Question

Since I asked wrong in another thread and it was correctly answered, I start a new thread instead..

I have two tables

Records
id  |  type
------------
1   |  CD
2   |  CD

Titles
record_id  |  name     |  language
-------------------------------
1          |  Warning  |  'en'
1          |  Achtung  |  'de'
2          | Ambulance |  'en'

(SQL Fiddle in link: http://www.sqlfiddle.com/#!2/403d4/1)

If I request for the language ‘en’ i want:

1  |  Warning
2  |  Ambulance

and if I ask for ‘de’ I want

1  |  ACHTUNG
2  |  NULL

How do I write the SQL to get this result?

Answer 1

http://www.sqlfiddle.com/#!2/403d4/89

SELECT rec.id, title.name
FROM Records rec
LEFT JOIN Titles title ON title.record_id = rec.id and title.language='de';

SELECT rec.id, title.name
FROM Records rec
LEFT JOIN Titles title ON title.record_id = rec.id and title.language='en';


ID  NAME
1   ACHTUNG
2   (null)

ID  NAME
1   Warning
2   Ambulance