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;

Source: essentialsql.com

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;

Source: stackoverflow.com

Similar codes

1 vote326 views1 answer
Pv mysql import
SQL
0 vote352 views1 answer
Drop domain postgresql
SQL
0 vote394 views1 answer
Query only first letter string
SQL
1 vote339 views2 answers
Postgresql get difference in hours between two dates
SQL
0 vote354 views1 answer
Cannot pip install mysqlclient
SQL
1 vote320 views1 answer
Stop mysql server mac
SQL
1 vote331 views2 answers
Sql now - 1 day
SQL
0 vote357 views1 answer
Spark sql grows beyond 64 kb
SQL
25 votes348 views6 answers
Import mysql database command line
SQL
0 vote357 views1 answer
Ajouter une clé etrangere mysql
SQL