I'm wondering if the p.active = 1 and u.active=1 ought to be in the ON clause, then there would be no need for the additional check for NULL.
On 4/14/06, Deanna Schneider <[EMAIL PROTECTED]> wrote: > > Hey folks, > I'm trying to convert a project from Oracle to Mysql 5, and I have a > question about outer join syntax in mysql. In oracle, I can do something > like the below to tell Oracle that on the outer joined table, if there's a > value, I want it to be X. On mySql, all I've been able to figure out is > the > second syntax (which works, I think). Is that the preferred method? > > > ORACLE, NON-STANDARDS COMPLIANT CODE > FROM fscd_client c, fscd_county x, fscd_state s, fscd_survey u, > fscd_post > p > WHERE c.countyid = x.countyid > AND x.stateid = s.stateid > AND c.clientid = u.clientid (+) > AND c.clientid = p.clientid (+) > AND c.active = 1 > AND p.active (+) = 1 > AND u.active (+) = 1 <!--- This part here says that if a value > exists, it should be 1 ---> > > MYSQL VERSION > FROM (fscd_county x JOIN fscd_client c ON (x.countyid = c.countyid) > JOIN fscd_state s on (s.stateid = x.stateid)) > LEFT OUTER JOIN fscd_survey u ON c.clientid = u.clientid > LEFT OUTER JOIN fscd_post p ON c.clientid = p.clientid > WHERE x.active = 1 > AND c.active = 1 > AND (p.active = 1 OR p.active is null) > AND (u.active = 1 OR u.active is null) <!--- Is this the preferred > method > in Mysql? ---> > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Message: http://www.houseoffusion.com/lists.cfm/link=i:4:237814 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
