I have made a basic left join statement say "Select t.*, p.usenet_id
from usenet_group_1 u left join user_table t on u.id = t.usenet_id;
but only want the recordset to return values from user_table if field
in user_table have a certain value ( if usenet_group = 5 ) - can this
be done within the above sql statement or do i have to make 2 seperate
statements?
regards
Jakob ou****@HaHapost 6.tele.dk
Cut out the laughing if replying to email address 2 5800
Well - found the answer myself - it was really to easy: Just need to
add the field, ie;
"Select t.*, p.usenet_id, p.usenet_group from usenet_group_1 u left
join user_table t on u.id = t.usenet_id and p.usenet_group = 5;
:- |
On Thu, 29 Dec 2005 07:17:08 GMT, ou****@HaHapost 6.tele.dk (Jakob
Outzen) wrote: I have made a basic left join statement say "Select t.*, p.usenet_id from usenet_group_1 u left join user_table t on u.id = t.usenet_id; but only want the recordset to return values from user_table if field in user_table have a certain value ( if usenet_group = 5 ) - can this be done within the above sql statement or do i have to make 2 seperate statements?
regards Jakob ou****@HaHapos t6.tele.dk Cut out the laughing if replying to email address ou****@HaHapost 6.tele.dk
Cut out the laughing if replying to email address
"Jakob Outzen" <ou****@HaHapos t6.tele.dk> wrote in message
news:43******** ********@news.i net.tele.dk... I have made a basic left join statement say "Select t.*, p.usenet_id from usenet_group_1 u left join user_table t on u.id = t.usenet_id; but only want the recordset to return values from user_table if field in user_table have a certain value ( if usenet_group = 5 )
Yep, you can specify conditions in the ON clause of an outer join.
Rows that don't match are not included in the join.
For example:
SELECT t.*, p.usenet_id
FROM usenet_group_1 u LEFT OUTER JOIN user_table t
ON (u.id = t.usenet_id AND t.usenet_group = 5)
Regards,
Bill K. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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