What is the error “Every derived table must have its own alias” in MySQL?

I am running this query on MySQL SELECT ID FROM ( SELECT ID, msisdn FROM ( SELECT * FROM TT2 ) ); and it is giving this error: Every derived table must have its own alias. What’s causing this error? 4 Answers 4 Every derived table (AKA sub-query) must indeed have an alias. I.e. each … Read more