All Oracle Error Codes
Oracle DBA Forum

Frequent Oracle Errors

TNS:could not resolve the connect identifier specified
Backtrace message unwound by exceptions
invalid identifier
PL/SQL compilation error
internal error
missing expression
table or view does not exist
end-of-file on communication channel
TNS:listener unknown in connect descriptor
insufficient privileges
PL/SQL: numeric or value error string
TNS:protocol adapter error
ORACLE not available
target host or object does not exist
invalid number
unable to allocate string bytes of shared memory
resource busy and acquire with NOWAIT specified
error occurred at recursive SQL level string
ORACLE initialization or shutdown in progress
archiver error. Connect internal only, until freed
snapshot too old
unable to extend temp segment by string in tablespace
Credential retrieval failed
missing or invalid option
invalid username/password; logon denied
unable to create INITIAL extent for segment
out of process memory when trying to allocate string bytes
shared memory realm does not exist
cannot insert NULL
TNS:unable to connect to destination
remote database not found ora-02019
exception encountered: core dump
inconsistent datatypes
no data found
TNS:operation timed out
PL/SQL: could not find program
existing state of packages has been discarded
maximum number of processes exceeded
error signaled in parallel query server
ORACLE instance terminated. Disconnection forced
TNS:packet writer failure
see ORA-12699
missing right parenthesis
name is already used by an existing object
cannot identify/lock data file
invalid file operation
quoted string not properly terminated

Parsing order (Was: "select ... connect by..." in the view)

Igor Neyman



Ok, I see no takers on my original question (how to create a view based on “select … connect by… and prior… start with…” to get the hierarchy).

May be this will spark some interest, I guess it’s about parsing order.


The view I’m using looks like this:


SQL*Plus: Release - Production on Wed Mar 10 08:42:51 2004


Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.


Connected to:

Oracle9i Enterprise Edition Release - Production

With the Partitioning, OLAP and Oracle Data Mining options

JServer Release - Production


SQL> create or replace view test_view_ms as


  3  vt.model_id, vt.lvl "LEVEL", vt.parent_subassembly_id, vt.subassembly_id

  4  FROM test_ms tm, TABLE(m_tree(tm.model_id)) vt;


View created.


And it works fine; “m_tree” is a function that hides “select … connect by… and prior… start with…”.

“test_ms” table added to the join in order to be able to specify “model_id” when querying this view.


But, if I change the order in the “FROM” list, I get an error:


SQL> create or replace view test_view_ms as


  3  vt.model_id, vt.lvl "LEVEL", vt.parent_subassembly_id, vt.subassembly_id

  4  FROM TABLE(m_tree(tm.model_id)) vt, test_ms tm;

FROM TABLE(m_tree(tm.model_id)) vt, test_ms tm


ERROR at line 4:

ORA-00904: "TM"."MODEL_ID": invalid identifier


Is it because of the way (order) Oracle is parsing this view?


Igor Neyman, OCP DBA




-----Original Message-----
From: oracle-l-bounce@freelists.org [mailto:oracle-l-bounce@freelists.org] On Behalf Of Igor Neyman
Thursday, February 26, 2004 11:44 AM
To: oracle-l@freelists.org
Subject: "select ... connect by..." in the view


Just wonder if anyone has (or came across) better solution for this.


I had a request from developer to put “select … connect by…” into view.

He wants to get the hierarchy in one step, but the “framework” he is using doesn’t allow him to issue “select … connect by…”.

I’ve got rather ugly solution for him (which I can share if anyone interested, didn’t want this message to be long), using user types, function, and the final view looks like this:


create or replace view test_view_ms as


vt.model_id, vt.lvl "LEVEL", vt.parent_subassembly_id, vt.subassembly_id

FROM test_ms tm, TABLE(m_tree(tm.model_id)) vt;


So, now he can get the hierarchy for specified model with just:

select from test_view_ms where model_id = …


Igor Neyman, OCP DBA