ORA-00904 ：：无效标识符

Question

我正在尝试在Oracle中创建一个表并获取错误： ORA-00904: : invalid identifier

这是我的命令。我真的看不到任何问题。请帮助我确定错误。谢谢。

CREATE TABLE Sale (
CustomerId INT NOT NULL ,
BarCode INT NOT NULL ,
SalesId INT NOT NULL ,
Date DATE NULL ,
CheckOut TINYINT(1) NULL ,
PRIMARY KEY (CustomerId, BarCode, SalesId) ,
CONSTRAINT fk_Customer_has_Product_Customer
FOREIGN KEY (CustomerId )
REFERENCES Customer (CustomerId )
ON DELETE NO ACTION
ON UPDATE NO ACTION,
CONSTRAINT fk_Customer_has_Product_Product1
FOREIGN KEY (BarCode )
REFERENCES Product (BarCode )
ON DELETE NO ACTION
ON UPDATE NO ACTION);

Answer 1

如前所述，将“日期”更改为更具描述性而不是保留的东西。而且，似乎 微小 在表中不起作用，因此将其更改为数字（1），以及托尼的正确建议减少名称大小（<= 30 chrs）

CREATE TABLE Sale
(
    CustomerId INT NOT NULL                    ,
    BarCode    INT NOT NULL                    ,
    SalesId    INT NOT NULL                    ,
    SaleDate DATE NULL                    , --DATE is reserved, changed to SaleDate
    CheckOut number(1) NULL               , --tinyint(1) did not work so changed to number(1)
    PRIMARY KEY( CustomerId, BarCode, SalesId )     ,
    CONSTRAINT fk_SaleCustCusID FOREIGN KEY( CustomerId ) REFERENCES Customer( CustomerId ) ON
    DELETE NO ACTION ON
    UPDATE NO ACTION,
    CONSTRAINT fk_SaleCustBarCode FOREIGN KEY( BarCode ) REFERENCES Product( BarCode ) ON
    DELETE NO ACTION ON
    UPDATE NO ACTION
);

Answer 2

Oracle标识符的最大长度为30个字符。超过了这一点，有32个字符长：

• fk_customer_has_product_customer
• fk_customer_has_product_product1

看 模式对象命名规则