title: How to denote primary key and foreign key in my entity relationship diagram?
body: <p>I have a database and i want to generate ER (entity relationship) diagrams
    for the database. I have tables and foreign key relation to the other tables
    how to mention these relation ship in my ER diagrams?</p>
  
  <p>I am new to ER diagrams can you tell me?what is the best way to design?</p>
  
  <p>can u tell me ER diagrams only for database?</p>
  
  <p>I have one table it contains nearly 32 fields all the fields is mandatory to
    mentioned in ER diagram?</p>