創(chuàng)建數(shù)據(jù)庫
最簡單的方式：
CREATE DATABASE my_db;
或者是：
CREATE DATABASE IF NOT EXISTS my_db;
創(chuàng)建utf8編碼的數(shù)據(jù)庫：
CREATE DATABASE IF NOT EXISTS my_db default character set utf8 COLLATE utf8_general_ci;
那么在這個數(shù)據(jù)庫下創(chuàng)建的所有數(shù)據(jù)表的默認(rèn)字符集都會是utf8了，注意后面這句話 "COLLATE utf8_general_ci",大致意思是在排序時根據(jù)utf8變碼格式來排序。
查看數(shù)據(jù)庫列表：
show databases;
使用數(shù)據(jù)庫：
use my_db;
查看數(shù)據(jù)庫默認(rèn)編碼：
show variables like 'character_set_%'
+--------------------------+-------------------------------------------------------+
| Variable_name | Value |
+--------------------------+-------------------------------------------------------+
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | latin1 |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/local/mysql-5.5.28-linux2.6-i686/share/charsets/ |
+--------------------------+-------------------------------------------------------+
可以看到character_set_database是lantin1.
修改數(shù)據(jù)庫編碼：
alter database my_db character set latin1;
刪除數(shù)據(jù)庫：
drop database my_db;
或者是：
drop database IF EXISTS my_db;
