c++ mysql library ubuntu 20.04 code example
Example 1: how to install mysql in ubuntu 20.04
## To install mysql in Ubuntu ##
sudo apt install mysql-server
## For configuration
sudo mysql_secure_installation
# For password type YES or y ... enter you password
# For removing user NO or n
# For disallow login NO or n
# For remove database NO or n
# Reload table YES or y
## DONE configurations ...
## Start mysql with below command...
sudo mysql -u root -p
# Enter password which you add in configurations
# Now you are all done...
Example 2: how to install mysql in ubuntu 20.04
## ADD user in mysql && have problem with root user ##
# First Login mysql shell..
sudo mysql -u root -p
## Also check if you are unable to login in mysql without sudo...
## Creating new user and giving permissions...
# Goto login shell of mysql... and type below commands...
#1 show databases;
#2 use mysql;
#3 select user, host, plugin from mysql.user;
#4 create user 'your_user_name'@'localhost' identified by 'password';
#5 grant all privileges on *.* to 'your_user_name'@'localhost';
#6 update user set plugin="caching_sha2_password" where User="your_user_name";
# .... Here caching_sha2_password you can see yours in #3 check
# your table and see column (plugin) don't use root plugin...
#7 flush privileges;
#8 EXIT
#### DONE Now you created your user also you can user without sudo...
mysql -u your_user_name -p
## For password check your step #4 and enter same password...
## Enjoy ALL DONE....
## HAVE A NICE DAY!