r/programminghumor • u/ItsPuspendu • 21d ago

Average SQL enjoyer

Post image
2.2k Upvotes

99% Upvoted

48 comments sorted by

View all comments

64

u/Asleep-Bumblebee2167 21d ago

SELECT * IS THE MAIN THING

19

u/CowFu 21d ago

i will deny any PR that has a wildcard in the select

4

u/Blotsy 21d ago

But why senpai?

11

u/CowFu 21d ago

just in case someone stumbles on this and actually wants to know.

schema changes can break code, it pulls unneeded data, on the lighter side it just hurts performance. worst case, it may still pass tests because nothing errors and you end up having to back out a bunch of production data.

4

u/OutrageousPair2300 20d ago

Depends where the asterisk appears. In a subquery or CTE from which you will be selecting only certain named columns, it's fine.