SQLite错误外键不匹配-股票引用变体

Question

当我尝试从表“产品”中删除所有内容时，出现标题中的错误消息 SQLite错误1：

  

外键不匹配-引用“变量”的“股票”

这是我的表定义

CREATE TABLE Products ( Codart TEXT NOT NULL, Descri TEXT NOT NULL,...
CONSTRAINT PK_Products PRIMARY KEY(Codart) )

CREATE TABLE Variants ( Codart TEXT NOT NULL, Codvar TEXT NOT NULL, 
CONSTRAINT PK_Variants PRIMARY KEY(Codart, Codvar), 
CONSTRAINT FK_Products FOREIGN KEY (Codart) REFERENCES Products(Codart) ON DELETE CASCADE )

CREATE TABLE Stock (Year int not null, Codart text NOT NULL, Codvar text NOT NULL, Qty real NOT NULL, 
CONSTRAINT PK_Stock PRIMARY KEY(`Year`,`Codart`,`Codvar`), 
CONSTRAINT FK_Products FOREIGN KEY (Codart) REFERENCES Products(Codart) ON DELETE CASCADE, 
CONSTRAINT FK_Variants FOREIGN KEY (Codvar) REFERENCES Variants(Codvar) ON DELETE CASCADE )

问题是我何时尝试跑步 “从产品中删除” 我在上面遇到错误

Answer 1

在Stock上尝试

CONSTRAINT FK_Variants FOREIGN KEY (Codart,Codvar) REFERENCES Variants(Codart,Codvar) ON DELETE CASCADE