diff --git a/Database.cs b/Database.cs
new file mode 100644
index 0000000..137d957
--- /dev/null
+++ b/Database.cs
@@ -0,0 +1,47 @@
+using System.Data.SQLite;
+
+namespace Database
+{
+    public class Database
+    {
+        public static void CreateDatabaseQuery()
+        {
+            string createTableQuery = @"
+				CREATE TABLE [Books] (
+				    [ID] INTEGER PRIMARY KEY AUTOINCREMENT,
+				    [Name] TEXT NOT NULL,
+				    [YearOfRelease] INTEGER,
+				    [Total] INTEGER,
+				    [Available] INTEGER,
+				    [AuthorID] INTEGER,
+				    [PublisherID] INTEGER,
+				    FOREIGN KEY ([AuthorID]) REFERENCES [Authors]([ID]),
+				    FOREIGN KEY ([PublisherID]) REFERENCES [Publisher]([ID])
+				);
+				CREATE TABLE [Authors] (
+				    [ID] INTEGER PRIMARY KEY AUTOINCREMENT,
+				    [Name] TEXT,
+				    [Surname] TEXT
+				);
+				CREATE TABLE [Publisher] (
+				    [ID] INTEGER PRIMARY KEY AUTOINCREMENT,
+				    [Name] TEXT,
+				    [State] TEXT
+				);
+				CREATE TABLE [Borrows] (
+				    [ID] INTEGER PRIMARY KEY AUTOINCREMENT,
+				    [DateOfBorrow] TEXT,
+				    [DateOfReturn] TEXT,
+				    [UserID] INTEGER,
+				    [BookID] INTEGER,
+				    FOREIGN KEY ([UserID]) REFERENCES [Users]([ID]),
+				    FOREIGN KEY ([BookID]) REFERENCES [Books]([ID])
+				);
+				CREATE TABLE [Users] (
+				    [ID] INTEGER PRIMARY KEY AUTOINCREMENT,
+				    [Name] TEXT,
+				    [Surname] TEXT
+				);";
+        }
+    }
+}
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