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-- Kullanıcılar tablosu
CREATE TABLE Users (
    UserID INT PRIMARY KEY,
    Username NVARCHAR(50) NOT NULL,
    Password NVARCHAR(50) NOT NULL,
    Email NVARCHAR(100) NOT NULL,
    RegistrationDate DATETIME
);

-- Makaleler tablosu
CREATE TABLE Articles (
    ArticleID INT PRIMARY KEY,
    Title NVARCHAR(100) NOT NULL,
    Content NVARCHAR(MAX) NOT NULL,
    AuthorID INT,
    PublishDate DATETIME,
    CategoryID INT,
    FOREIGN KEY (AuthorID) REFERENCES Authors(AuthorID),
    FOREIGN KEY (CategoryID) REFERENCES Categories(CategoryID)
);

-- Yazarlar tablosu
CREATE TABLE Authors (
    AuthorID INT PRIMARY KEY,
    AuthorName NVARCHAR(100) NOT NULL
);

-- Kategoriler tablosu
CREATE TABLE Categories (
    CategoryID INT PRIMARY KEY,
    CategoryName NVARCHAR(100) NOT NULL
);

-- Yorumlar tablosu
CREATE TABLE Comments (
    CommentID INT PRIMARY KEY,
    ArticleID INT,
    UserID INT,
    CommentText NVARCHAR(MAX) NOT NULL,
    CommentDate DATETIME,
    FOREIGN KEY (ArticleID) REFERENCES Articles(ArticleID),
    FOREIGN KEY (UserID) REFERENCES Users(UserID)
);