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Many things. I mean, you could hack a lot of stuff into Excel but generally
SQL has foreign keys and integrity checks. You can make it so like if you delete a user it automatically cascades to delete other rows like their addresses.
You can prevent someone from entering the wrong type of data in particular columns. This one’s an integer and that one’s text.
It’s designed to work on larger scales. Excel stops at 1 million rows per spreadsheet, unless my search just gave me AI slop.
You can do queries, for selecting as well as updating and deleting. You can join tables.
It’s much easier for other applications (such as a website) to talk to a SQL database
You can do transactions.
There’s a lot. That’s just off the top of my head.
I’m not sure what you mean. There aren’t really a lot of “quests” in gw2.
There’s the main story, which is a green marker on your map. That’s always there (unless you turn it off or finish it)
There’s orange markers for nearby events. That’s like “zombies are attacking! Save the town!” or “help these kids pick apples” or whatever. They’re just things that happen in the world and, to a limited degree, change the world state. Like an area might be full of toxic vines until an event finishes successfully, or a merchant might only sell items after his mission succeeds.
There’s red markers, which are basically the same as orange, except they tend to be world events and not local.
And then there are collections, which are kind of like quests. They’re not super advertised. They’re kind of of “get these achievements for a special reward”. Sometimes NPCs will give you one- like “go find all my favorite fish” or whatever. They’re optional, but sometimes fun and sometimes have good rewards. Like if you finish the one where you get most of the achievements for one chunk of the game, you get a max-stats accessory that all your characters can share.
Anyway. Long reply. Nothing is really beamed into your head, no.