Displaying 1 result from an estimated 1 matches for "calc_survival_wheelchair".
2006 Oct 17
2
RODBC and NULL values
...t. I have
tried various combinations of NULL, NA and "". Forgive my awkward SQL.
> channel = odbcConnect("ataxia", uid="mark")
> disease = sqlQuery(channel, "select calc_survival_unilateral_support
as unlateral, calc_survival_bilateral_support as bilateral,
calc_survival_wheelchair as wheelchair,calc_survival_death as death,
calc_follow_up as followup, has_family_history_ataxia as familial from
clinical, patient where clinical.patient_fk = patient_id and excluded=0
and calc_walking_disability_valid=1")
> disease # and show results
127 3 3 18...