web-dev-qa-db-ja.com

Selectステートメントを使用して列を非表示にするにはどうすればよいですか？

declare @bid varchar(4) = '1007'    

select sr.release_date,
    sr.customer_id,
    sr.customer_name,
    sr.item_id,
    sr.item_desc,
    sr.order_no,
    sr.qty_on_hand,
    sr.release_qty,
    sr.qty_after_released,
    sr.extended_sell,
    sr.enough,
    sr.route_description

from sri_schedule_releases_view as sr

where 
    ((case 
        when sr.route_code in ('pm 01','pm 03','pm 05') then (select users.contact_id from users where users.delete_flag = 'n' and users.name = 'John')
    end = @bid) or 
    (case 
        when sr.route_code in ('pm 01','pm 03','pm 05') then (select users.contact_id from users where users.delete_flag = 'n' and users.name = 'Jane')
    end = @bid) or
    (case 
        when sr.route_code in ('pm 01','pm 03','pm 05') then (select users.contact_id from users where users.delete_flag = 'n' and users.name = 'Doe')
    end = @bid) or
    (sr.contact_id = @bid))

order by sr.item_id asc

このクエリは正常に機能します。しかし、sr.route_descriptionPM 01、PM およびPM 05を持っている人のみsr.route_codeを表示したいと思います。

これを行う可能性はありますか？

sql-serversql-server-2014ssms
2
Marin Mohanadas

私は解決策を見つけ、それは期待通りに機能しました

declare @bid varchar(4) = '1007'    

declare @pm1 varchar(5) = (select users.contact_id from users where users.delete_flag = 'n' and users.name = 'John')
declare @pm3 varchar(5) = (select users.contact_id from users where users.delete_flag = 'n' and users.name = 'Jane')
declare @pm5 varchar(5) = (select users.contact_id from users where users.delete_flag = 'n' and users.name = 'Doe')

if @bid in (@pm1,@pm3,@pm5) 
begin
select sr.release_date,
    sr.customer_id,
    sr.customer_name,
    sr.item_id,
    sr.item_desc,
    sr.order_no,
    sr.qty_on_hand,
    sr.release_qty,
    sr.qty_after_released as available_qty,
    sr.extended_sell as ext_sell,
    sr.enough,
    sr.route_description

from sri_schedule_releases_view as sr

where 
   ((case 
      when sr.route_code in ('pm 01','pm 03','pm 05') then @pm1
   end = @bid) or 
   (case 
      when sr.route_code in ('pm 01','pm 03','pm 05') then @pm3
   end =@bid) or
   (case 
      when sr.route_code in ('pm 01','pm 03','pm 05') then @pm5
   end = @bid) or
   (sr.contact_id = @bid))
end
else
begin
select sr.release_date,
    sr.customer_id,
    sr.customer_name,
    sr.item_id,
    sr.item_desc,
    sr.order_no,
    sr.qty_on_hand,
    sr.release_qty,
    sr.qty_after_released as available_qty,
    sr.extended_sell as ext_sell,
    sr.enough

from sri_schedule_releases_view as sr

where 
   ((case 
      when sr.route_code in ('pm 01','pm 03','pm 05') then @pm1
   end = @bid) or 
   (case 
      when sr.route_code in ('pm 01','pm 03','pm 05') then @pm3
   end =@bid) or
   (case 
      when sr.route_code in ('pm 01','pm 03','pm 05') then @pm5
   end = @bid) or
   (sr.contact_id = @bid))
end
1
Marin Mohanadas

caseステートメントをselectリストに追加するだけです。

declare @bid varchar(4) = '1007'    

select sr.release_date,
    sr.customer_id,
    sr.customer_name,
    sr.item_id,
    sr.item_desc,
    sr.order_no,
    sr.qty_on_hand,
    sr.release_qty,
    sr.qty_after_released,
    sr.extended_sell,
    sr.enough,
    case when sr.route_code in ('pm 01','pm 03','pm 05') then sr.route_description else '' end as route_description
from sri_schedule_releases_view as sr
where 
    ((case 
        when sr.route_code in ('pm 01','pm 03','pm 05') then (select users.contact_id from users where users.delete_flag = 'n' and users.name = 'John')
    end = @bid) or 
    (case 
        when sr.route_code in ('pm 01','pm 03','pm 05') then (select users.contact_id from users where users.delete_flag = 'n' and users.name = 'Jane')
    end = @bid) or
    (case 
        when sr.route_code in ('pm 01','pm 03','pm 05') then (select users.contact_id from users where users.delete_flag = 'n' and users.name = 'Doe')
    end = @bid) or
    (sr.contact_id = @bid))
order by sr.item_id asc
2
Philᵀᴹ

データが存在する場合にのみ列を表示したい場合は、IFステートメント内に2つの可能性がある関数を作成します。

IFデータが存在する（通常のクエリを実行する）ELSE
（同じクエリをコピーしますが、空の列はありません）

0
Jhunter1