Is there a difference between Select * and Select [list each col] [duplicate]

Answer 1

SELECT * FROM MyTable

select * is dependent on the column order in the schema so if you refer to the result set by the index # of the collection you will be looking at the wrong column.

SELECT Col1,Col2,Col3 FROM MyTable

this query will give you a collection that stays the same over time, but how often are you changing the column order anyways?