BlackWeb includes several SQL engines, but when they are pre-installed, the default password is not configured and the access to its root user is denied.
This page will help you in setting up a new password for the root user of Mysql/Mariadb and Postgresql
Reconfigure Mysql/Mariadb Password
1. Stop the MySQL service.
service mysql stop
2. Start MySQL without password and permission checks.
mysqld_safe –skip-grant-tables &
3. Press [ENTER] again if your output is halted.
4. Connect to MySQL.
mysql -u root mysql
5. Run following commands to set a new password for root user. Substitute NEW_PASSWORD with your new password.
UPDATE user SET password=PASSWORD('my new p4ssw0rd') WHERE user='root';
FLUSH PRIVILEGES;
6. Restart the MySQL service.
service mysql restart
Reconfigure Postgresql Password
1. Open psql from the postgres user.
sudo -u postgres psql
2. Change password of the postgres user (or any other database user)
\password postgres
or
\password myuser
3. Quit pgsql
\q