1. Mysql Commands Cheat Sheet Pdf
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  3. Mysql Command Line Cheat Sheet

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MySQL String Functions; MySQL Mathematical Functions; MySQL Command-Line. Here are the most commonly used SQL commands and the most commonly used options for each. There are many more commands and options than listed here. In other words, the syntax as I have listed them are far from complete. See the links at the bottom for more complete. (My)SQL Cheat Sheet Here are the most commonly used SQL commands and the most commonly used options for each. There are many more commands and options than listed here. In other words, the syntaxes as I have listed them are far from complete. See the links at the bottom for more complete syntaxes and more commands.

A cheat sheet for MySQL with essential commands. Work with tables, columns, data types, indexes, functions, and more. Free to download as PDF and PNG. MySQL prior to version 8.0 doesn't support the WITH clause. WITH previ ous Que ryA lias AS ( SEL ECT column1, COU NT( col umn 2) AS renam edO utp utC olumn FROM table1 GROUP BY column1) SEL ECT table2.co lumn1. SQL commands Cheat Sheet by sjm - Cheatography.com Created Date. SQL commands Cheat Sheet. MySQL prior to version 8.0 doesn't support the WITH clause. WITH previ ous Que ryA lias AS ( SEL ECT column1, COU NT( col umn 2) AS.

  • Log in as root (password is prompted):

  • Log in as root with password sekrit (REMARK: no space allowed between -p and the password):

  • Log in as user on another host, and use database mydb (password is prompted):

  • Setting the root password (after clean install):

Queries

First log in as root and use the mysql database: mysql -uroot -p mysql (password is prompted). Don’t forget that every query must be terminated with ;

In the overview below, CAPITALIZED words are part of the SQL syntax, lowercase words are names of tables, columns, etc.

Mysql tutorial for beginners pdf
TaskQuery
List databasesSHOW DATABASES;
Change active databaseUSE dbname;
Change to the “system” databaseUSE mysql;
Show tables in active databaseSHOW TABLES;
Show table propertiesDESCRIBE tablename;
List all usersSELECT user,host,password FROM mysql.user;
List databasesSELECT host,db,user FROM mysql.db;
Quitexit or Ctrl-D

Secure installation

Most HOWTOs suggest to run the mysql_secure_installation script after installing MariaDB/MySQL. Since that is an interactive script that constantly asks for user input, it is not suitable for automated setups. There are quick-and-dirty solutions by using either expect or a here document, but these feel kludgy to me.

What happens in the script is basically setting the database root password and removing a test database and users.

Setting the root password

The following snippet will set the database root password if it wasn’t set before, and will do nothing if it was. The command mysqladmin -u root status will succeed if the password was not set, and in that case the password will be set to the specified value.

This code snippet is idempotent, i.e. you can run it several times with the same end result and without it failing if a root password was set previously.

Removing test database and users

After setting the root password with the previous code, the following snippet will remove the test database and anonymous users. The database root user is set to only be allowed to log in from localhost.

Mysql Commands Cheat Sheet Pdf

Create a new database and user

Create a database and a user with all privileges for that database (warning: user/db are first removed if they exist):

Backup/restore

Let’s say you have a Drupal site that you want to back up/restore. The database is drupal.

  • Backup: mysqldump -u root -p drupal > drupal_backup.sql
  • Restore:
    • First, ensure that the drupal database exists (see above)
    • mysql -u root -p drupal < drupal_backup.sql

Here I show how to use mysql from command line.

To login into mysql run –

To create database on the sql server run –

List all databases on the sql server run –

Switch to any database, run –

To see all the tables in the db run –

To see database’s field formats run –

To delete a db. run –

To delete a table. run –

Show all data in a table.

Returns the columns and column information pertaining to the designated table.

you can run any valid SQL command in this mysql command line.

Creating a new user. Login as root. Switch to the MySQL db. Make the user. Update privileges.

Change a users password from MySQL prompt. Login as root. Set the password. Update privs.

Recover a MySQL root password. Stop the MySQL server process. Start again with no grant tables. Login to MySQL as root. Set new password. Exit MySQL and restart MySQL server.

Set a root password if there is on root password.

Update a root password.

Allow the user “salayhin” to connect to the server from localhost using the password “passwd”. Login as root. Switch to the MySQL db. Give privs. Update privs.

Give user privilages for a db. Login as root. Switch to the MySQL db. Grant privs. Update privs.

Update database permissions/privilages.

Dump all databases for backup. Backup file is sql commands to recreate all db’s.

Dump one database for backup.

Cheat Sheet Terraria

Dump a table from a database.

Restore database (or database table) from backup.

Mysql Command Line Cheat Sheet

As I say early all valid SQL command will execute on mysql command line utility.