I have seen many queries with something as follows.
Select 1
From table
What does this 1
mean, how will it be executed and, what will it return?
Also, in what type of scenarios, can this be used?
See Question&Answers more detail:osI have seen many queries with something as follows.
Select 1
From table
What does this 1
mean, how will it be executed and, what will it return?
Also, in what type of scenarios, can this be used?
See Question&Answers more detail:os