Description:
Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.
Reason: Failed to determine a suitable driver class
Action:
Consider the following:
If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.
If you have database settings to be loaded from a particular profile you may need to activate it (the profiles {ENV:prod} are currently active).

DBPORT=3306 DBNAME=railway
DBUSERNAME=root DBPASSWORD=lWhSnswbRiOftIAimgBCTvymsuiqxVqg
DB_HOST=mysql.railway.internal

Database variables i used to connect, and created env variables in my project. now , I don't know where I'm going wrong.

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