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What does this command mean on Centos 7 "rpm -e --nodeps --justdb"?

Could anyone please tell me what this command means on Centos 7?
rpm -e --nodeps --justdb

Also I have by accident installed two versions of MySQL on my server:
MySQL55-devel-5.5.42-4.cp1148.x86_64
and
mysql-community-client-5.6.25-2.el7.x86_64
via two commands:

sudo rpm -Uvh http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
sudo yum -y install mysql-community-server

and separately

sudo yum install php-mysql
sudo yum --enablerepo=remi,remi-php56 install php-pecl-apcu php-cli php-pdo php-mysqlnd php-pgsql php-pecl-mongo php-sqlite php-pecl-memcache php-pecl-memcached php-gd php-mbstring php-xml

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I was following some installation tutorial and by accident installed both. How do I get rid of one of them and which would you recommend me to remove as I would prefer the best of the two.

thanks in advance

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Zephyr ICT

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badwolfff

ASKER

Thanks. No, rightly I don't need the development release. In that case the right installation command would have been:
sudo rpm -Uvh http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
sudo yum -y install mysql-community-server

Right?

Also how do I find and uninstall the other one?

Just out of curiosity. That non-development release ouf of the two here, which version it is?
I need 5.6.

Zephyr ICT

Does your system already have mysql installed?

Because using rpm -Uvh will upgrade a package, not "install it"

If you want to install use "rpm -ivh"

Try finding the package with "rpm -qi <name-of-package>"

For example: rpm -qi mysql

See what is listed.

What does this command mean on Centos 7 &quot;rpm -e --nodeps --justdb&quot;?

What does this command mean on Centos 7 "rpm -e --nodeps --justdb"?