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An SQL join clause combines records from two or more tables or views.

4
votes
) SELECT * FROM sample A INNER JOIN #CUT B ON A.ID > B.ID You will notice that in the execution plan that the first query does a simple table scan for an estimated cost of 0.005. For the second … construction you'll see that the plan for the insert has an estimated cost of around 0.01, and the query itself added an extra table scan (for your temporary table) and a nested loops join to combine data …
answered Aug 16 '18 by Tom V - Team Monica
32
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salestable.dataareaid = custtable.dataareaid SELECT * FROM salestable JOIN custtable ON salestable.custaccount = custtable.accountnum AND salestable.dataareaid = custtable.dataareaid SELECT * FROM salestable … JOIN custtable ON salestable.custaccount = custtable.accountnum WHERE salestable.dataareaid = custtable.dataareaid Gives these execution plans …
answered Jun 30 '15 by Tom V - Team Monica