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Go Back  dBforums > Database Server Software > DB2 > Problems with explain tables

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  #1 (permalink)  
Old 07-09-09, 00:46
michael.mest michael.mest is offline
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Join Date: Jun 2009
Posts: 8
Question Problems with explain tables
Hi,

i've some trouble with using db2advis, the index-advisor, because there seem to be some Problems with the explain-tables.

When I try to run db2advis, i get the following Error

Code:
*************************************
*         INHALTE DES SQL-KOMMUNIKATIONSBEREICHS         *
*************************************

SQLCABC  = 136
SQLCODE-Wert  = -901
SQLERRMC = column number out of range
SQLERRP  = SQLNQ041
sqlerrd[0] = 2149187693
sqlerrd[1] = 0
sqlerrd[2] = 0
sqlerrd[3] = 0
sqlerrd[4] = 4294967196
sqlerrd[5] = 0
SQL-WARNUNG  =
SQLSTATE-Wert = 58004
Kritischer SQLCODE-Wert.
It seems that the problem is, that the explain tables are not specified in the right way, so i try to drop the explain tables so that i can re-create them.

When I run "db2 DROP TABLE explain_statemtent" for example, I get a SQL 0901N with Reason-Code: "Corrupt PD->length in table "IOSTAGIN"."EXPLAIN_PREDICATEC""

I could not find anything about that. What does that mean and how can I fix it?

EDIT: Used Version is 9.1 FP 7 on Linux X64
Last edited by michael.mest; 07-09-09 at 00:58.
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Old 07-09-09, 07:16
n_i n_i is offline
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Did you try dropping EXPLAIN_PREDICATES and other explain tables?
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Old 07-09-09, 07:37
michael.mest michael.mest is offline
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yes, same error message.
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Old 07-09-09, 07:38
DBFinder DBFinder is offline
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Try drop and recreate the EXPLAIN tables.

The DDL is in sqllib/misc folder (EXPLAIN.DDL)
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Old 07-09-09, 09:15
michael.mest michael.mest is offline
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It's not possible to drop any of the explain-tables because of error:

"Corrupt PD->length in table "IOSTAGIN"."EXPLAIN_PREDICATEC""
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Old 07-09-09, 11:19
db2girl db2girl is offline
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I'd suggest to open a pmr, support needs to investigate this issue. They may be able to fix the corrupted pd and identify the root cause.
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