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목록left join (1)
Data Science Explorer
[Basic Grammar] SQL LEFT JOIN
The LEFT JOIN returns all records from the left table (table 1). In other words, if there is no match with table 2, the result is 0 records from the right side. Syntax SELECT column_name(s) FROM table1 LEFT JOIN table2 ON table1.column_name = table2.column_name; Example SELECT Brands.BrandName, Orders.OrderID FROM Brands LEFT JOIN Orders ON Brands.BrandsID = Orders.OrderID ORDER BY Brands.BrandN..
SQL
2023. 10. 18. 20:25