Question

我有这些错误 - PLS-00679：在语句前/后部分中不允许触发绑定 PLS-00201：必须声明标识符“DBMS_OUT.PUT_LINE” - 但无法找到问题。这些是涉及的脚本 -

create or replace trigger hiTk
for insert or update on lending
COMPOUND TRIGGER
--declare
L_Date date;
subtype copy_booksRec is lending%ROWTYPE;
type copied_bks is table of copy_booksRec;
cbks copied_bks := copied_bks();

before each row is 
begin
  cbks.extend;
  cbks(cbks.last).cb_num := :new.cb_num;
  cbks(cbks.last).sb_num := :new.sb_num;
--  cbks.last(i).date_L := :new.date_L;
end before each row;

before statement is
begin 
  for i in cbks.first .. cbks.last loop
    select count(date_L) into L_Date from lending where sb_num = cbks(i).sb_num and date_L = :new.date_L;

    if (Sysdate = :new.date_L) then
      dbms_out.put_line('You can only make ONE LOAN at a time! You have already loaned a book on ' || L_Date);
    else
      cbks.delete;
    end if;
  end loop;
  FORALL i IN cbks.first .. cbks.last
      insert into lending values cbks(i);
    cbks.delete;
  end before statement;
end hiTk;
/
show errors

Answer 1

这两个错误都准确地告诉你出了什么问题：

PLS-00679：触发器绑定不允许在声明前/后部分

但你有：

before statement is
begin 
  for i in cbks.first .. cbks.last loop
    select count(date_L) into L_Date from lending where sb_num = cbks(i).sb_num 
    and date_L = :new.date_L;
    --           ^^^^ THIS IS A TRIGGER BIND, NOT ALLOWED IN BEFORE STATEMENT

PLS-00201：必须声明标识符“DBMS_OUT.PUT_LINE”

没有提供名为DBMS_OUT的软件包，它名为DBMS_OUTPUT。

错误 - PLS-00679：触发器在前/后语句部分中不允许绑定

1 个答案: