ORA-00907: 使用 FK 时缺少右括号

Question

SQL>
SQL> CREATE TABLE Recipe
(Quantity_used DECIMAL (2,1)
FOREIGN KEY "ICECREAM_ID"
REFERENCES icecreamGT(Icecream_id),
FOREIGN KEY (ingredient_id) REFERENCES ingredient (Ingredient_name),
);
  2    3    4    5    6  FOREIGN KEY "ICECREAM_ID"
*
ERROR at line 3:
ORA-00907: missing right parenthesis

更新：新代码调整了逗号和括号

CREATE TABLE Recipe 
(
Quantity_used DECIMAL (2,1),
FOREIGN KEY (ID_icecream)
REFERENCES icecreamGT(Icecream_id)
FOREIGN KEY (ID_ingredient)
REFERENCES ingredient(Ingredient_name)
);

Answer 1

您的声明没有：

recipe 中的 icecream_id 列 table;
recipe 中的 ingredient_id 列 table;
正确位置的逗号；
() 外键列列表中 "ICECREAM_ID" 标识符两边的括号。

即：

CREATE TABLE Recipe(
  Quantity_used   DECIMAL (2,1),
  icecream_id     NUMBER,
  ingredient_id   NUMBER,
  FOREIGN KEY (ICECREAM_ID) REFERENCES icecreamGT(Icecream_id),
  FOREIGN KEY (ingredient_id) REFERENCES ingredient (Ingredient_name)
);

db<>fiddle here

ORA-00907: 使用 FK 时缺少右括号

ORA-00907: missing right parenthesis when using FK

oracle

foreign-keys