必须声明错误PLS-00201标识符

Question

所以我一直有这个错误，我不知道发生了什么。我在谷歌上搜索了一下，读了一些关于这个错误的问题，但什么都没用。我只想运行它，这样我就可以完成我的项目。

create or replace procedure LOWINVENTORY is

--Variables
ID number;
itemNamed char(15);
description char(20);
startQty number;

--Define inventory item cursor
cursor nextItem is
select inventory.itemID, inventory.itemName, inventory.description, inventory.startQty;
from inventory
where inventory.startQty < 5;

begin
open nextItem;
fetch netxtItem into ID, itemNamed, description, startQty;
if nextItem%notfound then
    dbms_output.put_line('No items in need of reordering.');
else
    dbms_output.put_line('*********************');
    dbms_output.put_line('++Inventory Report++');
    dbms_output.put_line('*********************');
    dbms_output.put_line('Item Name---ID------Description----------Quantity');
    loop
        dbms_output.put_line(itemNamed||'-'||ID||'-'||description||'-'||startQty);
        fetch netxtItem into ID, itemNamed, description, startQty;
        if nextItem%notfound then
            dbms_output.put_line('************END REPORT*************');
            exit when nextItem%notfound;
    end loop;
end lowInventory;

错误：开始低库存；结束；*第1行错误：ORA-06550：第1行，第9列：PLS-00201：标识符“LOWINVENTORY”必须声明ORA-06550：第1行，第7列：PL/SQL：忽略语句

编辑：

INSERT INTO inventory(itemID, itemLocation, itemName, description, typicalPrice, startQty)
VALUES(24548576, 'toolbox1', 'wrench', 'turns bolts', 14.00, 6);
INSERT INTO inventory(itemID, itemLocation, itemName, description, typicalPrice, startQty)
VALUES(83742345, 'toolbox1', 'pliers', 'grabs stuff', 11.00, 4);
INSERT INTO inventory(itemID, itemLocation, itemName, description, typicalPrice, startQty)
VALUES(39287426, 'chest2', 'jigsaw', 'cuts stuff', 28.00, 3);
INSERT INTO inventory(itemID, itemLocation, itemName, description, typicalPrice, startQty)
VALUES(48927349, 'chest1', 'blowtorch', 'torches stuff', 330.00, 2);
INSERT INTO inventory(itemID, itemLocation, itemName, description, typicalPrice, startQty)
VALUES(85463455, 'bench3', 'oil filter', 'filters stuff', 16.00, 20);

表创建：

create table inventory
    (
        itemID number(8) not null primary key constraint lengthCHK8 check(length(itemID)=8),
        itemLocation varchar2(10), 
        itemName varchar2(12) not null,
        description varchar2(20),
        typicalPrice decimal(7,2) not null constraint notNeg2 check(typicalPrice >=0),
        startQty number(4) not null constraint notNeg5 check(startQty >=0)
    );

Answer 1

首先，您的代码充满了愚蠢的错误，

select inventory.itemID, inventory.itemName, 
inventory.description, inventory.startQty;   --> semicolan here, the statment doesnt end
from inventory
where inventory.startQty < 5;

第二

cursor nextItem is --> using nextItem as name in cursor but "netxtItem" while opening it,  a typo

第三，

如果在else部分内，则没有结束，循环

这是已经编译的过程，我创建了清单表，其中只有4列用于编译过程

SQL> create or replace procedure LOWINVENTORY is
  2
  3  --Variables
  4  ID number;
  5  itemNamed char(15);
  6  description char(20);
  7  startQty number;
  8
  9  --Define inventory item cursor
 10  cursor nextItem is
 11  select inventory.itemID, inventory.itemName, inventory.description, inventory.startQty
 12  from inventory
 13  where inventory.startQty < 5;
 14
 15  begin
 16  open nextItem;
 17  fetch nextItem into ID, itemNamed, description, startQty;
 18  if nextItem%notfound then
 19      dbms_output.put_line('No items in need of reordering.');
 20  else
 21      dbms_output.put_line('*********************');
 22      dbms_output.put_line('++Inventory Report++');
 23      dbms_output.put_line('*********************');
 24      dbms_output.put_line('Item Name---ID------Description----------Quantity');
 25      loop
 26          dbms_output.put_line(itemNamed||'-'||ID||'-'||description||'-'||startQty);
 27          fetch nextItem into ID, itemNamed, description, startQty;
 28          if nextItem%notfound then
 29              dbms_output.put_line('************END REPORT*************');
 30              exit when nextItem%notfound;
 31             end if;
 32             end loop;
 33  end if;
 34
 35  end lowInventory;
 36  /

Procedure created.

SQL>

编辑

SQL> insert into inventory (itemid,itemname,description,startqty) values (1,'abc','descp1',1) ;

1 row created.

SQL> insert into inventory (itemid,itemname,description,startqty) values (2,'abcd','descp2',1) ;

1 row created.

SQL> set serveroutput on;


SQL> exec lowInventory;
*********************
++Inventory Report++
*********************
Item Name---ID------Description----------Quantity
abc            -1-descp1              -1
abcd           -2-descp2              -1
************END REPORT*************

PL/SQL procedure successfully completed.

SQL>

编辑2

根据您提供的数据

SQL> exec lowinventory;
*********************
++Inventory Report++
*********************
Item Name---ID------Description----------Quantity

jigsaw         -39287426-cuts stuff          -3
pliers         -83742345-grabs stuff         -4
jigsaw         -39287426-cuts stuff          -3
blowtorch      -48927349-torches stuff       -2
************END REPORT*************

PL/SQL procedure successfully completed.