This is a discussion on join within the MySQL Database forums, part of the Database Forums category; sorry for the "stupid" question. if I have these tables: A B 2 1 1 2 7 5 ...
|
|||||||
| FAQ | Members List | Calendar | Search | Today's Posts | Mark Forums Read |
|
|||
|
On Thu, 31 Jan 2008 16:25:41 +0100, <anarchix85@gmail.com> wrote:
> sorry for the "stupid" question. > if I have these tables: > > A B > 2 1 > 1 2 > 7 5 > 2 7 > > > A JOIN B is: > > 2 2 > 7 7 > > or not?? Depends on how you join.... The way you pose it, I'd say it's rather: 2 2 1 1 7 7 2 2 -- Rik Wasmus |
|
|||
|
anarchix85@gmail.com <anarchix85@gmail.com> wrote in <071db156-69d5-4872-9987-4ff4f1a28157@e10g2000prf.googlegroups.com>: > if I have these tables: > > A B > 2 1 > 1 2 > 7 5 > 2 7 > > A JOIN B is: > > 2 2 > 7 7 > > or not?? mysql> SELECT * FROM A JOIN B; +-------+-------+ | value | value | +-------+-------+ | 2 | 1 | | 1 | 1 | | 7 | 1 | | 2 | 1 | | 2 | 2 | | 1 | 2 | | 7 | 2 | | 2 | 2 | | 2 | 5 | | 1 | 5 | | 7 | 5 | | 2 | 5 | | 2 | 7 | | 1 | 7 | | 7 | 7 | | 2 | 7 | +-------+-------+ 16 rows in set (0.03 sec) -- <>There is no phenotype</> |
|
|||
|
anarchix85@gmail.com wrote:
> sorry for the "stupid" question. > if I have these tables: > > A B > 2 1 > 1 2 > 7 5 > 2 7 > > > A JOIN B is: > > 2 2 > 7 7 > > or not?? > > thanks Why ask stupid questions and spend some time testing and using this new tool on the internet called a search engine... there is an old acronym that most people like you seem to have forgotten -- RTFreakinM... |