Question

CREATE or replace PROCEDURE abc as 

ret number;
msg varchar2(1000);
Begin
execute immediate 'truncate table OBSPROJ';
execute  immediate 'exec obsproj_full_rebuild(:ret,:msg)';

End abc;

尝试执行以下查询时会导致“查询无效”

我认为问题在于第二次执行查询。

Answer 1

请参阅以下内容：内联阅读评论。

CREATE OR REPLACE PROCEDURE abc
AS
   ret   NUMBER;
   msg   VARCHAR2 (1000);
BEGIN
   EXECUTE IMMEDIATE 'truncate table OBSPROJ';
   --This is how you call a procedure inside a procedure.
   obsproj_full_rebuild(ret,msg); -- I guess your procedure accepts some values. .Here you are just passing the variables you declared.
END abc;

执行：

sql> exec abc;

Answer 2

首先：exec既不是SQL也不是PL / SQL命令 - 这就是你得到错误的原因。如果您仍想使用动态SQL来调用过程，可以将其包装在PL / SQL块中并绑定ret和msg变量：

execute immediate 'begin obsproj_full_rebuild(:ret,:msg); end;' using ret, msg;

但实际上你不必使用动态sql来执行这个过程。你可以简单地调用程序

CREATE OR REPLACE PROCEDURE abc AS
     ret NUMBER;
     msg VARCHAR2(1000);
BEGIN
     EXECUTE IMMEDIATE 'truncate table OBSPROJ';
     obsproj_full_rebuild(ret,msg);
END abc;

当尝试执行以下查询时，我得到以下错误“无效查询”，我认为问题是第二次执行查询

2 个答案: