我对一段SQL代码有点问题。我有一个表 Paiements_17_18 ,我想创建一个计算的单行查询:
所有这些来自样式SELECT TOP n FROM ....
我试过了:
SELECT Sum(P.Montant) AS TotalMontant,
First(P.Date_Regulation) AS PremièreDate,
Last(P.Date_Regulation) AS DernièreDate,
First(P.N_Facture) AS PremièreFacture,
Last(P.N_Facture) AS DernièreFacture,
(SELECT Count(N_Facture)
FROM (SELECT DISTINCT N_Facture FROM Paiements_17_18)) AS NombreFactures
FROM (SELECT TOP 5 Paiements_17_18.*
FROM Paiements_17_18
ORDER BY Paiements_17_18.ID_Paiement DESC) AS P;
但我收到错误“P”
(Microsoft Access数据库引擎找不到输入表或 查询“P”。确保它存在并且其名称拼写 正确地)
你能帮我吗?
答案 0 :(得分:1)
生成NombreFacture字段的2行导致错误:
SELECT Sum(P.Montant) AS TotalMontant,
First(P.Date_Regulation) AS PremièreDate,
Last(P.Date_Regulation) AS DernièreDate,
First(P.N_Facture) AS PremièreFacture,
Last(P.N_Facture) AS DernièreFacture,
(SELECT Count(n.N_Facture_distinct)
FROM (SELECT DISTINCT N_Facture as N_facture_distinct FROM Paiements_17_18 ) AS n)
AS NombreFacture
FROM (SELECT TOP 5 Paiements_17_18.*
FROM Paiements_17_18
ORDER BY Paiements_17_18.ID_Paiement DESC) AS P;
替换了两行。见下文。
DateTime.Now