MySQL summary

1、 Sign in ：mysql -h  Host name  -P  Port number  -u  user name  -p password 

2、 Leave ：exit perhaps quit

3、 Create database ：create database  Database name ;

4、 Using a database ：use  Database name ;

5、show tables;  # It is required to have use sentence 

   show tables from  Database name ;

6、 Create table ：create table  The name of the table (
	 Field name    data type ,
	 Field name   data type 
);

7、 see ：select * from  Database table name ;

8、 add to ：insert into  The name of the table  values( value , list );

9、 View the table creation information ： show create table  The name of the table \G

10、 Delete table : drop table  The name of the table ;

11、 Delete database ：drop database  Database name ;

12、 Check the code command ：
show variables like 'character_%';
show variables like 'collation_%';

13、# modify 'root'@'localhost' User's password rules and passwords 
USE mysql; 
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'abc123'; 
FLUSH PRIVILEGES;

14、 modify the database / Table character code is UTF8
alter database 0728db charset utf8
alter table student charset utf8;

15、 modify my.ini
[mysql]  # In about 63 Row or so , Add under 
... 
default-character-set=utf8  # Default character set 

[mysqld]  #  In about 76 Row or so , Add under 
...
character-set-server=utf8
collation-server=utf8_general_ci

16、 Import sql file ：
source d:\mysqldb.sql