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2025-01-18 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Database >
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This article introduces the relevant knowledge of "summary of common commands in Mysql database". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!
Start the Mysql database
C: "cdMysql5.0bin
C:Mysql5.0bin "mysqld-install installs Mysql service
C:Mysql5.0bin "netstartmysql starts the Mysql service
The requested service has been started.
Connect mysql
Users need to provide the user name and password of Mysql to connect to the server, and if the server is not local, a hostname or IP is required to specify the location of the server.
C:Mysql5.0bin "mysql-hlocalhost-uroot-p
EnterpassWord:****
WelcometotheMySQLmonitor.Commandsendwith;org.
YourMySQLconnectionidis6toserverversion:5.0.18-nt
Type'help;'or'h'forhelp.Type'c'toclearthebuffer.
Mysql "
Use a simple query statement
Mysql "selectversion (), current_date
Mysql "selectversion (); selectnow ()
Create or delete a database
Mysql "createdatabasemydb
Mysql "dropdatabasemydb
Commands for open databases
Mysql "usemysql
Databasechanged
Command to view the database
Mysql "showdatabases
View the detailed structure of the data table
Mysql "descfunc
Create a new database
Mysql "createdatabaseschool
QueryOK,1rowaffected (0.00sec)
New table
Mysql "createtableuser01 (
-"idvarchar (20) NOTNULL
-"userNamevarchar (10) NOTNULL
-"ageint (11) default'0'
-"sexchar (2) NOTNULLdefault'm'
-"PRIMARYKEY (id)
-") TYPE=InnoDB
QueryOK,0rowsaffected,1warning (0.02sec) mysql "descstudent
What are the common commands in Mysql database
Insert and delete data from a table
Createtablestudent (stuNamevarchar (20), agevarchar (20), idvarchar (20), set0char (1))
insert
Mysql "insertintostudent (id,stuName) values ('1century recorder tomcat')
QueryOK,1rowaffected (0.00sec)
Delete
Mysql "deletefromstudentwhereid='1'
QueryOK,1rowaffected (0.01sec)
Delete all data in the table
Mysql "truncatetablestudent
QueryOK,1rowaffected (0.01sec)
Delete tabl
Mysql "createtabletemp (tvarchar (1))
QueryOK,0rowsaffected (0.00sec)
Mysql "droptabletemp
QueryOK,0rowsaffected (0.00sec)
Create a new user and grant permissions
Mysql "grantallprivilegeson*.*todbuser@localhostidentifiedby'1234'
Withgrantoption
Change Mysql user password
C:Mysql5.0bin "mysqladmin-uroot-ppassword1234
Enterpassword:****
Back up databases and tables
We use the mysqldump command to back up the database
C:mysqlbin "mysqldump-uroot-p3306mysql" d:backup.sql
Executing this statement will back up the mydb to the backup.sql file on disk D.
Back up multiple database tables
C:mysqlbin "mysqldump-uroot-p3306schooluser01user" d:backup.sql
This sentence means to back up the contents and definitions of the user01 table and user table in the school library to the D disk backup.sql file.
Back up all databases
C:myqlbin "mysqldump-uroot-p3306-all-database" d:backup.sql
Restore Mysql database
C:mysqlbinmysql-uroot-p3306school
Restore one of the tables
Mysql "sourced:books.sql
ERROR:
Unknowncommand'b' .
QueryOK,0rowsaffected (0.00sec)
QueryOK,1rowaffected (0.00sec)
Exit Mysql connection
Mysql "quit (exit)
Turn off the mysql service
C:mysqlbin "netmysql
This is the end of the summary of common commands in Mysql database. Thank you for your reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!
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