CMD window under Windows connects to MySQL and operates the table

1、
mysql After installation , Command window connection needs to be configured path environment variable , The value is mysql Installed directory /bin. Pictured ,Windows + r Pop up the command window cmd, enter

2、
stay DOS Command window input mysql -hlocalhost -uroot -p enter Get into mysql database , among -h Represents the server name ,localhost Means local ;-u User name for database ,root yes mysql Default user name ;-p Is password , If the password is set , But directly in -p After the link input , Such as ：-p123456, The user didn't set the password , Show Enter password when , Just go back .
Be careful , If your mysql Not installed in C Under the plate , You need to use DOS Order to enter mysql Under the installation directory of bin Directory . Such as ： Installed in e disc , Input e: Get into e disc , In the input cd e:\Tools\MySQL5.5.25\bin Enter into mysql Of bin You can enter it in the directory mysql -hlocalhost -uroot -p

3、
View all databases , Input “show databases:”, Be sure to add a semicolon in English , because mysql Middle is marked with a semicolon . If it is not added, an error may be reported, or nothing may be displayed on the interface , here , We need to end this statement , Press down Ctrl+c Just re-enter ,

4、
Query all the tables in the database . You need to specify the database first ：”use Library name ;” And then through “show tables” Check it out.

5、、
Query all fields of the specified table ：show columns from Database name . Table name
Create database ：create database Database name ;

6、 Create table ：CREATE TABLE The name of the table
(
Column name 1 data type ,
Column name 2 data type ,
Column name 3 data type ,
….
)
Such as ： Create a student surface ：
create table student
(
s_id int,
s_name varchar(255),
s_age varchar(255)
)

7、 I'm lazy , But the back is gone