How To Check mysql is installed in linux machine or not? - mysql

In my case I am trying
mysql --version
so it is showing
mysql Ver 15.1 Distrib 5.5.35-MariaDB, for Linux (x86_64) using readline 5.1
but when I am giving
service mysql status
It showing path is not available,please help to find out mysql server is installed or not in particular linux machine.

You need to check existense of binaries:
mysql (which mysql) if you need to check client existence
mysqld (which mysqld_safe or which mysqld) if you need to check server existence

On debian it could be done using dpkg:
dpkg -s mysql-server
returns
Package: mysql-server
Status: install ok installed
[...]
or
dpkg-query: package 'mysql-server' is not installed and no information is available
same for mysql-client

Try this simple step if you are using Ubantu OS.
Go to search>> Ubantu software center(type in search)>>Installed(click)>>Developer Tools(click)(then it will show that mysql software is installed or not)

Related

Install MySQL v8 in Google Colab. Service is not starting. Not recognised

I have been successfully installing and using MySQL V5.7 in Google Colab (with Ubuntu 18.04) for quite some time. However trying to install MySQL V8 has repeated failed. I have used the following sequence of commands ..
!apt update
!apt upgrade
#!wget -c https://dev.mysql.com/get/mysql-apt-config_0.8.11-1_all.deb
!wget https://dev.mysql.com/get/mysql-apt-config_0.8.22-1_all.deb
!dpkg -i mysql-apt-config_0.8.*
!sudo apt update
!sudo apt install mysql-server
During the install, I provide the root password and have used both the strong password option as well as the legacy authentication. Everything goes fine upto this point and even the following command
!mysqld --version
returns the correct version
/usr/sbin/mysqld Ver 8.0.28 for Linux on x86_64 (MySQL Community Server - GPL)
After this things go wrong! The MySQL service should have started but it hasn't
!mysql -uroot -p
Enter password:
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
and when I try to start it, it is not recognised ( neither mysql nor mysqld)
!sudo service mysqld start
mysqld: unrecognized service
in fact, even this fails
!systemctl status mysql
System has not been booted with systemd as init system (PID 1). Can't operate.
What am I doing wrong? or what else should I do? or is it that for some reason, Google Colab with Ubuntu 18.04 does not support MySQL V8
No action required ... just this will do
!apt update > null
!apt -y install mysql-server -V
!/etc/init.d/mysql restart
then check
!mysql --version
mysql Ver 8.0.31-0ubuntu0.20.04.2 for Linux on x86_64 ((Ubuntu))
earlier this used to show Ver 5.7!
Now, with this we can now use CTE, recursion and Windows functions of v8
Check with sudo service mysql start or sudo start mysql once.
Another thing is that google colab instance might not use the system init system at all. That's why it's resulting in System has not been booted with systemd as init system. Check with the sys-v init system once. Its commands look like service service_name start. The same thing happens when trying to start services in WSL.

How to install MySql 8 in AWS Linux 1?

Currently, MySQL 5.5 is installed in Amazon Linux AMI 2018.03. Now I want to upgrade MySQL to the latest version 8.0 and remove old MySQL 5.5 so that I can execute SQL scripts which runs successfully on MySQL 8.
How can we upgrade to MySql 8?
Here is OS details:
$ cat /etc/os-release
NAME="Amazon Linux AMI"
VERSION="2018.03"
ID="amzn"
ID_LIKE="rhel fedora"
VERSION_ID="2018.03"
PRETTY_NAME="Amazon Linux AMI 2018.03"
ANSI_COLOR="0;33"
CPE_NAME="cpe:/o:amazon:linux:2018.03:ga"
HOME_URL="http://aws.amazon.com/amazon-linux-ami/"
which rhel fedora version is that? So that as per OS version we can download specific MySQL rpm from MySQL server.
I would go with something like that:
yum install https://dev.mysql.com/get/mysql80-community-release-el6-3.noarch.rpm
yum update
that will install new source for mysql repo, and then you can go with:
yum install mysql-community-server

Problems installing MySQL 5.7 properly on fresh CentOS 7 install

I admit that I am new to back-end work in general and I seem to be stuck (for several hours) following through with completing the setting up process for Magento 2.3
I was following https://devdocs.magento.com/guides/v2.3/install-gde/prereq/mysql.html for my commands but to no success.
I managed to get the following installed:
Cent OS 7 (x86_64)
Apache 2.4.6
PHP 7.2.14 (all the extensions installed passed the Setup Wizard readiness check)
I used these commands to install MySQL 5.7 Community Release: (from the documentation)
wget http://dev.mysql.com/get/mysql57-community-release-el7-7.noarch.rpm
yum -y install mysql mysql-server
yum -y install mysql-community-server
To check if my installation went well, when I run:
mysql --version
I received an error message saying:
-bash: /usr/bin/mysql: No such file or directory
I know that there is something I definitely am missing out completely. When I try to start the MySQL service using the command:
systemctl start mysqld
I get the resulting error message:
Failed to start mysqld.service: Unit not found.
Any suggestions will much be appreciated. Thank you in advance.
Maybe it installed it as mariadb?
systemctl start mariadb
After removing MySQL 5.7 community release from my Cent OS, I decided to install MariaDB.
Inside the directory /etc/yum.repos.d/ I've created a file called MariaDB.repo and added this into the file:
# MariaDB 10.3 CentOS repository list - created 2019-01-25 05:36 UTC
# http://downloads.mariadb.org/mariadb/repositories/
[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.3/centos7-amd64
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1
I then performed the command in my terminal window:
sudo yum install MariaDB-server MariaDB-client
Because of this, mysql --version and systemctl start mysql works like a charm. Thanks #greenberet123 and #danblack for the suggestion.

How to install MySQL 5.7.x on Mac OS Sierra

I need to obtain the functionality of MySQL 5.7. I had zend server 9 (first 9 version). After reinstallation of zend server (it doesn't supports upgrade).
- Result: MySQL 5.5 !
May there exist solutions for:
Upgrade mysql inside zend framework?
Install other apache2.4+mysql5.7+php7 developer server?
some other solution.
Requirements:
PHP7.0.8 or later
MySQL 5.7
Apache 2.4 or later
Uninstall your existing version of mysql and install mysql 5.7
mysql.server stop # kill the running process
brew uninstall mysql # uninstall mysql
brew update # update brew
brew install mysql#5.7 # install mysql 5.7
Now you can start mysql.server with /usr/local/opt/mysql#5.7/bin/mysql.server start
Modify your PATH variable in ~/.bash_profile so you can start it with just mysql.server start
# ~/.bash_profile
export PATH="/usr/local/opt/mysql#5.7/bin:$PATH"
mysql.com offers a automatic dmg installer, which I find I have the most success with. It typically installs in /usr/local/mysql so you may want to try deleting any other installations you have on your system first.
You can download it here:
https://dev.mysql.com/downloads/mysql/
As for apache and php I find that I typically stick with the ones preloaded into os x, you can There are a number of articles out there on how to active these, but I believe its just a matter of uncommenting the php LoadModule line in /etc/apache2/httpd.conf
#LoadModule php5_module libexec/apache2/libphp5.so
and then starting apache in terminal with the apachectl command.
I installed https://dbngin.com/
Then after that i went to /usr/local
Then I saw a folder name for each of the MySQL versions I had installed using dbngin
Then after that I added it to path. Then that was it.
echo 'export PATH="/usr/local/path-to-mysql/bin:$PATH"' >> ~/.zshrc
You know, after MySQL is uninstalled and reinstalled via homebrew, it will prompt: 1. Upgrade to macOS 10.13; 2. Upgrade to Xcode 9.2.
If you don't want to upgrade the system or Xcode version, then request the MySQL official website to download:
https://downloads.mysql.com/archives/community/
The MySQL version suitable for macOS 10.12 ranges from 5.7.17 to 5.7.23.

How do I install command line MySQL client on mac?

I want to install the MySQL client for the command line, not a GUI. I have searched over the web but only found instructions on installing the MySQL server.
install MySQLWorkbench, then
export PATH=$PATH:/Applications/MySQLWorkbench.app/Contents/MacOS
This strictly installs a command line client, without the other overhead:
Install Homebrew (if you don't have it):
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Then, install mysql-client:
brew install mysql-client
Then, add the mysql-client binary directory to your PATH:
echo 'export PATH="/usr/local/opt/mysql-client/bin:$PATH"' >> ~/.bash_profile
Finally, reload your bash profile:
source ~/.bash_profile
Then you should be able to run mysql in a terminal, if not try opening a new terminal
If you have already installed MySQL from the disk image (dmg) from http://dev.mysql.com/downloads/), open a terminal, run:
echo 'export PATH=/usr/local/mysql/bin:$PATH' >> ~/.bash_profile
then, reload .bash_profile by running following command:
. ~/.bash_profile
You can now use mysql to connect to any mysql server:
mysql -h xxx.xxx.xxx.xxx -u username -p
Credit & Reference: http://www.gigoblog.com/2011/03/13/add-mysql-to-terminal-shell-in-mac-os-x/
Best option is:
brew install mysql
Mysql has a client-only set of utilities:
Mysql client shell
https://dev.mysql.com/downloads/shell/
Other command line utilities
https://dev.mysql.com/downloads/utilities/
Mac OSX version available.
There is now a mysql-client formula.
brew install mysql-client
For installing mysql-shell with homebrew, run
brew cask install mysql-shell
you can then launch the mysql shell with
mysqlsh
if you want to enter SQL mode directly, run
mysqlsh --sql
Open the "MySQL Workbench" DMG file and
# Adjust the path to the version of MySQL Workbench you downloaded
cp "/Volumes/MySQL Workbench 6.3.9.CE/MySQLWorkbench.app/Contents/MacOS/mysql" /usr/local/bin
# Make sure it's executable
chmod +x /usr/local/bin/mysql
Eject the DMG disk
Installation command from brew:
$ brew cask install mysql-shell
Look at what you can do:
$ mysqlsh --help
Run query from mysqlsh client installed:
$ mysqlsh --host=192.x.x.x --port=3306 --user=user --password=xxxxx
MySQL Shell 8.0.18
Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its affiliates.
Other names may be trademarks of their respective owners.
Type '\help' or '\?' for help; '\quit' to exit.
WARNING: Using a password on the command line interface can be insecure.
Creating a session to 'user#192.x.x.x:3306'
Fetching schema names for autocompletion... Press ^C to stop.
Your MySQL connection id is 16
Server version: 8.0.18 MySQL Community Server - GPL
No default schema selected;
type \use <schema> to set one.
MySQL 192.x.x.x:3306 ssl JS >
MySQL 192.x.x.x:3306 ssl JS > `\use rafdb`
Default schema set to `rafdb`.
If you installed from the DMG on a mac, it created a mysql client but did not put it in your user path.
Add this to your .bash_profile:
export PATH="/usr/local/mysql/bin:$PATH
This will let you run mysql from anywhere as you.
As stated by the earlier answer you can get both mysql server and client libs by running
brew install mysql.
There is also client only installation. To install only client libraries run
brew install mysql-connector-c
In order to run these commands, you need homebrew package manager in your mac. You can install it by running
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Using MacPorts you can install the client with:
sudo port install mysql57
You also need to select the installed version as your mysql
sudo port select mysql mysql57
The server is only installed if you append -server to the package name (e.g. mysql57-server)
The easiest way would be to install mysql server or workbench, copy the mysql client somewhere, update your path settings and then delete whatever you installed to get the executable in the first place.
The mysql client is available in macOS ports. If you don't have this excellent third party package manager already installed, it is available from here: https://www.macports.org/
Once you have installed macports, open a terminal and make sure everything is up to date:
sudo port selfupdate
There are multiple different versions of MySQL and mariadb (community fork of MySQL) available in the ports repos. List available versions using the following command:
port search 'mariadb*'
I recommend choosing mariadb over mysql as it is, mostly, a drop in replacement (https://mariadb.com/kb/en/mariadb-vs-mysql-compatibility/) and has excellent community support.
If applicable, choose which version of mariadb you want (a list of versions of mariadb is available here: https://downloads.mariadb.org/mariadb/+releases/). If you're not bothered, install the default version:
sudo port install mariadb
Mariadb (including the mysql-compatible command line client) is now available on your system. On my system, the CLI client resides in the following location:
$ /opt/local/bin/mysql --version
/opt/local/bin/mysql Ver 15.1 Distrib 5.5.68-MariaDB, for osx10.15 (x86_64) using readline 5.1
It's obviously a bit inconvenient to type out the full path, /opt/local/bin/mysql each time you want to use the client. Ports has already thought of this problem. To view available versions of mysql on your system, run:
$ port select mysql
Available versions for mysql:
mariadb (active)
none
Choose one from the list. For example, to use mariadb as the default mysql client:
sudo port select mysql mariadb
Now open a fresh terminal window and you should be able to start the mariadb mysql CLI client:
mysql -h <hostname> -u <username> -p
if you need a lighter solution i recommend mysql-shell, install using the command below.
brew cask install mysql-shell
To start after installation type mysqlsh.