关于oracle PL/SQL存储过程 PLS-00905 object is invalid，statement ignored问题的解决

昨天在学习oracle存储过程的时候，写了一个存储过程的demo，语句是这样的：

 

create or replace procedure raisesalary(pname in varchar2(20))
as
    psssal testdelete.testid%type;
begin
    select testid into psssal from testdelete where testname=pname;
    update testdelete set testid=(testid+10000) where testname=pname;
    dbms_output.put_line('the original salary'||psssal||'    after the raise'||(psssal+1000));
end;
/

想法是通过表的varchar(20)类型字段找到number类型字段，然后更改number类型的字段。表结构如下：

create table testdelete
(
    testid   number,
    testname varchar2(20)
)

将存储过程调用，出现结果如下：

connected to:
oracle database 11g enterprise edition release 11.2.0.1.0 - 64bit production
with the partitioning, olap, data mining and real application testing options

create or replace procedure raisesalary(pname in varchar2(20))
  2  as
  3      psssal testdelete.testid%type;
  4  begin
  5      select testid into psssal from testdelete where testname=pname;
    update testdelete set testid=(testid+10000) where testname=pname;
    dbms_output.put_line('the original salary'||psssal||'    after the raise'||(psssal+1000));
  8  end;
  9  /

warning: procedure created with compilation errors.

set serveroutput on;
begin
    raisesalary('name2091');
    commit;
end;
sql>   2    3    4    5  /
    raisesalary('name2091');
    *
error at line 2:
ora-06550: line 2, column 5:
pls-00905: object test.raisesalary is invalid
ora-06550: line 2, column 5:
pl/sql: statement ignored


sql> 

出现错误 ：该存储过程无效。

what？明明刚刚建立的存储过程啊。然后我就翻到上面创建完之后的一句话，warning: procedure created with compilation errors. 翻译过来应该是：创建的过程带有编译的错误。

也就是说创建存储过程有错误，那么ok，找找存储过程看看哪错了。

emmmm，回头看了半天，就这么几行，死活没看出到底哪出问题了，没办法，baidu，google。

后来在*看到了这个，原文链接如下：

https://*.com/questions/48497140/oracle-sql-stored-procedure-object-invalid

楼主在里面发现了这么一句话：

you can’t give a size or precision restriction for the data type of a formal parameter to a function or procedure, so number(10,0) should just be number;

也就是说，你不能给函数和存储过程的参数指定数据的大小或者精度。ok，回头看看我这个参数，懂了，varchar2(20)是明显的给参数的类型指定精度了。需要改成varchar2这种类型。

或者直接写   表名.字段%type 也是可以的（亲测） 。

更改完之后运行如下：

 

create or replace procedure raisesalary(pname in varchar)
  2  as
  3      psssal testdelete.testid%type;
  4  begin
  5      select testid into psssal from testdelete where testname=pname;
    update testdelete set testid=(testid+10000) where testname=pname;
    dbms_output.put_line('the original salary'||psssal||'    after the raise'||(psssal+1000));
  8  end;
  9  /

procedure created.

begin
    raisesalary('name2091');
  3      commit;
  4  end;
  5  /
the original salary2091    after the raise3091

pl/sql procedure successfully completed.

sql> 

 

 

改完之后明确看到已经没有warning了，出现的是   procedure created.

运行成功！问题解决。