It is possible to have multiple messages with the same SQL state. For
example, 22007 is specifically called out in the SQL spec for "invalid
datetime format."
In HADB we actually use the same SQL State for many different errors
(they are distinguishable by the SQLException errno rather than by SQL
State).
That said, it is likely that some or all of these are just mistakes and
have no rationale. SQL State classes 42 and XJ are not defined in the
spec (at least as far as I can find) so they are Derby-specific.
David
Rick Hillegas wrote:
Hi Deepa,
Sql states are supposed to uniquely identify error conditions. To me
these look like different errors, each of which should have its own sql
state. Could you fix this while you're in there? It looks like there are
four sql states whose codes are duplicated:
ij> select sql_state, count(sql_state)
from new org.apache.derby.diag.ErrorMessages() c
group by sql_state
having count(sql_state) > 1
;
SQL_&|2
-----------------
22007|2
42601|2
42815|2
XJ081|2
The duplications of 42601 and XJ081 look like mistakes to me.
The other two sql states (22007 and 42815) have 11 character codes. The
header comment in SQLState.java explains the meaning of 5, 7, and 9
character codes. But I don't see any explanation of these 11 character
codes. Can anyone shed some light on this?
Thanks,
-Rick
Deepa Remesh wrote:
For DERBY-682, I was adding SQLStates with severity >=
session_severity to the test lang/errorCode.sql. While doing this, I
found that the SQLState 'XJ081' appears two times in the message
properties file with two different severity levels. Output from ij is:
ij> select * from new org.apache.derby.diag.ErrorMessages() c where
sql_state = 'XJ081';
SQL_&|MESSAGE
|SEVERITY
--------------------------------------------------------------------------------------------------------------------------------------------------
XJ081|Invalid value '{0}' passed as parameter '{1}' to method '{2}'
|20000
XJ081|Conflicting create/restore/recovery attributes specified.
|40000
SQLState.java has this:
String INVALID_API_PARAMETER = "XJ081.S";
String CONFLICTING_RESTORE_ATTRIBUTES = "XJ081.C";
I checked the code and both these are exceptions are thrown from the
code.
The Javadoc for org.apache.derby.iapi.reference.SQLState says this:
"If the state is seven characters long then only the first five will
be seen by the error reporting code and exception." Can this
duplication of first 5 characters in SQLState cause any problems?
Thanks,
Deepa
begin:vcard
fn:David W Van Couvering
n:Van Couvering;David W
org:Sun Microsystems, Inc.;Database Technology Group
email;internet:[EMAIL PROTECTED]
title:Senior Staff Software Engineer
tel;work:510-550-6819
tel;cell:510-684-7281
x-mozilla-html:TRUE
version:2.1
end:vcard
