oracle if else

哈哈

if  length(batcode)=20 then

 
   sapbatch :=substr(batcode,2,1) || substr(batcode,11,1) || substr(batcode,5,2)||
  
  CHR(to_number(substr(batcode,7,2)) + 64) 
 
 || substr(batcode,9,2)+ substr(batcode,12,1) || substr(batcode,13,2);

elsif  length(batcode)=19 then

   sapbatch :=substr(batcode,2,1) || substr(batcode,11,1) || substr(batcode,5,2) ||
  
 CHR(to_number(substr(batcode,7,2)) + 64) 
 
 || substr(batcode,9,2)|| substr(batcode,12,1) ||substr(batcode,13,2);

elsif  length(batcode) =18 then

   sapbatch :=substr(batcode,2,1) || substr(batcode,11,1)||substr(batcode,5,2)|| 
  
    CHR(to_number(substr(batcode,7,2)) + 64)
 
   || substr(batcode,9,2)|| substr(batcode,12,1) ||substr(batcode,13,2);
  
elsif  length(batcode)=22 then

   sapbatch :=substr(batcode,2,1) || substr(batcode,11,1)|| substr(batcode,5,2)|| 
   
  
 CHR(to_number(substr(batcode,7,2)) + 64)
 
  || substr(batcode,9,2)+ substr(batcode,12,1) || substr(batcode,13,2);

elsif  length(batcode)=21 then

   sapbatch :=substr(batcode,2,1) || substr(batcode,11,1)|| substr(batcode,5,2)|| 
  
   CHR(to_number(substr(batcode,7,2)) + 64)
|| substr(batcode,9,2)|| substr(batcode,12,1) ||substr(batcode,13,2);
else
  
   sapbatch :=substr(batcode,2,1) || substr(batcode,11,1)|| substr(batcode,5,2)|| 
  
  CHR(to_number(substr(batcode,7,2)) + 64)
  
  || substr(batcode,9,2)+ substr(batcode,13,1) +'01';

 end if;

elsif  长这样，看清楚了吗