问题答案中的外键输入可能会导致多个级联?

问题描述

create database CodingHelpUz
go

use CodingHelpUz
go

create table Categories (
CategoryID int primary key identity(1,1),CategoryName nvarchar(max))
go

create table Users(
UserID int primary key identity(1,Email nvarchar(max),PasswordHash nvarchar(max),Name nvarchar (max),Mobile nvarchar (max),IsAdmin bit default(0))
go

create table Questions(
QuestionID int primary key identity(1,QuestionName nvarchar(max),QuestionDateAndTime datetime,UserID int references Users(UserID) on delete cascade,CategoryID int references Categories(CategoryID) on delete cascade,VotesCount int,AnswersCount int,ViewsCount int)
go

create table Answers(
AnswerID int primary key identity(1,AnswerText nvarchar(max),AnswerDateAndTime datetime,QuestionID int references Questions(QuestionID) on delete cascade,VotesCount int)
go

create table Votes(
VoteID int primary key identity (1,AnswerID int references Answers(AnswerID) on delete cascade,VoteValue int)
go

use CodingHelpUz
go

insert into Users values ('[email protected]','240be518fabd2724ddb6f04eeb1da5967448d7e831c08c8fa822809f74c720a9','Admin','998907172353',1)
go

insert into Users values ('[email protected]','ecd71870d1963316a97e3ac3408c9835ad8cf0f3c1bc703527c30265534f75ae','Test','000000000000',0)
go

insert into Categories values('HTML')
go

insert into Categories values('CSS')
go

insert into Categories values('Bootstrap')
go

insert into Categories values('NodeJs')
go

insert into Categories values('JS')
go

insert into Categories values('JQuery')
go

insert into Categories values('PHP')
go

insert into Categories values('C++')
go

insert into Categories values('C#')
go

insert into Categories values('Java')
go

insert into Categories values('Kotlin')
go

insert into Categories values('Python')
go

insert into Categories values('Sql')
go

解决方法

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