oracle函数实例

http://www.itpub.net/thread-763392-1-1.html#

 

create or replace function isRebut(exection_ in varchar2)
return boolean is
rebutnumber number := 0;
begin
 select count(*) into rebutnumber from jbpm4_hist_task t ;
 if(rebutnumber = 1)
 then
     return true;
 else
     return false;
 end if;
end;

 

注意：