Dropping composite Primary Key does not drop the index

Today I have encountered a surprising fact:

Scenario is 10.2.0.1  Express Edition on Win32.

I have a table called job_history in the HR scheme which has a composit primary key : and there is an index for the primary key:

SQL> select index_name from user_indexes where table_name=’JOB_HISTORY’;

INDEX_NAME

Does the following info help to explain?

——————————
JHIST_EMP_ID_ST_DATE_PK
JHIST_JOB_IX
JHIST_EMPLOYEE_IX
JHIST_DEPARTMENT_IX

This is my constraint in the data dictionary:

SQL> select column_name , position
  2   from user_cons_columns
  3  where constraint_name=’JHIST_EMP_ID_ST_DATE_PK’;

COLUMN_NAME      POSITION
———————–    ———————————
EMPLOYEE_ID        1

START_DATE          2

 

Now I drop the primary key constraint

SQL> alter table job_history drop constraint
  2  JHIST_EMP_ID_ST_DATE_PK including indexes;

Table altered.

And here is the surprise:

SQL> select index_name from user_indexes where table_name=’JOB_HISTORY’;

INDEX_NAME
——————————
JHIST_EMP_ID_ST_DATE_PK
JHIST_JOB_IX
JHIST_EMPLOYEE_IX
JHIST_DEPARTMENT_IX

I do not see the point here. Why is the index still there?

Evern though I have explicitly written INCLUDING INDEXES.

BUG or Feature?!

Can anyone explain?

BUG with Bind Variables in Labeled Block in 10gR2

Yesterday in my course I ran into a strange BUG in Oracle Express (XE) on WIN32 and Linux 32 bit, in fact one of my students,  Ralf Spiwoks, found it:

I have tried to run a  top level anonymous block in which assigned a value to a BIND variable and got kicked out of my session with an ORA-03113.

SQL> VAR lname VARCHAR2(4)

SQL> <<my_lable>>
 BEGIN
    :lname:=’LUTZ’;
   end;
/

ERROR:
ORA-03114: not connected to ORACLE
 <<my_lable>>
*
ERROR at line 1:
ORA-03113: end-of-file on communication channel

THIS IS A BUG which exists in 10gR2.

Only top level blocks are affected by this BUG.
 After I wrapped the block into another block it worked.

Here is the workaround:

BEGIN
  <<my_lable>>
 BEGIN
 :lname:=’LUTZ’;
 END;
END;
/

PL/SQL procedure successfully completed.

 I have tested only WIN 32 and LINUX32 =>  XE and Enterprise Edition on Win32.  It has been fixed in the meentime, but I am not sure with which patch.
In EE 11gR1  it works.

100′000 hits on sysdba.wordpress.com

Today my blog has reached to the 100′000 hits landmark.

I am very happy that this has become such a successfull forum here.

Thanks for reading
I’ll keep on posting in the future!

 

Speaking at Swiss Oracle Usergroup

Today I have delivered two presentation @ the

 yearly conference of the Swiss Oracle Usergroup.

The topics were :

- Real Application Testing with Oracle 11g
     REPLAY DATABASE and
     SQL PERFORMANCE ADVISOR

- SQL Plan Management and Automatic SQL Tuning in 11g

I have used my new courseware which
I have produced in the last few weeks for 11g New Features.

I offer to to deliver special courses for topics such as

- High Availability with Flashback and other 10g and 11g features
- Backup 10g & 11g
- Memory Management 10g & 11g
- Upgrade Issues 10g & 11g
- 11g New Features Overview

If you are interested in these topics please contact me by email:

info@sysdba.ch

Teaching Oracle Support and Trainers

At the moment I am in Cairo delivering a number of 11g New Features trainings.

I have a completely packed class with 21 students.

 Most of the students are Oracle Trainers, Support Agents and Consultants.

Visiting Muhammad Ali

After arriving in Cairo I immediately went to see if the my friend Muhammd Ali is still in living in his place as before 13 years.  I had been living in his place for a while in the 90s.

 Muhammad is an internationally recognized artist and has been painting since more than 25 years now. He had exhibitions in Paris, Hamburg, Berlin, Zurich and many other places.

He lives in a very poor area near the great basar Khan Al-Khalili.

In April he will have an exhibition in Talaat Harb Streeet in Downtown Cairo and I hope  that he will sell a great number of his beautiful naive paintings again.

وصلتُ إلى ام الدنيا

 Today I have arrived in Cairo, the Mother of the Earth.

I will deliver a number of Oracle 11g trainings here.

This is the first time I am in Egypt after 12 years.
In the middel of the ninetees I had been living here for a couple of longer times.
I am very interested in the developments in Egyptian society since then.

Hopefully I will meet a lot of interesting people. 

A spanish evening with Steven Feuerstein

Yesterday I had organized a little dinner with Steven Feuerstein, my former collegue Christoph Burandt and his lovely wife Silvia as well as my dear friend Jenny.

Steven had delivered a two day seminar for Oracle University in Munich. Although he was very sick in the last days, he had caught  a chest cold and swollowed an enormaouse amount of remedies in order to be able to deliver anyway, he preferred not to hang around in his room alone and come for our little dinner.

Thanks for coming Steven! Hope you’re feeling better already.

We talked about everything but PL/SQL and had a lot of fun.
Christoph is the one who had introduced me to PL/SQL in 2000 and I was very happy to meet him once again.
I think that he is one of the best instructors in this field you can get in Germany.
His wife is from Peru and Steven adressed her in Spanish.

Everybody could speak Spanish except me!

=;-)

10.2.0.4 patchset available for download

I

 I am just downloading the latest patchset for RDBMS Server 10.2.0.4 for Linux x86.

It is documented in Metalink NOTE: 316900.1

 Components of This Patch Set

The following are the updated components of this patch set:

• Up to January 2008 CPU is included in this patch set.
• Platform-specific bug fixes as listed in the “Fixed Platform-Specific Bugs” section
• Generic bug fixes as listed in the List of Bugs fixed document
• Oracle Configuration Manager 10.2.7.1

I am very curiose about the possibility to capture a workload in 10g and run for Real Application Testing in 11g.

It should be included in this patchset.

I will try it and post about it here ASAP.

=;-)

SSWUG has removed my content from their site!

It worked!

All you need to do is threaten them!

They have removed the links to my content.

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