Re: Two Tables That Share Data?

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От Carlos Mennens
Тема Re: Two Tables That Share Data?
Дата
Msg-id CAAQLLO5pY7ASQzZQ-5adeOF60F0Vs8F7=gUaOhTdJeD-B3UqTA@mail.gmail.com
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Ответ на Re: Two Tables That Share Data?  (Michael Wood <esiotrot@gmail.com>)
Ответы Re: Two Tables That Share Data?  (Bartosz Dmytrak <bdmytrak@eranet.pl>)
Список pgsql-novice
On Thu, Feb 9, 2012 at 11:28 AM, Michael Wood <esiotrot@gmail.com> wrote:
> Try something like this:
>
> SELECT e.fname AS emp_fname, e.lname AS emp_lname, m.name AS manager
> FROM employees AS e
> INNER JOIN managers AS m ON e.manager = m.id
> WHERE e.salary = 12345.67;

I'm going to try this now but while I was working on this in pgAdmin3
query builder tool, I got the results I wanted which was to just query
my employee table and translate the employees.manager field from
INTEGER to their actual name referenced in 'managers.name' as show
below:

psql (9.1.2)
SSL connection (cipher: DHE-RSA-AES256-SHA, bits: 256)
Type "help" for help.

zoo=# SELECT
  employees.id,
  employees.fname,
  employees.lname,
  managers.name AS manager
FROM
  employees,
  managers
WHERE
  employees.manager = managers.id AND employees.fname = 'Carlos';
 id | fname  |  lname  |    manager
----+--------+---------+---------------
  1 | Carlos | Mennens | Phill Collins
(1 row)

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