Pekhov

sqlite3 test_guru.db
sqlite> CREATE TABLE categories(
   ...> id INTEGER PRIMARY KEY AUTOINCREMENT,
   ...> title TEXT
   ...> );
sqlite> CREATE TABLE tests(
   ...> id INTEGER PRIMARY KEY AUTOINCREMENT,
   ...> title TEXT,
   ...> level INTEGER,
   ...> category_id INTEGER,

Pekhov

C:\Users\Pekav>ncat -C httpbin.org 80
GET /anything HTTP/1.1
Host: httpbin.org

HTTP/1.1 200 OK
Connection: keep-alive
Server: gunicorn/19.9.0
Date: Mon, 22 Oct 2018 11:03:19 GMT
Content-Type: application/json
Content-Length: 245