Good one; thank you for posting.
(the word "attempt" confused me and I executed one after the other insert statement and as I imagined, it must returned 3, and I was more confused when it pointed as wrong and all the focus was taken by "go"; it would have been great if mentioned "execute the whole as a batch"... might have give more strength to the question)
ww; Raghu
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The first and the hardest SQL statement I have wrote- "select * from customers" - and I was happy and felt smart.