1. SQL Syntax Command
https://www.youtube.com/watch?v=_fRle52B_4U&list=PL6FWrrVlQUa_t_ajJwbzpURy FE-wGJglu&index=2

2. Data Types
https://www.youtube.com/watch?v=R_iukytns5U&list=PL6FWrrVlQUa_t_ajJwbzpURy FE-wGJglu&index=3

3. INSERT Query
https://www.youtube.com/watch?v=1krJoVkQnGE&list=PL6FWrrVlQUa_t_ajJwbzpURy FE-wGJglu&index=5

4. SELECT Query
https://www.youtube.com/watch?v=en_tpQW_3ns&list=PL6FWrrVlQUa_t_ajJwbzpURy FE-wGJglu&index=6

5. WHERE Clause
https://www.youtube.com/watch?v=1NqEm4G3PSQ&list=PL6FWrrVlQUa_t_ajJwbzpURy FE-wGJglu&index=7

More:
https://www.youtube.com/watch?v=cEyLugq8QkI&list=PL6FWrrVlQUa_t_ajJwbzpURy FE-wGJglu&index=1