Использование отличного, регистра и порядка в одном запросе - PullRequest
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Использование отличного, регистра и порядка в одном запросе

0 голосов
/ 21 ноября 2019

У меня есть требования извлекать мобильные номера пользователей из базы данных без дубликатов, поэтому для этого я использую отдельное ключевое слово.

Также не все мобильные номера имеют хороший формат, поэтомуЯ использую Case для форматирования чисел.

Наконец, я хочу получить последние 500 номеров мобильных телефонов, поэтому я хотел заказать их по Order by ID desc, но он показывает 

ORDER BY items must appear in the select list if SELECT DISTINCT is specified.

ниже мой запрос 

 select distinct top 500  case 

                     when len(PhoneNumber) = 13 And phoneNumber  like '+311%' then replace(PhoneNumber, '+311', '0')
                     when len(PhoneNumber) = 13 And phoneNumber  like '311-%' then replace(PhoneNumber, '311-', '0')

                     when len(PhoneNumber) = 13 And phoneNumber  like '0311%' then stuff(PhoneNumber, 1, 4 , 0 )

                     when len(PhoneNumber) = 14 And phoneNumber  like '00311%'then stuff(PhoneNumber, 1, 5 ,'0')
                     when len(PhoneNumber) = 14 And phoneNumber  like '00311%' then stuff(PhoneNumber, 1, 4 ,'0')


                     when len(PhoneNumber) = 12 And phoneNumber  like '311%' then stuff(PhoneNumber, 1 , 3 , '0')
                     when len(PhoneNumber) = 12 then REPLACE (PhoneNumber, '-', '')

                     when len(PhoneNumber) = 11 And phoneNumber  like '00%' then Stuff(PhoneNumber, 1, 2 , '0')
                     else PhoneNumber
                end 


from users where  cityid = 1 and statusid = 1  and  (len(PhoneNumber) >= 10 And len(PhoneNumber) <= 14) 
and PhoneNumber not like '"%' and PhoneNumber not like '+311-%' and PhoneNumber not like '01%'
and PhoneNumber  like '0%'

Order by id

ОБНОВЛЕНИЕ

Как и предполагал Металл, я использую row_number (), и разделение по нему дает мне один номер мобильного телефона, который не является правильным результатом 

select top 500000 Mobile
from 
    (select 
        row_number() over (partition by PhoneNumber order by id desc) rn,
        case 
        when len(PhoneNumber) = 13 And phoneNumber  like '+966%' then replace(PhoneNumber, '+966', '0')
        when len(PhoneNumber) = 13 And phoneNumber  like '966-%' then replace(PhoneNumber, '966-', '0')
        when len(PhoneNumber) = 13 And phoneNumber  like '0966%' then stuff(PhoneNumber, 1, 4 , 0 )
        when len(PhoneNumber) = 14 And phoneNumber  like '00966%'then stuff(PhoneNumber, 1, 5 ,'0')
        when len(PhoneNumber) = 14 And phoneNumber  like '0096%' then stuff(PhoneNumber, 1, 4 ,'0')
        when len(PhoneNumber) = 12 And phoneNumber  like '966%' then stuff(PhoneNumber, 1 , 3 , '0')
        when len(PhoneNumber) = 12 then REPLACE (PhoneNumber, '-', '')
        when len(PhoneNumber) = 11 And phoneNumber  like '00%' then Stuff(PhoneNumber, 1, 2 , '0')
        else PhoneNumber
        end  as Mobile
    from consigneeDetail 
    where  cityid = 1 and statusid = 1  and  (len(PhoneNumber) >= 10 And len(PhoneNumber) <= 14) 
            and PhoneNumber not like '"%' and PhoneNumber not like '+966-%' and PhoneNumber not like '01%'
            and PhoneNumber  like '0%') t1
where rn = 1

Ответы [ 2 ]

1 голос
/ 21 ноября 2019

вместо этого используйте subquery, затем row_number() для получения различных значений. 

select top 500 t2.col1 from (
    select row_number() over (partition by t1.col1 order by id desc) rn, t1.col1
    from 
        (select         
            id,
            case 
            when len(PhoneNumber) = 13 And phoneNumber  like '+311%' then replace(PhoneNumber, '+311', '0')
            when len(PhoneNumber) = 13 And phoneNumber  like '311-%' then replace(PhoneNumber, '311-', '0')
            when len(PhoneNumber) = 13 And phoneNumber  like '0311%' then stuff(PhoneNumber, 1, 4 , 0 )
            when len(PhoneNumber) = 14 And phoneNumber  like '00311%'then stuff(PhoneNumber, 1, 5 ,'0')
            when len(PhoneNumber) = 14 And phoneNumber  like '00311%' then stuff(PhoneNumber, 1, 4 ,'0')
            when len(PhoneNumber) = 12 And phoneNumber  like '311%' then stuff(PhoneNumber, 1 , 3 , '0')
            when len(PhoneNumber) = 12 then REPLACE (PhoneNumber, '-', '')
            when len(PhoneNumber) = 11 And phoneNumber  like '00%' then Stuff(PhoneNumber, 1, 2 , '0')
            else PhoneNumber
            end  as col1
        from users 
        where  cityid = 1 and statusid = 1  and  (len(PhoneNumber) >= 10 And len(PhoneNumber) <= 14) 
                and PhoneNumber not like '"%' and PhoneNumber not like '+311-%' and PhoneNumber not like '01%'
                and PhoneNumber  like '0%') t1
    ) t2 
where t2.rn = 1
0 голосов
/ 21 ноября 2019 
SELECT DISTINCT phonenumber 
FROM   (SELECT id, 
               CASE 
                 WHEN Len(phonenumber) = 13 
                      AND phonenumber LIKE '+311%' THEN 
                 REPLACE(phonenumber, '+311', '0') 
                 WHEN Len(phonenumber) = 13 
                      AND phonenumber LIKE '311-%' THEN 
                 REPLACE(phonenumber, '311-', '0') 
                 WHEN Len(phonenumber) = 13 
                      AND phonenumber LIKE '0311%' THEN 
                 Stuff(phonenumber, 1, 4, 0) 
                 WHEN Len(phonenumber) = 14 
                      AND phonenumber LIKE '00311%'THEN 
                 Stuff(phonenumber, 1, 5, '0') 
                 WHEN Len(phonenumber) = 14 
                      AND phonenumber LIKE '00311%' THEN 
                 Stuff(phonenumber, 1, 4, '0') 
                 WHEN Len(phonenumber) = 12 
                      AND phonenumber LIKE '311%' THEN 
                 Stuff(phonenumber, 1, 3, '0') 
                 WHEN Len(phonenumber) = 12 THEN REPLACE (phonenumber, '-', '') 
                 WHEN Len(phonenumber) = 11 
                      AND phonenumber LIKE '00%' THEN 
                 Stuff(phonenumber, 1, 2, '0') 
                 ELSE phonenumber 
               end AS phonenumber 
        FROM   users 
        WHERE  cityid = 1 
               AND statusid = 1 
               AND ( Len(phonenumber) >= 10 
                     AND Len(phonenumber) <= 14 ) 
               AND phonenumber NOT LIKE '"%' 
               AND phonenumber NOT LIKE '+311-%' 
               AND phonenumber NOT LIKE '01%' 
               AND phonenumber LIKE '0%' 
        ORDER  BY id) 
LIMIT  500
...