Why SELECT * is bad for SQL performance (2020)
> assuming that your application doesn’t actually need all the columns.Title is a bit click-bait-ish; I was expecting some deep insight of why this:     SELECT A,B,C FROM TBL;

was superior to this:     SELECT * FROM TBL;

when the table had three columns. Instead we get a wildcards are bad argument; especially when that wildcard fetches data that you don't need etc; which I guess everyone agrees with.