RE: SELECT SKIP

From: Steve Adams <steve.adams_at_ixora.com.au>
Date: Thu, 15 Feb 2001 14:39:50 -0800
Message-ID: <F001.002B6073.20010215144335@fatcity.com>

Hi Jack,

After having created a suitable table, a cut and paste of that SQL returns "no rows selected" running 8.1.6 on NT. No error message. I've used it under 8.1.6 on Solaris before, and it has worked there too.

@ Regards,
@ Steve Adams
@ http://www.ixora.com.au/
@ http://www.christianity.net.au/

-----Original Message-----
Sent: Friday, 16 February 2001 7:49
To: ORACLE-L_at_fatcity.com
Cc: Steve Adams

Steve,

Here's what I did to test Select...For Update Skip Locked.

The same ORA-03113 happens running SQL*Plus 8.1.6 or 8.1.7 (both window and command line versions) against either Oracle8i EE 8.1.6.0.0 or 8.1.7.0.0. SQL*Plus and the databases are running under Windows2000. Both the simple Select and the PL/SQL block work (or wait) as expected if the "Skip Locked" phrase is left off and either NoWait or Wait is specified.

First, in SQL*Plus session 1:

SQL> Select Document_ID
  2 from Documents
  3 Where RowNum < 3
  4 For Update;

DOCUMENT_ID

9789959
9789960

Then, in SQL*Plus session 2:

SQL> Select Document_ID
  2 from Documents
  3 Where RowNum < 3
  4 For Update Skip Locked ;
Select Document_ID
*
ERROR at line 1:
ORA-03113: end-of-file on communication channel

Even putting the Select in a PL/SQL anonymous block doesn't help.
In SQL*Plus session 2:

Declare

  Type rc Is Ref Cursor ;
  c    rc               ;
  n    Number           ;

Begin
  Open c For
  'Select Document_ID From Documents Where RowNum < 3 For Update Skip Locked' ;
  Loop
    Fetch c Into n ;
    Exit When c%NotFound ;
    DBMS_Output.Put_Line('Document_ID= ' || To_Char(n)) ;   End Loop ;
  Close c ;
End;
/

Does it work on other OSs or Oracle versions? Am I missing something?

Thanks.

Jack

Jack C. Applewhite
Database Administrator/Developer
OCP Oracle8 DBA
iNetProfit, Inc.
Austin, Texas
www.iNetProfit.com
japplewhite_at_inetprofit.com

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Author: Steve Adams
  INET: steve.adams_at_ixora.com.au

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Received on Thu Feb 15 2001 - 16:39:50 CST