Easy cheats

 == MYSQL command

// show databases

show databases;

// select Db

use testdb;

// show tables;

show tables;

// show columns

desc tutorials;

==== Postman 

How to get the Token and paste auto to others API request?

Step: add this code to 'Script' Tab, to save the Token from response to the ENV variable

const response = pm.response.json();

pm.environment.set('token', response.access_token);