SQL Server 管理：INSERT 语句与 FOREIGN KEY 约束冲突

Question

我正在使用 SQL Server Management 创建数据库（在大学工作），我正在尝试将新值插入到表中但收到错误。

我创建的两个相关表是：

create table ballotBox
(
    bno integer,
    cid numeric(4,0) references city,
    street varchar(20),
    hno integer,
    totvoters integer,
    primary key (bno)
);

create table votes
(
    cid numeric(4,0) references city,
    bno integer references ballotBox,
    pid numeric(3,0) references party,
    nofvotes integer
);

我首先将值输入到 ballotBox（以及表格“city”和“party”）：

insert into ballotBox values 
    (1, 1, 'street1', 10, 1500),
    (2, 1, 'street2', 15, 490),
    (3, 1, 'street2', 15, 610),
    (4, 1, 'street2', 15, 650),
    (5, 2, 'street3', 10, 900),
    (6, 2, 'street3', 55, 800),
    (7, 2, 'street4', 67, 250),
    (8, 2, 'street4', 67, 990),
    (9, 2, 'street5', 5, 600),
    (10, 3, 'street1', 72, 1000),
    (11, 3, 'street6', 25, 610),
    (12, 3, 'street6', 25, 600),
    (13, 4, 'street2', 3, 550),
    (14, 4, 'street7', 15, 500),
    (15, 5, 'street8', 44, 1100),
    (16, 5, 'street9', 7, 710),
    (17, 5, 'street10', 13, 950);

然后我尝试输入值来投票：

insert into votes values
    (1, 1, 200, 100),
    (1, 11, 210, 220),
    (1, 1, 220, 2),
    (1, 1, 230, 400),
    (1, 1, 240, 313),
    (1, 1, 250, 99),
    (2, 1, 200, 55),
    (2, 10, 210, 150),
    (2, 10, 220, 2),
    (2, 1, 230, 16),
    (2, 1, 240, 210),
    (2, 9, 250, 54),
    (3, 9, 200, 234),
    (3, 9, 210, 123),
    (3, 1, 220, 8),
    (3, 1, 230, 87),
    (3, 1, 240, 76),
    (3, 1, 250, 6),
    (4, 1, 200, 135),
    (4, 1, 210, 246),
    (4, 17, 220, 7),
    (4, 1, 230, 18),
    (4, 1, 240, 44),
    (4, 1, 250, 66),
    (1, 2, 200, 373),
    (1, 2, 210, 12),
    (1, 2, 220, 3),
    (1, 2, 230, 74),
    (1, 2, 240, 58),
    (1, 2, 250, 272),
    (2, 6, 200, 139),
    (2, 6, 210, 2580),
    (2, 2, 220, 6),
    (2, 2, 230, 73),
    (2, 2, 240, 7),
    (2, 2, 250, 99),
    (3, 2, 200, 15),
    (3, 2, 210, 68),
    (3, 2, 220, 12),
    (3, 2, 230, 12),
    (3, 2, 240, 15),
    (3, 2, 250, 25),
    (4, 2, 200, 7),
    (4, 2, 210, 245),
    (4, 2, 220, 8),
    (1, 0, 0.0, 361),
    (4, 2, 240, 67),
    (4, 2, 250, 144),
    (5, 2, 200, 123),
    (5, 2, 210, 76),
    (5, 2, 220, 15),
    (5, 2, 230, 158),
    (5, 2, 240, 76),
    (5, 2, 250, 132),
    (1, 3, 200, 152),
    (1, 3, 210, 517),
    (1, 3, 220, 0),
    (1, 3, 230, 267),
    (2, 3, 200, 87),
    (2, 3, 210, 134),
    (2, 3, 220, 4),
    (2, 3, 230, 11),
    (2, 3, 240, 256),
    (2, 3, 250, 76),
    (3, 3, 200, 105),
    (3, 3, 210, 132),
    (3, 3, 3220, 3),
    (3, 3, 230, 24),
    (3, 3, 240, 254),
    (3, 3, 250, 12),
    (1, 4, 200, 61),
    (1, 4, 210, 54),
    (1, 4, 220, 5),
    (1, 4, 230, 19),
    (1, 4, 240, 1),
    (1, 4, 250, 47),
    (2, 4, 200, 17),
    (2, 4, 210, 23),
    (2, 4, 220, 0),
    (2, 4, 230, 64),
    (2, 4, 240, 11),
    (2, 4, 250, 149),
    (1, 5, 0200, 187),
    (1, 5, 210, 88),
    (1, 5, 220, 1),
    (1, 5, 230, 255),
    (1, 5, 240, 12),
    (1, 5, 250, 373),
    (2, 2, 500, 245),
    (2, 5, 210, 120),
    (2, 5, 220, 9),
    (2, 5, 230, 19),
    (2, 5, 240, 234),
    (2, 5, 250, 5),
    (3, 5, 200, 107),
    (3, 5, 210, 18),
    (3, 5, 220, 11),
    (3, 5, 230, 54),
    (3, 5, 240, 378),
    (3, 5, 250, 243);

但我收到一个错误：

消息 547，第 16 级，状态 0，第 1 行
INSERT 语句与 FOREIGN KEY 约束“FK__votes__bno__1920BF5C”冲突。冲突发生在数据库“投票”、表“dbo.ballotBox”、列“bno”中。声明已终止。

Answer 1

你正在尝试插入

 (1, 0, 0.0, 361),

在votes 表中有FK bno ballotbox表中没有对应0的记录 请从投票声明中删除此行，然后插入

Answer 2

两个表之间的关系不正确。

这样做：

create table votes
(
    cid numeric(4,0),
    bno integer,
    pid numeric(3,0),
    nofvotes integer
    foreing key cid reference city(cid)
    foreing key bno reference ballotbox (bno)
    foreing key pid reference party(pid)
);