1.下載解壓包
2.配置my.ini
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.6/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.
[client]
default-character-set=utf8
[mysql]
default-character-set=utf8
[mysqld]
character-set-server=utf8
# 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 = E:\Program Files\mysql-5.7.22-winx64
datadir = E:\Program Files\mysql-5.7.22-winx64\data
# port = .....
# 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
3.安裝
mysqld -install
mysql -remove
mysql -ininstal
net start mysql 啟動服務
net stop mysql
4.登錄
登錄
mysql -u user -p
修改密碼
這里如果是面密碼登錄鳄厌，刷新權限
flush privileges
set passwd for user@localhost=password("123456");
5.mysql 的使用
create databses test_db;
show databses LIKE 'test_db';
創(chuàng)建表:
create table test_db
(
id int(11),
name varchar(25)
);
顯示表
desc test_db;
show create table test_db\G;
6.修改表
首先輸入開始 然后附加參數
alter table test_db
ADD COLUMN col1 INT FIRST;
ADD COLUMN col2 INT AFTER name;
MODIFY name VARCHAR(30);
DROP col2;
CHANGE col1 col3 CHAR(30);
RENAME TO tb_emp2;
drop table test_db ;
注意配置
mysqld -install
mysqld -inittial *******************************
net start mysql
net stop mysql
mysql -u root -p
