how to establish remote MySQL connection from Rapidminer? user not known? - mysql

I want to connect to a mysql database from Rapidminer, I am not sure, but to have acces to databases, I have to execute a GRANT ALL string on my mySQL machine first, is that right?
it goes like:
GRANT ALL ON . to user#IPADRESS IDENTIFIED BY 'password';
where IPADRESS should be ipadress of my remote computer, and password is the password of the root login of my mySQL Workbench, is that correct?
but what is the user? I didn't create a user before, and I am trying from rapidminer...

Can you specify a little your question, because I am not sure, if I understand correctly you question.
But: every MySQL connection should have following things:
database name
host
username
password
table name
An user you can create from MySQL workbench, not from RapidMiner. I think, the same database can have multiple users with respective passwords.

Related

MySQL - Restrict access to a database

Is there a way to restrict users from accessing a particular database/schema within MySQL?
I want to create a database/schema that only I can access.
I also want to change the password of the "mysql" user but I do not see this user in the mysql.user table even though I was able to use this user to login to mysql.
I tried changing the password of the user by executing the statement -
mysqladmin --user=mysql --password=oldpassword password "newpassword".
But now I am not able to login this user altogether. I've tried both the old and the new passwords.
I am wondering if my changing this password can impact any mysql service running on the system.
For restricting table and schema you can use the GRANT, you can set permission for each user or group on a particular tables for more details :
Tutorial on Grant for mysql
For your access the answer is already on stackoverflow :How do I retrieve my MySQL username and password?
Hope that can help you

MySQL revoke permissions for external connections

I need to give a remote user access to a MySQL database. I also need to limit the permissions they have to the MySQL database tables. The current database contains approx. 50+ tables so rather than revoke permissions table by table, I'm trying to give the user access with no privileges and then add those that are needed. What I've done appears to work when:
I'm logged in as root (via SSH)
I login using "mysql -u username -p" - enter my password for the newly created user.
This users account honors all the privileges I've set up. However, when this user tried to connect via their desktop client - they can connect but can not view the database. When using "use databasename" they get this error:
Error Code: 1044. Access denied for user 'username'#'%' to database 'database_name'
Not sure if this helps but I'm using Media Temple DV w/ Plesk. I've first added the user. Then I SSH in and revoked ALL privileges. Then I added the privileges for the user and did command "flush privileges". Nothing is working. As I said, if I'm accessing via the command line (after SSHing in as root) the permissions are honored and I can access the database - just not remotely.
Any help would be greatly appreciated.
May be network that is allowed to connect is localhost, but not users network IP.
And check max connections amount.
If you're logged in as root via SSH and MySQL database is on the same machine, then i guess that if you run:
mysql -u username -p
you try to connect to MySQL as 'username'#'localhost' user.
If you want to connect to MySQL database from outside of this server, you need to:
create user like 'username'#'%' which allow to connect to MySQL using 'username' from anywhere ('%')
allow mysql server to connect from outside by setting bind-address more details here

Create Mysql User that Can be Connect from any host

I want to create mysql user that can be connect from any host, i have followed instruction from MYSQL documentation from this link
Adding User Accounts
MYSQL documentation said i should create two user with host localhost and %. So i create two user like documentation said. Give same grant privileges to both. And then execute flush privileges. All user work on localhost, but when i try to connect from other host, it always said Can't connect on MySQL server on ....
Any opinion ?

MySQL workbench - Can't connect to a specific database

I'm facing a strange issue here and it seems impossible to me to connect to my MySQL database.
I have used the workbench few times ago, but it was an older version. The problem with the new one (6CE) is that I can't connect directly to a database - it only allows me to create a connection to the server as a root user and I don't remember this password.
Is there a way to make a connection directly to the dataase itself as in the previous versions, or now only the root is an option. If yes I will have to reset my password.
Make sure that your credentials are still valid, and has proper privileges. If you can log into your mysql-server from terminal (with root account or the user you are trying with), then run "SHOW GRANTS" and see the privileges;
To connect to mysql database you need to have your user account's hostname specific to your IP or wildcard (%).
Similarly you can create a new mysql user with the following command from your server, and then try with this new user.
GRANT ALL ON <db>.* TO 'user'#'<ip or %>' IDENTIFIED BY '<password>' ;
FLUSH PRIVILEGES;
Be careful with the user created above. It will have ALL privilege with the specific database. And using % is actually a bad idea, so user you home machines IP (from where you are trying to connect with Workbench)

delete MySQL entire database. Database not showing in MySQL Databases

Every time I create a database using a custom joomla template quick install the database is created but does not show up in MySQL Database management despite the fact that it most definitely does exist and MySQL database management knows it does because it wont let me create a database with that name due to error "Database already exists".
I want to delete joomlasall database.
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If you can not see database but you are sure that it exists, this is definitely permissions issue.
Do
SHOW GRANTS
More info here
You will see that you does not hold global SELECT privilege.
You need to explicitly GRANT permissions with similar command like:
GRANT ALL PRIVILEGES ON DBNAME.* TO 'username'#'localhost';
Instead of ALL you can specify SELECT, INSERT, UPDATE, DELETE , EXECUTE, etc... check this
replace DBNAME with your DB name, username with user for whom you want to grant access and localhost with hostname if DB is used remotly.
To do this, you need GRANT privilege or to be root user.
use same mysql user credentials for Joomla DB connectivity also the one you are using in phpmyadmin.