Question

嗨，我已经创建了一个存储过程。当我使用它的时候speednte_no = 5 purun_kod = 2,3,1和ppolice_no = 6可以正常工作，但是当我不使用purun_kod的情况下使用pagente_no = 5且ppolice_no = 6不能正常工作时，我的意思是没有错误，只是无法打开响应。谢谢。

function police_ara(pacente_no      in musteri_rol.musteri_rol_kod%type,
                      purun_kod       in police.urun_kod%type,
                      ppolice_no      in police.police_no%type,) return sys_refcursor is
    vret sys_refcursor;
    v_urun_kod varchar(1000);      
  begin
    v_urun_kod := purun_kod;
  open vret for
      with policeler as
       (select distinct
                        ph.police_hareket_id ph_police_hareket_id,
                        p.urun_kod,
                        (select max(pho.police_hareket_id) from police_hareket_otr pho
            where pho.police_hareket_id = ph.police_hareket_id
           and (pho.durum_kod1 = 0 or pho.durum_kod2 = 0 or pho.durum_kod3 = 0 or pho.durum_kod4 = 0)) pho_police_hareket_id,
                        ph.police_id,

         from police p

         inner join police_hareket ph
            on ph.police_id = p.police_id
           and (ph.ekbelge_no>0 or (select count(1)
                  from police_kotasyon pk
                 where pk.police_hareket_id = ph.police_hareket_id 
                   and pk.kotasyon_seviyesi = 3
                   and rownum = 1)>0)
            on (mr.musteri_rol_id = pa.acente_id)
          left join ekbelge ek
            on (ek.ekbelge_kod = ph.ekbelge_kod)
          join (select regexp_substr(v_urun_kod, '[^,]+', 1, level) urun_kod
                  from dual
                  connect by level <= regexp_count(v_urun_kod, ',') + 1
                 ) x on p.urun_kod = x.urun_kod 
         where   (p.police_no = ppolice_no or ppolice_no is null)
             and (p.pacente_no = pacente_no or pacente_no is null)
           --and (p.urun_kod = purun_kod or purun_kod is null) ////THİS LİNEEE\\\\
      select 
             urun_kod,
             police_no,          
        from policeler
        left join police_musteri pm_sg
          on pm_sg.police_hareket_id = ph_police_hareket_id
         and pm_sg.rol_id = pck_const_rol.sigortali
         and pm_sg.sira_no = 1
        left join musteri m_sg
          on (m_sg.musteri_id = pm_sg.musteri_id)
    return vret;
  end;

Answer 1

这是因为您在内部联接中使用了该值purun_kod：

 ...
 join (select regexp_substr(v_urun_kod, '[^,]+', 1, level) urun_kod
                  from dual
                  connect by level <= regexp_count(v_urun_kod, ',') + 1
                 ) x on p.urun_kod = x.urun_kod 
 ...

如果不提供值，则内部联接将失败。

更新1

尝试更改与下一个的连接：

 ...
 join (select regexp_substr(v_urun_kod, '[^,]+', 1, level) urun_kod
              from dual
              connect by level <= regexp_count(v_urun_kod, ',') + 1
             ) x on p.urun_kod = nvl(x.urun_kod,p.urun_kod)
 ...

我放置了一个NVL，因此，如果X.URUN_KOD列为空，则什么都不会发生。

在plsql中参数为null时使用

1 个答案: