|
Problem IC89963
|
Status: Closed |
SQL0901 IS RETURNED FOR A QUERY THAT FETCHES ZERO-LENGTH LARGE OBJECTS ON DPF |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
In DPF, if a query is run that is selecting a large object, and
if that large object
has a length of 0, then a logic problem in the handling of the
object might return
an sql0901. The db2diag.log would show something like this:
2012-10-15-03.41.10.076746-240 I1452420E856 LEVEL: Severe
PID : 01234 TID : 01234567890123PROC :
db2sysc 1
INSTANCE: db2inst1 NODE : 001 DB : SAMPLE
APPHDL : 1-23456 APPID: 01.234.56.789
AUTHID : TEST
EDUID : 123 EDUNAME: db2agent (sample) 1
FUNCTION: DB2 UDB, relation data serv, sqlrr_dump_ffdc,
probe:300
DATA #1 : SQLCA, PD_DB2_TYPE_SQLCA, 136 bytes
sqlcaid : SQLCA sqlcabc: 136 sqlcode: -901 sqlerrml: 19
sqlerrmc: sqlrh_create_handle
sqlerrp : SQLRI09F
sqlerrd : (1) 0x00000000 (2) 0x00000000 (3)
0x00000000
(4) 0x00000000 (5) 0xFFFFFFE5 (6)
0x00000001
sqlwarn : (1) (2) (3) (4) (5) (6)
(7) (8) (9) (10) (11)
sqlstate:
For example, a CLOB that contains the empty string '' is the
style of data that
can result in this. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* DB2FORLUW 9.7 *
****************************************************************
* PROBLEM DESCRIPTION: *
* In DPF, if a query is run that is selecting a large object, *
* and *
* if that large object *
* has a length of 0, then a logic problem in the handling of *
* the *
* object might return *
* an sql0901. The db2diag.log would show something like this: *
* *
* 2012-10-15-03.41.10.076746-240 I1452420E856 LEVEL: *
* Severe *
* *
* PID : 01234 TID : 01234567890123PROC : *
* db2sysc 1 *
* INSTANCE: db2inst1 NODE : 001 DB : *
* SAMPLE *
* *
* APPHDL : 1-23456 APPID: 01.234.56.789 *
* AUTHID : TEST *
* *
* EDUID : 123 EDUNAME: db2agent (sample) 1 *
* *
* FUNCTION: DB2 UDB, relation data serv, sqlrr_dump_ffdc, *
* probe:300 *
* DATA #1 : SQLCA, PD_DB2_TYPE_SQLCA, 136 bytes *
* *
* sqlcaid : SQLCA sqlcabc: 136 sqlcode: -901 *
* sqlerrml: 19 *
* *
* sqlerrmc: sqlrh_create_handle *
* *
* sqlerrp : SQLRI09F *
* *
* sqlerrd : (1) 0x00000000 (2) 0x00000000 (3) *
* 0x00000000 *
* (4) 0x00000000 (5) 0xFFFFFFE5 (6) *
* 0x00000001 *
* sqlwarn : (1) (2) (3) (4) (5) *
* (6) *
* *
* (7) (8) (9) (10) (11) *
* *
* sqlstate: *
* *
* *
* *
* For example, a CLOB that contains the empty string '' is the *
* style of data that *
* can result in this. *
****************************************************************
* RECOMMENDATION: *
* Upgrade to DB2 9.7 FP9 *
**************************************************************** |
| Local Fix: |
It might be possible to bypass the faulty logic by changing the
query to filter out
the zero-length large objects earlier in the access plan if
those results are not
needed. For example, adding a where clause like "where
length(clobfield) > 0. |
| available fix packs: |
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows
|
| Solution |
|
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 31.01.2013
25.11.2013
25.11.2013 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP9
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.9
|
 |
| 9.7.0.9
|
|
