下面的代码显示oracle中无效标识符的错误

Question

create table productinfotwo
(
productId number(10),
CONSTRAINT primary_pk Primary Key(productId),
productname varchar2(100),
SUBCATEGORYID number(10),
CONSTRAINT subcategory_fk Foreign Key(SUBCATEGORYID ) REFERENCES ProductSubCategory(SUBCATEGORYID ), 
COMPANYID varchar2(20), 
CONSTRAINT company_fk Foreign Key(COMPANYID ) References CompanyInfo(COMPANYID ),
price float,
quantity number(10),
description varchar2(1000),
);

Answer 1

您需要按顺序使用

1. 创建ProductSubCategory表
2. 创建CompanyInfo表
3. Oracle中没有名为float的数据类型。您可以使用NUMBER（4,2）代替
4. 删除说明后的逗号

代码应为

CREATE TABLE productinfotwo 
  ( 
     productid     NUMBER(10), 
          CONSTRAINT primary_pk PRIMARY KEY(productid), 
          productname   VARCHAR2(100), 
          subcategoryid NUMBER(10), 
          CONSTRAINT subcategory_fk FOREIGN KEY(subcategoryid ) REFERENCES 
          productsubcategory(subcategoryid ), 
          companyid     VARCHAR2(20), 
          CONSTRAINT company_fk FOREIGN KEY(companyid ) REFERENCES companyinfo( 
          companyid ), 
     price         NUMBER(4, 2), 
     quantity      NUMBER(10), 
     description   VARCHAR2(1000) 
  );