SQL 计数(*) 具有

问题描述

我在 oracle 上有这个查询。

lamejs

当我运行这个 sql 查询时，它给了我一个错误：无效标识符计数。

仅当计数大于给定参数时，我们如何获得结果？

谢谢。

解决方法

与 MySQL 不同，在 Oracle 中我们不能在 HAVING 子句中引用别名（别名只能在 ORDER BY 子句中引用）。一种解决方法是将您当前的逻辑放入 CTE，然后对其进行过滤。

WITH cte AS (
     SELECT CBG.refs,CBG.cuo,CBG.date AS cbg_date,CBG.nber,CG.date AS cg_date,CBG.conso,(SELECT COUNT(*) 
             FROM MAD.VIN CBV
             WHERE CBV.CUO = CBG.CUO AND 
                   CBV.NBER = CBG.NBER AND
                   CBV.DATE = CBG.DATE AND
                   CBV.REFS = CBG.REFS 
            GROUP BY CUO,DATE,NBER,REFS) AS COUNTS,CBG.CONSO_CONCESS AS CONCESS
    FROM MAD.GEN CBG
    INNER JOIN MAD.CAR_GEN CG
        ON CBG.cuo = CG.cuo AND 
           CBG.date = CG.date AND 
           CBG.nber = CG.nber
    WHERE CBG.CONSO_DATE IS NOT NULL
)

SELECT refs,cuo,cbg_date,nber,cg_date,conso,COUNTS,CONCESS
FROM cte
WHERE COUNTS > 0;