Added Lab8.md, for full stack.

DBMS/FullStack/Lab8.md

@@ -0,0 +1,20 @@
+Visual Studio + SQLPlus Integration.
+
+Integration code:
+```cs
+using System;
+using System.Data.SqlClient;
+
+class Program
+{
+    static void Main(string[] args)
+    {
+        string connectionString = "Data Source=(local);Initial Catalog=Northwind;Integrated Security=True";
+        using (SqlConnection connection = new SqlConnection(connectionString))
+        {
+            connection.Open();
+            Console.WriteLine("Connection opened successfully.");
+        }
+    }
+}
+```