dir
/mysqlserver_depends
.c.o
Linking C static library libmysqld.a
/usr/bin/ar
: creating
/root/Me_wget/mysql-5
.6.10
/libmysqld/libmysqld
.a
[ 99%] Built target mysqlserver
Scanning dependencies of target mysql_client_test_embedded
[ 99%] Building C object libmysqld
/examples/CMakeFiles/mysql_client_test_embedded
.
dir
/__/__/tests/mysql_client_test
.c.o
Linking CXX executable mysql_client_test_embedded
[ 99%] Built target mysql_client_test_embedded
Scanning dependencies of target mysql_embedded
[ 99%] Building CXX object libmysqld
/examples/CMakeFiles/mysql_embedded
.
dir
/__/__/client/completion_hash
.cc.o
[ 99%] Building CXX object libmysqld
/examples/CMakeFiles/mysql_embedded
.
dir
/__/__/client/mysql
.cc.o
[100%] Building CXX object libmysqld
/examples/CMakeFiles/mysql_embedded
.
dir
/__/__/client/readline
.cc.o
Linking CXX executable mysql_embedded
[100%] Built target mysql_embedded
Scanning dependencies of target mysqltest_embedded
[100%] Building CXX object libmysqld
/examples/CMakeFiles/mysqltest_embedded
.
dir
/__/__/client/mysqltest
.cc.o
Linking CXX executable mysqltest_embedded
[100%] Built target mysqltest_embedded
Scanning dependencies of target my_safe_process
[100%] Building CXX object mysql-
test
/lib/My/SafeProcess/CMakeFiles/my_safe_process
.
dir
/safe_process
.cc.o
Linking CXX executable my_safe_process
[100%] Built target my_safe_process
|
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[root@Betty mysql-5.6.10]
# make install
[ 0%] Built target INFO_BIN
[ 0%] Built target INFO_SRC
[ 0%] Built target abi_check
[ 1%] Built target zlib
[ 2%] Built target yassl
[ 4%] Built target taocrypt
[ 6%] Built target edit
[ 10%] Built target
strings
[ 18%] Built target mysys
......
|
(5)设置目录权限
|
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[root@Betty mysql-5.6.10]# cd /usr/local/mysql
[root@Betty mysql]# ll
total 76
-rw-r--r-- 1 root root 17987 Jan 23 00:54 COPYING
-rw-r--r-- 1 root root 7468 Jan 23 00:55 INSTALL-BINARY
-rw-r--r-- 1 root root 2552 Jan 23 00:54 README
drwxr-xr-x 2 root root 4096 May 6 13:57 bin
drwxr-xr-x 4 root root 4096 May 6 13:57 data
drwxr-xr-x 2 root root 4096 May 6 13:58 docs
drwxr-xr-x 3 root root 4096 May 6 13:57 include
drwxr-xr-x 3 root root 4096 May 6 13:57 lib
drwxr-xr-x 4 root root 4096 May 6 13:57 man
drwxr-xr-x 10 root root 4096 May 6 13:57 mysql-test
drwxr-xr-x 2 root root 4096 May 6 13:57 scripts
drwxr-xr-x 28 root root 4096 May 6 13:57 share
drwxr-xr-x 4 root root 4096 May 6 13:57 sql-bench
drwxr-xr-x 3 root root 4096 May 6 13:57 support-files
[root@Betty mysql]# chown -R root:mysql .
[root@Betty mysql]# ll
total 76
-rw-r--r-- 1 root mysql 17987 Jan 23 00:54 COPYING
-rw-r--r-- 1 root mysql 7468 Jan 23 00:55 INSTALL-BINARY
-rw-r--r-- 1 root mysql 2552 Jan 23 00:54 README
drwxr-xr-x 2 root mysql 4096 May 6 13:57 bin
drwxr-xr-x 4 root mysql 4096 May 6 13:57 data
drwxr-xr-x 2 root mysql 4096 May 6 13:58 docs
drwxr-xr-x 3 root mysql 4096 May 6 13:57 include
drwxr-xr-x 3 root mysql 4096 May 6 13:57 lib
drwxr-xr-x 4 root mysql 4096 May 6 13:57 man
drwxr-xr-x 10 root mysql 4096 May 6 13:57 mysql-test
drwxr-xr-x 2 root mysql 4096 May 6 13:57 scripts
drwxr-xr-x 28 root mysql 4096 May 6 13:57 share
drwxr-xr-x 4 root mysql 4096 May 6 13:57 sql-bench
drwxr-xr-x 3 root mysql 4096 May 6 13:57 support-files
[root@Betty mysql]# chown -R mysql:mysql data
[root@Betty mysql]# ll
total 76
-rw-r--r-- 1 root mysql 17987 Jan 23 00:54 COPYING
-rw-r--r-- 1 root mysql 7468 Jan 23 00:55 INSTALL-BINARY
-rw-r--r-- 1 root mysql 2552 Jan 23 00:54 README
drwxr-xr-x 2 root mysql 4096 May 6 13:57 bin
drwxr-xr-x 4 mysql mysql 4096 May 6 13:57 data
drwxr-xr-x 2 root mysql 4096 May 6 13:58 docs
drwxr-xr-x 3 root mysql 4096 May 6 13:57 include
drwxr-xr-x 3 root mysql 4096 May 6 13:57 lib
drwxr-xr-x 4 root mysql 4096 May 6 13:57 man
drwxr-xr-x 10 root mysql 4096 May 6 13:57 mysql-test
drwxr-xr-x 2 root mysql 4096 May 6 13:57 scripts
drwxr-xr-x 28 root mysql 4096 May 6 13:57 share
drwxr-xr-x 4 root mysql 4096 May 6 13:57 sql-bench
drwxr-xr-x 3 root mysql 4096 May 6 13:57 support-files
[root@Betty mysql]#
|
(6)设置 mysql 配置文件
|
1
|
[root@Betty mysql]
# cp support-files/my-default.cnf /etc/my.cnf
|
(7)创建系统数据库的表
|
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[root@Betty mysql]
# scripts/mysql_install_db --user=mysql
Installing MySQL system tables...2013-05-06 15:22:18 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation
for
more
details).
2013-05-06 15:22:18 19328 [Note] InnoDB: The InnoDB memory heap is disabled
2013-05-06 15:22:18 19328 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2013-05-06 15:22:18 19328 [Note] InnoDB: Compressed tables use zlib 1.2.3
2013-05-06 15:22:18 19328 [Note] InnoDB: CPU does not support crc32 instructions
2013-05-06 15:22:18 19328 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2013-05-06 15:22:18 19328 [Note] InnoDB: Completed initialization of buffer pool
2013-05-06 15:22:18 19328 [Note] InnoDB: The first specified data
file
.
/ibdata1
did not exist: a new database to be created!
2013-05-06 15:22:18 19328 [Note] InnoDB: Setting
file
.
/ibdata1
size to 12 MB
2013-05-06 15:22:18 19328 [Note] InnoDB: Database physically writes the
file
full: wait...
2013-05-06 15:22:18 19328 [Note] InnoDB: Setting log
file
.
/ib_logfile101
size to 48 MB
2013-05-06 15:22:20 19328 [Note] InnoDB: Setting log
file
.
/ib_logfile1
size to 48 MB
2013-05-06 15:22:21 19328 [Note] InnoDB: Renaming log
file
.
/ib_logfile101
to .
/ib_logfile0
2013-05-06 15:22:21 19328 [Warning] InnoDB: New log files created, LSN=45781
2013-05-06 15:22:21 19328 [Note] InnoDB: Doublewrite buffer not found: creating new
2013-05-06 15:22:21 19328 [Note] InnoDB: Doublewrite buffer created
2013-05-06 15:22:21 19328 [Note] InnoDB: 128 rollback segment(s) are active.
2013-05-06 15:22:21 19328 [Warning] InnoDB: Creating foreign key constraint system tables.
2013-05-06 15:22:21 19328 [Note] InnoDB: Foreign key constraint system tables created
2013-05-06 15:22:21 19328 [Note] InnoDB: Creating tablespace and datafile system tables.
2013-05-06 15:22:21 19328 [Note] InnoDB: Tablespace and datafile system tables created.
2013-05-06 15:22:21 19328 [Note] InnoDB: Waiting
for
purge to start
2013-05-06 15:22:21 19328 [Note] InnoDB: 1.2.10 started; log sequence number 0
2013-05-06 15:22:21 19328 [Note] Binlog end
2013-05-06 15:22:21 19328 [Note] InnoDB: FTS optimize thread exiting.
2013-05-06 15:22:21 19328 [Note] InnoDB: Starting
shutdown
...
2013-05-06 15:22:22 19328 [Note] InnoDB: Shutdown completed; log sequence number 1625977
OK
Filling help tables...2013-05-06 15:22:22 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation
for
more
details).
2013-05-06 15:22:22 19351 [Note] InnoDB: The InnoDB memory heap is disabled
2013-05-06 15:22:22 19351 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2013-05-06 15:22:22 19351 [Note] InnoDB: Compressed tables use zlib 1.2.3
2013-05-06 15:22:22 19351 [Note] InnoDB: CPU does not support crc32 instructions
2013-05-06 15:22:22 19351 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2013-05-06 15:22:22 19351 [Note] InnoDB: Completed initialization of buffer pool
2013-05-06 15:22:22 19351 [Note] InnoDB: Highest supported
file
format
is Barracuda.
2013-05-06 15:22:22 19351 [Note] InnoDB: 128 rollback segment(s) are active.
2013-05-06 15:22:22 19351 [Note] InnoDB: Waiting
for
purge to start
2013-05-06 15:22:22 19351 [Note] InnoDB: 1.2.10 started; log sequence number 1625977
2013-05-06 15:22:23 19351 [Note] Binlog end
2013-05-06 15:22:23 19351 [Note] InnoDB: FTS optimize thread exiting.
2013-05-06 15:22:23 19351 [Note] InnoDB: Starting
shutdown
...
2013-05-06 15:22:24 19351 [Note] InnoDB: Shutdown completed; log sequence number 1625987
OK
To start mysqld at boot
time
you have to copy
support-files
/mysql
.server to the right place
for
your system
PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
To
do
so, start the server,
then
issue the following commands:
.
/bin/mysqladmin
-u root password
'new-password'
.
/bin/mysqladmin
-u root -h Betty password
'new-password'
Alternatively you can run:
.
/bin/mysql_secure_installation
which
will also give you the option of removing the
test
databases and anonymous user created by default. This is
strongly recommended
for
production servers.
See the manual
for
more
instructions.
You can start the MySQL daemon with:
cd
. ; .
/bin/mysqld_safe
&
You can
test
the MySQL daemon with mysql-
test
-run.pl
cd
mysql-
test
; perl mysql-
test
-run.pl
Please report any problems with the .
/bin/mysqlbug
script!
The latest information about MySQL is available on the web at
http:
//www
.mysql.com
Support MySQL by buying support
/licenses
at http:
//shop
.mysql.com
New default config
file
was created as .
/my
.cnf and
will be used by default by the server when you start it.
You may edit this
file
to change server settings
WARNING: Default config
file
/etc/my
.cnf exists on the system
This
file
will be
read
by default by the MySQL server
If you
do
not want to use this, either remove it, or use the
--defaults-
file
argument to mysqld_safe when starting the server
[root@Betty mysql]
#
|
(8)设置环境变量
|
1
|
[root@Betty mysql]
# vi /root/.bash_profile
|
|
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# .bash_profile
# Get the aliases and functions
if
[ -f ~/.bashrc ];
then
. ~/.bashrc
fi
# User specific environment and startup programs
#PATH=$PATH:$HOME/bin
PATH=$PATH:$HOME
/bin
:
/usr/local/mysql/bin
export
PATH
unset
USERNAME
|
|
1
|
[root@Betty mysql]
# source /root/.bash_profile
|
(9)启动 mysql 服务器
若想使用 service 命令启动 mysql 需要将 mysql 启动脚本 support-files/mysql.server 添加到 /etc/init.d 目录下，如下设置：
|
1
2
3
4
5
|
[root@Betty mysql]
# cp support-files/mysql.server /etc/init.d/mysql
[root@Betty mysql]
# ll /etc/init.d/mysql
-rwxr-xr-x 1 root root 10650 May 6 14:11
/etc/init
.d
/mysql
[root@Betty mysql]
# /etc/init.d/mysql start
Starting MySQL. [ OK ]
|
|
1
2
3
4
5
|
[root@Betty mysql]
# ps aux|grep mysql
root 4070 0.0 0.0 8732 1168 pts
/1
S 14:51 0:00
/bin/sh
/usr/local/mysql/bin/mysqld_safe
--datadir=
/usr/local/mysql/data
--pid-
file
=
/usr/local/mysql/data/Betty
.pid
mysql 4185 0.0 2.2 447880 86952 pts
/1
Sl 14:51 0:00
/usr/local/mysql/bin/mysqld
--basedir=
/usr/local/mysql
--datadir=
/usr/local/mysql/data
--plugin-
dir
=
/usr/local/mysql/lib/plugin
--user=mysql --log-error=
/usr/local/mysql/data/Betty
.err --pid-
file
=
/usr/local/mysql/data/Betty
.pid
root 4221 0.0 0.0 6064 572 pts
/1
S+ 14:54 0:00
grep
mysql
[root@Betty mysql]
#
|
(10)为 root 账号添加远程连接的能力
|
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|
[root@Betty ~]
# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection
id
is 7
Server version: 5.6.10-log Source distribution
Copyright (c) 2000, 2013, 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>
mysql> use mysql;
Reading table information
for
completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql>
mysql> desc user;
+------------------------+-----------------------------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+------------------------+-----------------------------------+------+-----+---------+-------+
| Host | char(60) | NO | PRI | | |
| User | char(16) | NO | PRI | | |
| Password | char(41) | NO | | | |
| Select_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Insert_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Update_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Delete_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Create_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Drop_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Reload_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Shutdown_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Process_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| File_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Grant_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| References_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Index_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Alter_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Show_db_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Super_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Create_tmp_table_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Lock_tables_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Execute_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Repl_slave_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Repl_client_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Create_view_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Show_view_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Create_routine_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Alter_routine_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Create_user_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Event_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Trigger_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| Create_tablespace_priv | enum(
'N'
,
'Y'
) | NO | | N | |
| ssl_type | enum(
''
,
'ANY'
,
'X509'
,
'SPECIFIED'
) | NO | | | |
| ssl_cipher | blob | NO | | NULL | |
| x509_issuer | blob | NO | | NULL | |
| x509_subject | blob | NO | | NULL | |
| max_questions | int(11) unsigned | NO | | 0 | |
| max_updates | int(11) unsigned | NO | | 0 | |
| max_connections | int(11) unsigned | NO | | 0 | |
| max_user_connections | int(11) unsigned | NO | | 0 | |
| plugin | char(64) | YES | | | |
| authentication_string | text | YES | | NULL | |
| password_expired | enum(
'N'
,
'Y'
) | NO | | N | |
+------------------------+-----------------------------------+------+-----+---------+-------+
43 rows
in
set
(0.00 sec)
mysql>
mysql>
mysql>
select
host,user,password from user;
+-----------+------+----------+
| host | user | password |
+-----------+------+----------+
| localhost | root | |
| Betty | root | |
| 127.0.0.1 | root | |
| ::1 | root | |
| localhost | | |
| Betty | | |
+-----------+------+----------+
6 rows
in
set
(0.00 sec)
mysql>
mysql>
mysql> GRANT ALL PRIVILEGES ON *.* TO root@
"%"
IDENTIFIED BY
"root"
;
Query OK, 0 rows affected (0.00 sec)
mysql>
select
host,user,password from user;
+-----------+------+-------------------------------------------+
| host | user | password |
+-----------+------+-------------------------------------------+
| localhost | root | |
| Betty | root | |
| 127.0.0.1 | root | |
| ::1 | root | |
| localhost | | |
| Betty | | |
| % | root | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B |
+-----------+------+-------------------------------------------+
7 rows
in
set
(0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql>
exit
Bye
[root@Betty ~]
#
|
(11)删除本机匿名连接的空密码帐号
|
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|
[root@Betty ~]
# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection
id
is 7
Server version: 5.6.10-log Source distribution
Copyright (c) 2000, 2013, 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>
mysql> use mysql;
Reading table information
for
completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql>
mysql>
select
Host,User,Password from user;
+-----------+------+-------------------------------------------+
| Host | User | Password |
+-----------+------+-------------------------------------------+
| localhost | root | |
| Betty | root | |
| 127.0.0.1 | root | |
| ::1 | root | |
| localhost | | |
| Betty | | |
| % | root | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B |
+-----------+------+-------------------------------------------+
7 rows
in
set
(0.00 sec)
mysql> delete from user where password=
""
;
Query OK, 6 rows affected (0.00 sec)
mysql>
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql>
select
Host,User,Password from user;
+------+------+-------------------------------------------+
| Host | User | Password |
+------+------+-------------------------------------------+
| % | root | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B |
+------+------+-------------------------------------------+
1 row
in
set
(0.00 sec)
mysql>
mysql>
|
