select - SQL Server : case without a null return -

-

i have following sql server code:

declare @n_count_pr int, @n_count_err int, @v_out_pr varchar(100);  begin    set @n_count_pr = (select count (*) table_pr)    set @n_count_err = (select count (*) table_err)     if (@n_count_err > 0 , @n_count_pr > 0)         set @v_out_pr = 'output 1'    else if (@n_count_err > 0 , @n_count_pr = 0)        set @v_out_pr = 'output 2'     print @v_out_pr end;

it works fine, need different structure.

i need simple select same thing.

can me?

in procedure above have only 2 outputs nothing else. if there other output other output 1 , output 2 should discarded.

it's like:

if = output 1 else if = b output 2

but don't have else, every other option i=c or = d, don't care. want discard options.

if did want other options this:

   if (@n_count_err > 0 , @n_count_pr > 0)         set @v_out_pr = 'output 1'    else if (@n_count_err > 0 , @n_count_pr = 0)        set @v_out_pr = 'output 2'    else       set @v_out_pr = 'any other option'

--found solution :)

select bit       (select case          when  (select count (*) table_err) > 0 , (select count (*) table_pr) > 0 'output 1'         when  (select count (*) table_err) > 0 , (select count (*) table_pr) = 0 'output 2'         else null         end bit) mytable         bit not null

try :

select case          when  (select count (*) table_err) > 0 , (select count (*) table_pr) > 0 'output 1'         when  (select count (*) table_err) > 0 , (select count (*) table_pr) = 0 'output 2'         else ''         end

Comments

Post a Comment

Popular posts from this blog

matlab - error with cyclic autocorrelation function -

-
Image
i'm trying code cyclic autocorrelation function in matlab follows: t=0:(n-1); t=t*te; i_alpha=0; tau=-n2*te:te:n2*te; alpha=-1/2:1/n:1/2; ryy_cl=zeros(length(alpha),length(tau)); alpha=alpha/te ind_tau=0; i_alpha=i_alpha+1; k=tau ind_tau=ind_tau+1; if k>0 % ryy_cl(i_alpha,ind_tau)=1/length(sig_bin_syl_mod(1:end- k))*sum((sig_bin_syl_mod(1:end-k)).*sig_bin_syl_mod(k+1:end)).*exp(1i*2*pi*alpha*t(1+k:length(sig_bin_syl_mod(1:end)))); ryy_cl(i_alpha,ind_tau)=(1/n)*sum((sig_bin_syl_mod(1:end-k)).*sig_bin_syl_mod(k+1:end)).*exp(-1i*2*pi*alpha*t(1:end-k)); else ryy_cl(i_alpha,ind_tau)=(1/n)*sum((sig_bin_syl_mod(1-k:end)).*sig_bin_syl_mod(1:end+k)).*exp(-1i*2*pi*alpha*t(1-k:end)); end end end i'm getting errors, , doesn't show expecting. according below formulae, how can fix it? the code provided incomplete, difficult confidently reproduce error. in particular, haven't de...
Read more

django - (fields.E300) Field defines a relation with model 'AbstractEmailUser' which is either not installed, or is abstract -

-
i trying create customuser django project email username , add radio button truck , company. in registration process email-id registered per truck or company. mentioned radio button 'tag' , add manytomany field tag in emailuser model. when makemigrations, raising error : (fields.e300) field defines relation model 'abstractemailuser' either not installed, or abstract. i quite new django , not sure whether have created correct code wants. please me solving this. here code, models.py: import django django.contrib.auth.models import ( abstractbaseuser, baseusermanager, permissionsmixin) django.core.mail import send_mail django.db import models django.utils import timezone django.utils.translation import ugettext_lazy _ class emailusermanager(baseusermanager): """custom manager emailuser.""" def _create_user(self, email, password, is_staff, is_superuser, **extra_fields): """create , save emailus...
Read more

c# - What is a good .Net RefEdit control to use with ExcelDna? -

-
i using exceldna , c# build suite of tools. part of forms i'd want user select cells/ranges workbook. i've got application.inputbox route working...but doesn't cool... i haven't read many things excel's refedit control, , see many have in past written workarounds, in (shudder) vba or vb.net. however, none of these seem recent... best approach/control refedit functionality on form run via exceldna (if applicable)? the refedit sample project of github explores different ways of dealing threading when showing form excel add-in, main issue making refedit control .net add-in. check page links various other implementations: https://github.com/excel-dna/exceldna/wiki/links-about-refedit
Read more