Can I use the SQL function while setting of passage in the links?

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  7782, CLARK, MANAGER, 7839, 1981/09/06 00:00:00, 2450, 10

  7839, KING, PRESIDENT, 17/11/1981-00:00:00, 5000, 10

  7934, MILLER, CLERK, 7782, 1982/01/23 00:00:00, 1300, 10

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  SQL > exec run_query ("select * from (select * from scott.emp where deptno = 10 order by sal desc) where rownum < 5'");

  7839, KING, PRESIDENT, 17/11/1981-00:00:00, 5000, 10

  7782, CLARK, MANAGER, 7839, 1981/09/06 00:00:00, 2450, 10

  7934, MILLER, CLERK, 7782, 1982/01/23 00:00:00, 1300, 10

  (I'm not saying that it is a good practice: on the contrary.) But it is a requirement that was worth and I need to know how to cope, not arguing with it).

  My question is: the code works when the application before she includes not single quotes. As soon as he does, he died:

  SQL > run_query exec ('select 'Example', sal scott.emp where deptno = 10');

  BEGIN run_query ('select 'Example', sal scott.emp where deptno = 10'); END;

  *

  ERROR on line 1:

  ORA-06550: line 1, column 26:

  PLS-00103: encountered the symbol "EXAMPLE" when awaits an of the

  Next:

  ), * & = - + <>/ is mod remains not rem = >

  < an exponent (*) > <>or! = or ~ = > = < = <>and like2 or

  like4 likec in reports between use. Member of type multiset

  submultiset

  The symbol ", has been inserted before"EXAMPLE"to continue."

  I could of course escape quotation marks simple "internal", but the goal is for end-users to feed in their queries, without having to rewrite with delicate escape sequences!

  So the question is: is there a way I can allow users to feed their SQL in the procedure without having to worry about the single quotes that might be in the middle of it?

  Still, I realize has the risk of SQL injection... but I would like to help on the practicalities of quotes, not managing a risk which I am aware (and dealing with outside the procedural code, that I showed here).

  In other words, even if you think it's the worst idea in the world, I still want to know how I could feed 'select 'Example', sal scott.emp where deptno = 10'procedure that it is correctly.
  

  Is there a character that you can be reasonably confident does not appear in the SQL statement?  If so, you can probably use the q citing the syntax.  For example

  SELECT q'{select 'a', 'b', 'c' from dual}'
    FROM dual
  

  who can get applied to the call to function as well

  SQL> exec run_query( q'{select 'a', 'b', 'c' from dual}' );
  a
  b
  c
  
  PL/SQL procedure successfully completed.
  

  If you can be reasonably sure that there is no {or} character (or a number of other pairs), you can just that wrap the SQL statement.  Of course, this assumes that there is some bit of code enforcement between the user and the procedure call that can add to the {and}.  If this is the case, you could also just double apostrophes that meet you.

  Justin

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  Attract sincerely

  944768 wrote:

  the answer lies in a few cases only,

  The response illustrates the basic concept of how customers need to use cursors created using PL/SQL as a layer of abstraction - SQL and this concepts adapts to ALL cases where the customer wants to Oracle via PL/SQL cursor.

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  SY.

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