我在IS PLS-00103上有错误：遇到符号“IS”

Question

create or replace procedure seqn (sname IN seq.seqname%type , 

startv IN seq.startval%type , 

incby IN seq.incrementby%type ,

 maxi IN seq.maxilimit%type );

     IS
s_count integer ;

    begin
    select count(*)
    into s_count
     from sequence;
     where seqname := sname ;
if s_count := 0
then
    insert into seq
    values(sname,startv,incby,maxi);
end if;

    end seqn ;
    /

Answer 1

我在您的程序中发现了四个错误。

首先，从以下行的末尾删除两个分号：

 maxi IN seq.maxilimit%type );

     from sequence;

其次，请勿使用:=来比较以下两行中的值，而是使用=。

     where seqname := sname ;
if s_count := 0