Answer:
hmmmmm...hold up let me look up what dark supereffective means XD...
Explanation:
?oh so i only see stuff about pokemon so id imagine its about that...
Write "i" the write random words then delete it and add the lowercase i
Answer:
Basically it creates a unique identifier for each row in your table and that can help you link your table to other tables using primary key as link
Explanation:
"Primary key allows you to create a unique identifier for each row in your table. It is important because it helps you link your table to other tables (relationships) using primary key as links."
