tsql merge example
MERGE esqlProductTarget T
USING esqlProductSource S
ON (S.ProductID = T.ProductID)
WHEN MATCHED
THEN UPDATE
SET T.Name = S.Name,
T.ProductNumber = S.ProductNumber,
T.Color = S.Color
WHEN NOT MATCHED BY TARGET
THEN INSERT (ProductID, Name, ProductNumber, Color)
VALUES (S.ProductID, S.Name, S.ProductNumber, S.Color)
WHEN NOT MATCHED BY SOURCE
THEN DELETE;merge clause with inner join
MERGE table1
USING (SELECT table3.keycolumn,
table2.DataColumn1,
table2.DataColumn2
FROM table2
INNER JOIN table3
ON table2.anotherKey = table3.anotherKey
WHERE table2.anotherKey = 'A1') tmpTable
ON
table1.keyColumn = tmpTable.keyColumn
WHEN MATCHED THEN
UPDATE
SET table1.DataColumn1 = tmpTable.DataColumn1
,table1.DataColumn2 = tmpTable.DataColumn2;Copyright © 2021 Codeinu
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