sql group by sum with condition - SQL 代码示例

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📜 sql group by sum with condition - SQL 代码示例

📅 最后修改于: 2022-03-11 15:04:54.032000 🧑 作者: Mango

代码示例1

SELECT CityID, 
       COUNT(*) NumberOfDogsInThisCity,
       SUM(CASE WHEN DogName = 'Tedy' THEN Wheight ELSE 0 END) WheightOfAllDogWithNameTedy
FROM Dogs
GROUP BY CityID