How do I UPDATE from a SELECT in SQL Server?

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How do I UPDATE from a SELECT in SQL Server?

diagrammatical331994

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#21

07-31-2023, 09:36 AM

If you are using SQL Server you can update one table from another without specifying a join and simply link the two from the `where` clause. This makes a much simpler SQL query:

UPDATE Table1
SET Table1.col1 = Table2.col1,
Table1.col2 = Table2.col2
FROM
Table2
WHERE
Table1.id = Table2.id

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