mysql具有和聚合功能

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我試圖讓所有的「balcao」與最大。「nCli」的值與mysql具有和聚合功能

SELECT cli.idBalcao, count(*) AS nCLientes 
    FROM cliente AS cli 
    GROUP BY cli.idBalcao 
    HAVING nClientes=MAX(nClientes)

任何人都知道爲什麼這樣不起作用？我使用用戶定義的變量解決了這個問題，但是這個代碼應該在MySQL上工作。

來源

2017-05-26 Armando Mendes

見http://meta.stackoverflow.com/questions/333952/why-should-i-provide-an -mcve-for-what-seem-to-the-very-simple-sql-query – Strawberry

如果你改變，要

SELECT cli.idBalcao, count(*) AS nCLientes, 
MAX(nCli) as maxClientes 
    FROM cliente AS cli 
    GROUP BY cli.idBalcao 
    HAVING nClientes = maxClientes

（OR）

SELECT cli.idBalcao, count(*) AS nCLientes 
    FROM cliente AS cli 
    GROUP BY cli.idBalcao 
    HAVING nClientes IN (select MAX(nCli) from cliente)

來源

2017-05-26 12:34:28 Rahul

MAX（nClientes）？中暑？ – Strawberry

@Strawberry，啊！感謝指出。 – Rahul

它實際上並沒有變得更好:-( – Strawberry

mysql具有和聚合功能

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