Back to HOTSOS, HOTSOS 2010 Day 1

As always Hotsos started off with a nice keynote, this time done by Tom Kyte. Tom Kyte was introduced by Hotsos president Gary Goodman after the HOTSOS 2010 opening. Tom’s keynote theme was “Should we be less smart some times”. Tom told about own experiences, that he in the past gave sometimes too fast an answer. It is very important to think about an answer before giving it… Why? Well some things applied in the past or for a specific version, and now they don’t anymore… this can be a problem, a real issue. Always make sure you talk about the same definitions, and agree on them. Make sure talking about the same version and of course about similar circumstances. When you start giving answers in general be sure to work with facts and not some assumptions which might be wrong. So you should always think about the information, about the circumstances and the assumptions you do, it means “Continuous Thinking”.

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March 15, 2010 | Filed Under EXADATA, Query, Trace, Uncategorized, error, general, parameters, personal | Leave a Comment 

ORA-01422 while drop table (even DUAL looks fine)

Today on the OTN forum a question was comming up about an ORA-01422, in combination of a table drop.

SQL> drop table xxx
2 /
drop table xxx
*
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-01422: exact fetch returns more than requested number of rows

Due to the fact that this looked a bit weird, I did a small test on my 11.1.0.7 database. The following test case I did: Read more

December 14, 2009 | Filed Under error, general | 4 Comments 

ORA-25330 is encountered when running DBMS_PREDICTIVE_ANALYTICS.PREDICT

I recently discovered that under certain circumstances, for now it looks to be environment setting depended, that an ORA-25330 is encountered when running dbms_predictive_analytics.predict procedure. I found out of this problem while preparing a demo and certainly the error was comming up in TOAD (I am not a TOAD fan, but it is handy searching through the very big amount of factor columns in a GAPP analysis). When the same command below was executed directly on the server via sqlplus, the error was not encountered.

To investigate I tried to create a errorstack on the error, but without luck. So I started to do a sqltrace and found out that the ORA-25330 is actually on the server translated as ORA-40206. After I found that I created the following small test in TOAD: Read more

March 12, 2009 | Filed Under GAPP, error, general | Leave a Comment