如何消除 TSQL 中的 NULL 字段

You can see that both Averitte and Bass profile names have one record with NULL race, ethnicity, religion. How do I eliminate these rows (rows 2 and 4)?

这是我目前的查询:

select distinct
        gp.group_profile_id,
        gp.profile_name,
        gp.license_number,
        gp.is_accepting,
        case when gp.is_accepting = 1 then 'Yes'
             when gp.is_accepting = 0 then 'No '
                        end as is_accepting_placement,
        mo.profile_name as managing_office,
        regions.[region_description] as region,     
        pv.vendor_name,
        pv.id as vendor_id,
        at.description as applicant_type,
        dbo.GetGroupAddress(gp.group_profile_id, null, 0) as [Office Address],
        gsv.status_description,
        ri.[description] as race,
        ethnicity.description as ethnicity_desc,
        religion.description as religion
from  group_profile gp With (NoLock)
    --Office Information
        inner join group_profile_type gpt With (NoLock) on gp.group_profile_type_id = gpt.group_profile_type_id and
                    gpt.type_code = 'FOSTERHOME' and gp.agency_id = @agency_id and gp.is_deleted = 0
        inner join group_profile mo With (NoLock) on gp.managing_office_id = mo.group_profile_id
        left outer join payor_vendor pv With (NoLock) on gp.payor_vendor_id = pv.payor_vendor_id
        left outer join applicant_type at With (NoLock) on gp.applicant_type_id = at.applicant_type_id and at.is_foster_home = 1
        inner join group_status_view gsv With (NoLock) on gp.group_profile_id = gsv.group_profile_id and gsv.status_value = 'OPEN' and gsv.effective_date =  
                            (Select max(b.effective_date) from  group_status_view b  With (NoLock)
                            where gp.group_profile_id = b.group_profile_id)
        left outer join regions With (NoLock) on isnull(mo.regions_id, gp.regions_id) = regions.regions_id
left join enrollment en on en.group_profile_id = gp.group_profile_id
        join event_log el on el.event_log_id = en.event_log_id
    left join people client on client.people_id = el.people_id
    left join   race With (NoLock) on el.people_id = race.people_id
    left join group_profile_race gpr with (nolock) on gpr.race_info_id = race.race_info_id
    left join race_info ri with (nolock) on ri.race_info_id = gpr.race_info_id
    left join ethnicity With(NoLock) On client.ethnicity = ethnicity.ethnicity_id
    left join religion on client.religion = religion.religion_id

推荐答案

尝试按 group_profile_id 分组，并选择每隔一列的 MAX().MAX 将选择每个重复条目的非空值(如果存在一个，或者如果存在多个，则为最大值).尽管乍一看更有效的解决方案将涉及整理数据中的其他 NULL 行.