Add files via upload

Author: santhosh-programmer

Practicals/demo.java

@@ -0,0 +1,46 @@
+import java.sql.*;
+public class demo {
+    public static void main(String[] args) {
+
+    try{
+        Connection con=DriverManager.getConnection("jdbc:mysql://localhost:3306/","root","SanthoshPassword");
+        Statement stmt=con.createStatement();
+        stmt.executeUpdate("CREATE DATABASE company");
+        stmt.executeUpdate("""
+            CREATE TABLE company.employee
+            (
+                Id int NOT NULL UNIQUE,
+                Name char(50) NOT NULL
+            );
+
+        """);
+        System.out.println("Database created successfully");
+        stmt.executeUpdate("INSERT INTO company.employee VALUES(101,'ram')");
+        stmt.executeUpdate("INSERT INTO company.employee VALUES(102,'raaam')");
+        ResultSet rs=stmt.executeQuery("SELECT * FROM company.employee");
+        while(rs.next())
+        {
+            System.out.println("ID: "+rs.getInt(1)+" NAME: "+rs.getString(2));
+        }
+        stmt.executeUpdate(" UPDATE company.employee SET Name='raaaaaaam' WHERE Name='ram' ");
+        ResultSet r=stmt.executeQuery("SELECT * FROM company.employee");
+        System.out.println("After editing: ");
+        while(r.next())
+        {
+            System.out.println("ID: "+r.getInt(1)+" NAME: "+r.getString(2));
+        }
+        stmt.executeUpdate("DELETE FROM company.employee WHERE Id=101");
+        ResultSet s=stmt.executeQuery("SELECT * FROM company.employee");
+        System.out.println("After deleting: ");
+        while(s.next())
+        {
+            System.out.println("ID: "+s.getInt(1)+" NAME: "+s.getString(2));
+        }
+
+
+    }
+    catch(Exception e) {
+        System.out.println(e);
+    }
+}
+}