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MERGE

July 10, 2024, 6:18 p.m. under SQLSyntax
    • Hi! You should also check CREATE FORIEGN KEY syntax first.
    MERGE syntax in SQL
    MERGE INTO target_table AS t
USING source_table AS s
ON t.key_column = s.key_column
WHEN MATCHED THEN
    UPDATE SET t.column1 = s.column1, t.column2 = s.column2
WHEN NOT MATCHED THEN
    INSERT (column1, column2) VALUES (s.column1, s.column2)
WHEN NOT MATCHED BY SOURCE THEN
    DELETE;

    Thank You! You should also check SQL Tutorial course.
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