1 Mysql相關(guān)
1 .1 啟動(dòng)/停止命令
win: net start/stop mysql
linux: service mysqld start/stop
1.2 用戶
創(chuàng)建用戶：create user szh@localhost identified by "123456";
授權(quán)：grant all on . to 'szh'@'localhost' identified by '123456'; 刷新：flush privileges;
設(shè)置密碼：set password for szh@localhost=password("123456");
解除授權(quán)：revoke all on . from local@localhost;
更多請(qǐng)查看這里
1.3 字符集
1）查看字符集：show variables like '%char%';
2）修改字符集（配置文件）
復(fù)制my-default.ini為my.ini，按照下面的進(jìn)行修改和補(bǔ)全乍丈，保存后進(jìn)行重啟
# 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]
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 = D:\SoftWare\JAVA\JavaWeb\mysql-5.7.13-win32\mysql-5.7.13-win32
# datadir = D:\SoftWare\JAVA\JavaWeb\mysql-5.7.13-win32\mysql-5.7.13-win32\data
# port = .....
# server_id = .....
[client]
loose-default-character-set=utf8
default-character-set=utf8
[mysql]
default-character-set=utf8
# 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）修改數(shù)據(jù)庫(kù)的字符集
alter database db_name character set utf8;
4）修改表格的字符集
alter table tb_name character set utf8 collate utf_general_ci;
2 SQL相關(guān)
2.1 查詢
查詢
2.2 過(guò)濾：where后面的條件
過(guò)濾
待續(xù)...
