SQL Fiddle 和 Oracle NOVA 之间的区别

Question

我有以下表格：

CREATE TABLE CUSTOMERS
(customerID     INT     PRIMARY KEY,
customerFullName        VARCHAR(20) NOT NULL);

CREATE TABLE VEHICLES
(vehicleVIN     VARCHAR(25) PRIMARY KEY,
vehicleMake     VARCHAR(15) NOT NULL);

CREATE TABLE SALES
(saleID         INT     PRIMARY KEY,
customerID      INT,
vehicleVIN      VARCHAR(25));
CONSTRAINT SALES_FK1 FOREIGN KEY (customerID) REFERENCES CUSTOMERS(customerID),
CONSTRAINT SALES_FK2 FOREIGN KEY (vehicleVIN) REFERENCES VEHICLES(vehicleVIN));

并对这些表中的运行构建了以下查询：

SELECT VEHICLES.vehicleMake, CUSTOMERS.customerFullName
FROM SALES
JOIN CUSTOMERS on SALES.customerID = CUSTOMERS.customerID
    JOIN(
        SELECT SALES.vehicleVIN, VEHICLES.vehicleMake
        FROM SALES
          JOIN VEHICLES ON SALES.vehicleVIN = VEHICLES.vehicleVIN
          GROUP BY SALES.vehicleVIN, VEHICLES.vehicleMake
          HAVING COUNT(SALES.vehicleVIN) >= ALL
          (SELECT COUNT(SALES.vehicleVIN)
             FROM SALES
               INNER JOIN VEHICLES ON SALES.vehicleVIN=VEHICLES.vehicleVIN
               GROUP BY VEHICLES.vehicleMake))
      VEHICLES ON SALES.vehicleVIN = VEHICLES.vehicleVIN
      ORDER BY CUSTOMERS.customerFullName;

当我运行在 SQL Fiddle 中执行此操作时，它会完美执行并提供正确的输出（一列显示购买次数最多的车辆品牌，另一列显示显示购买该车辆品牌的每个人的客户全名）。

当我在 NOVA (Oracle) 中运行它时，它只是说 "No Rows Selected" 两者之间的语法有区别吗？我需要更改代码吗？谢谢！

Answer 1

自己回答。我在 SQL Fiddle 和 NOVA 之间的插入语句中提取数据时存在细微差异。问题是我的错，据我所知，一切正常。

我在 SQL fiddle 中的插入语句重新使用了一些车辆 VIN 号码，这有助于我编写的查询成功，但是查询不正确我正在努力完成。打开另一个问题来讨论该特定问题。

底线：我认为 NOVA DB 语法和 SQL Fiddle 语法之间没有任何重大差异。一切都很好！

SQL Fiddle 和 Oracle NOVA 之间的区别

Difference Between SQL Fiddle and Oracle NOVA

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