Some questions are timeless and they never grow old; no matter how much they grow old their interest never dies. Earlier, I asked a simple puzzle based on a conversation on SQLAuthority Page, and have received an overwhelming response from readers. I still get emails related to this puzzle every day. Before we move on, I suggest you read the question and its initial solution here: Question: A Quick Puzzle on JOIN and NULL – SQL Brain Teaser Solution: Solution – A Quick Puzzle on JOIN and NULL – SQL Br...
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