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IsEmptyString - Microsoft SQL / MS SQL Server

W artykule bhcol1$r42$news.tpi.pl, niejaki(a): Miroo_news z adresu <poczta.fm> napisał(a):  I need that to change such statement: CASE WHEN ISNULL( RTRIM(x.VARCHARFIELD), '') <> '') THEN x.VARCHARFIELD END to something more pretty :) and readable Regards, Miroo...

  1. #1

    Default Re: IsEmptyString

    W artykule bhcol1$r42$news.tpi.pl,
    niejaki(a): Miroo_news z adresu <poczta.fm> napisał(a): 

    I need that to change such statement:
    CASE
    WHEN ISNULL( RTRIM(x.VARCHARFIELD), '') <> '') THEN x.VARCHARFIELD
    END
    to something more pretty :) and readable

    Regards,
    Miroo


    Miroo_news Guest

  2. #2

    Default Re: IsEmptyString

    select nullif(n,'') as [EMPTY], isnull(nullif(n,''),'def') as [Subs]
    from(select 'abc' union all select '' union all select ' ')x(n)

    you could also use case/when expression...

    select n, case when len(n)>0 then 'true' else 'false' end as [IIF]
    from(select 'abc' union all select '' union all select ' ')x(n)

    --
    -oj
    RAC v2.2 & QALite!
    http://www.rac4sql.net



    "Miroo_news" <poczta.fm> wrote in message
    news:bhcol1$r42$news.tpi.pl... 


    oj Guest

  3. #3

    Default Re: IsEmptyString

    Użytkownik "oj" <com> napisał w wiadomości
    news:#phx.gbl... 

    Thank you, I knew there must be something like NULLIF
    but I couldn't find it!
    It's very useful.

    Regards,
    Miroo

    Miroo_news Guest

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