Question

I have two tables..

Persons:

  empid(primary key)
  firstname
  lastname
  email

Details:

  Did(primary key)
  salary
  designation
  empid

Now I need to SELECT first name and last name of employees whose designation is Manager.

I am a beginner, I have been learning SQL from W3school (which is awesome btw), if you can suggest me where should I go after completing w3school that would be just great!

Answer 1

It’s pretty much as you said it, with a simple join on the column that relates the two tables together (in this case EmpID):

SELECT firstname,
       lastname
FROM   Persons
       INNER JOIN Details
         ON Persons.EmpID = Details.EmpID
WHERE  designation = 'Manager' 

As for best source of knowledge, you can’t beat books, MSDN, and StackOverFlow if you ask me. There’s a good few blogs around too – but they tend to be for more advanced topics. The writers tend to hang around SO anyway!