I am facing a problem while using code first approach in MVC. I have made the class of employee, context class and connection string. Still my database not generated. I don’t know how to use migration. See the code below:

Thanks in advance 

Employee class

public class Employee   
{       
    public int ID { get; set; }
       
    public string EmpName { get; set; }
       
    public int Salary { get; set; }
} 

Context class 

public class DepartmentDB_Context: DbContext
{       
    public DepartmentDB_Context() : base("DepartmentDB_Context") { }
       
    public DbSet<Employee> EmployeeTable { get; set; }
} 

Web.config

<connectionStrings>
    <add name="DepartmentDB_Context" connectionString="data source=.; User Id=sa; Password=1234; initial catalog=DepartmentDB_Context;" providerName="System.Data.SqlClient"/>