Updated OLAP DML Reference 10.2 posted to OTN

The Oracle OLAP DML Reference has been updated with corrections for Oracle Database 10.2. As you may not be aware, this document corresponds to the OHJ Help for Analytic Workspace Manager. You can find the revised doc at :
http://www.oracle.com/technology/products/bi/olap/OLAP_DML_10.2.zip
NOTES :
* The part number is same as the original 10.2 version, however it has an October 2005 date on it.
* Once AWM 10.2.0.2 is released, it will contain the updated, corresponding OHJ Help. AWM 10.2.0.1.0 and 10.2.0.1.0A contain the original 10.2 OHJ Help.

I'm thinking I don't have a real operational problem here, but I do like to tie up any loose ends and keep things as clean as possible.
Ditto....we had many more invalid objects after the upgrade than before and they were all OLAP related. As we weren't using OLAP we did the cleanup to avoid any future issues.
It seems odd to me that if one selects to install Standard Edition One, it would still install EE options at all ..... just to have DBUA choke on them later.
Our Oracle support guy was a bit confused as to why the OLAP removal scripts didn't exist on our server. This was expected for Standard Edition but not Enterprise Edition. Something has probably happened during some migration/upgrade to cause this. In any case removing the objects manually including the public OLAP synonyms resolved our issues.

Similar Messages

Updated 'Second GLOBAL Schema for Documentation' posted to OTN

The Oracle OLAP Application Developer's Guide 10.2 uses a specific version of the GLOBAL schema for some of its examples. This version, global_doc.zip, has been updated and posted to OTN. In the previous version, Window users may have run into a problem installing the Second Global Schema for Documentation. It was discovered that in the global_install.sql script the line that imports the data is operating system specific. That line starts with "!imp" .
The line to begin with "ho imp" has been changed so that it works for both Windows and Linux. You can find the new version of global_doc.zip at the following OTN site:
http://www.oracle.com/technology/products/bi/olap/doc_sample_schemas/globalschemawithxml.html

Hi,
Try checking the table XML_LOAD_LOG as this contains details of all the jobs executed for your AW. I suspect the mapping for your source data columns to your cube measures and dimension keys is probably incorrect. If you check the load log table it will tell you if any rows were loaded into your cube and/or how many rows were rejected by the load. If you cannot see any data I suspect the load rejected all the records.
Try using the following report to look at the load log table:
select XML_LOADID as "Load ID"
, XML_RECORDID as "Record ID"
, XML_AW as "AW"
, XML_DATE as "Date"
, TO_CHAR(XML_DATE, 'HH24:MM:SS') as "Actual Time"
, substr(XML_MESSAGE, 1, 9) as "Message Time"
, substr(XML_MESSAGE, 9) as "Message"
from olapsys.xml_load_log order by 1 desc, 2 descKeith Laker
Oracle EMEA Consulting
OLAP Blog: http://oracleOLAP.blogspot.com/
OLAP Wiki: http://wiki.oracle.com/page/Oracle+OLAP+Option
DM Blog: http://oracledmt.blogspot.com/
OWB Blog : http://blogs.oracle.com/warehousebuilder/
OWB Wiki : http://wiki.oracle.com/page/Oracle+Warehouse+Builder
DW on OTN : http://www.oracle.com/technology/products/bi/db/11g/index.html

How do I view data from OLAP DML program or statement?

Hi
I'm struggling to find any information on this topic anywhere on the net:
How to view data produced by an Oracle OLAP DML program or statement.
Background :
I am using the latest AWM to create and maintain dimensions, cubes and measures. However, I've noticed that AWM, Discoverer OLAP, BI Beans, Excel Plug-In et al only provide a fixed set of formula and expressions.
For example, I wanted to created a Standard Deviation (STDEV) on measure. After much searching I learnt that I could do this by creating a custom measure in AWM by importing a measure defined in an XML dcoument as it's not provided by AWM. The output in Discoverer OLAP on the surface seems to give the correct results, however when drilling from high level to lower level of time time dimension hierarchy Discoverer includes the parent value in the calculation and renders the values incorrect.
My alternative is to use OLAP DML, as it provides a richer range of formuale and calculations possibilities and I was hoping to use this functionality to do create the measures. I have the distinct impression, however, that OLAP Worksheet is the only interface out there to do this.
It seems very primitive and limited with regards to data output, almost like SQL*Plus in many ways.
The burning questions I have are :
1) Do I need to write DML programs to perform these custom measure calculations and add them to cubes or do I import the custom measures via AWM and XML?
2) If the answer to question 1 is DML programming, is there a way of viewing the OLAP data output through a GUI interface without embedding the statements in SQL.
3) Has anyone experienced or noticed the same problem with Discoverer OLAP, AWM Viewer that I mentioned above? i,e, statistical functions performed on whole dimension hierarchy rather than lower levels.
I'm hoping someone out there knows what I am trying to do or get at. Keith, any ideas or suggestions?
Thanks
Kind Regards
Greg

Hi Greg,
There are two ways to achieve what you want. Both require the use of custom calculations which cannot be created via the calculation wizard within AWM. To do this the easiest way is step outside of AWM and use the Excel Calculation utility that is on the OLAP OTN home page:
Creating OLAP Calculations using Excel
http://download.oracle.com/otn/java/olap/SpreadsheetCalcs_10203.zip
Readme
http://www.oracle.com/technology/products/bi/olap/OLAP_SpreadsheetCalcs.html
(Oracle OLAP DML Reference contains a list of all the OLAP functions that can be used to create a custom calculation. http://www.oracle.com/technology/products/bi/olap/OLAP_DML_10.2.zip)
The Excel tool lets you assign your own formula to a measure and then uploads that measure definition into your AW. It is possible to import a custom calculation template into AWM using the menu option on the Calculated Measure node of each cube, but it is safer to use the Excel Worksheet as this directly uses the public XML API and is always best to use a public API rather than hacking XML templates.
There are two types of custom calculation:
1) Formula: using a formula you can directly call any of the OLAP functions. For example to create a measure that returns the standard deviation for a measure then you would enter the following as the formula for your calculated measure:
stddev(sales_revenue, time)
The easiest way to test if the measure is working as expected is to use the data viewer within AWM.
2) Programs - if the function you need is not provided or you want to do special processing to return a result you can create an OLAP DML program which can return a result. To do this use OLAP Worksheet to define the program and add a datatype to the DEFINE statement, such as :
DEFINE PRG_SD_SALES PROGRAM DECIMAL
In the program return the value you have calculated within your program. Within the program you can do just about anything but be aware that your program is going to fire for every cell within your virtual cube so it must be efficient and fast to execute. For a measure then you would enter the following as the formula for your calculated measure:
prg_sd_sales(time, products, geographies, channels).
The actual program code would look something like this:
DEFINE PRG_SD_REVENUE PROGRAM DECIMAL
PROGRAM
argument T_TIME TIME
argument T_PRODUCT PRODUCTS
argument T_GEOGRAPHY GEOGRAPHIES
argument T_CHANNEL CHANNELS
variable D_RETURN decimal
TEMPSTAT TIME, PRODUCTS, GEOGRAPHIES, CHANNELS
do
limit PRODUCTS to T_PRODUCT
limit CHANNELS to T_CHANNEL
limit GEOGRAPHIES to T_GEOGRAPHY
limit TIME to T_TIME
limit TIME add descendants using TIME_PARENTREL
limit TIME keep TIME_LEVELREL 'CAL_MONTH'
D_RETURN = stddev(SALES_REVENUE)
doend
return D_RETURN
END
This code computes a standard deviation the all months within the specified time range, at year level for all 12 months, at quarter level for the three months within the quarter ans returns NA at the month level.
As the code executes within a implicit loop you can only change the status fo dimensions that for part of that implicit by using the TEMPSTAT command. To test the program at the command line use the OLAP Worksheet and the SHOW command to just return one cell of data, DO NOT SIMPLY USE THE RPR COMMAND because you will have to wait for the whole cube to be returned. If you want to use the RPR command make sure you limit your base dimensions first! You can use PRGTRACE to debug your program code it is not working as expected. Again, the easiest way to test if the measure is working as expected is to use the data viewer within AWM, although this will not return debug information so send all your debug output to a file to capture any errors and/or trace the execution flow.
Hope this helps
Keith Laker
Oracle EMEA Consulting
BI Blog: http://oraclebi.blogspot.com/
DM Blog: http://oracledmt.blogspot.com/
BI on Oracle: http://www.oracle.com/bi/
BI on OTN: http://www.oracle.com/technology/products/bi/
BI Samples: http://www.oracle.com/technology/products/bi/samples/

OLAP DML

Hi!
Does anybody know where can I get information about OLAP DML Language besides Oracle OLAP DML Reference ??
This document is not very "easy going" .
Thanks a lot

I am guessing you know how to use AWM. If you dont, please see the downloads on the right hand side of this web page.
(http://www.oracle.com/technology/tech/bi/index.html)
Login to the AW using AWM, then go to Tools--> Olap Worksheet in the menu. This is sort of SQLPlus for OLAP.
Let me know more details about where u are if you need any more clarity.
Swapan.
null

IF/ELSE IF in OLAP DML Expression

Is it possible to do an IF/ELSE IF clause directly within my DML Expression?

You maybe right. I could not find the information in the documentation where it is mentioned that the end of line character for a single line expression is '-' character.
I did see the following in OLAP DML documentation.
IF...THEN...ELSE command is documented in OLAP DML Reference Guide:
http://docs.oracle.com/cd/E11882_01/olap.112/e17122/dml_commands_2005.htm
+"When IF is used as an expression, the THEN and ELSE keywords must be on the same line as IF. When IF is used as a command, THEN and ELSE must be on separate lines."+
On webpage: http://docs.oracle.com/cd/E11882_01/olap.112/e17122/dml_expression.htm#BABGJIIJ
example 2-4 shows the following:
testprogram = IF testtype EQ 0 -
THEN 'program0' -
ELSE IF testtype EQ 1 -
THEN 'program1' -
ELSE IF testtype EQ 2 OR testtype EQ 3 -
THEN 'program2'
ELSE NA

Anyone know of a good OLAP DML/DDL tutorial? (and NOT reference guide)

In addition to Analytic Workspace, I am trying to learn how to build cubes using just the OLAP DML / DDL language.
Oracle and others have published a great deal of reference material on the language of OLAP DML / DDL but I can't find any real tutorials that guide me logically thru the process of creating cubes and all that goes with it (defining dimensions, hierarchies, measures, calculations etc..) All the reference material is spread out in bits and pieces and difficult to efficiently learn from. Does anyone have any good OLAP DML / DDL tutorial links they could recommend? Thanks.

John W wrote:
Oracle and others have published a great deal of reference material on the language of OLAP DML / DDL but I can't find any real tutorials that guide me logically thru the process of creating cubes and all that goes with it (defining dimensions, hierarchies, measures, calculations etc..) All the reference material is spread out in bits and pieces and difficult to efficiently learn from. Does anyone have any good OLAP DML / DDL tutorial links they could recommend? Thanks.This is a very difficult task. The OLAP DML/DDL only supports basic multidimensional variables, dimensions (very primitive), and relations. The externally visible cubes and dimensions are a construct of a lot of component objects (a dimension has many primitive dimensions and relations put together to create the higher level DIMENSION that goes with a cube; a cube has multiple variables and other pieces that get put together) in the AW, plus a bunch of metadata objects in the Oracle dictionary.
You really don't want to try to create your own and expect them to interact with the OLAPI interfaces. It is possible to construct your own version of things, but you'd also have to do your own view generation, etc. There are applications out there that are created from scratch, but they are completely from scratch (including whatever interactions they have via SQL). Whatever you create will not work with any of the Oracle-provided interfaces, nor the recently-announced Simba MDX package.
Jim

Equivalent to ROLAP :insert, update, delete in OLAP DML?

I have a ROLAP star schema. The process update is in Real Time using triggers in the operational tables. When an update in the operational table occur the trigger call a store procedure where : 1- find de fact row using dimensions key, 2-the messure value is update.
Question:? How to do the same in MOLAP 11g . What are the OLAP DML commands to use?
Thank's

in these case what about data duplication? :
1- the production db
2- the star schema
3- the molap cube
i have 12 fact tables with millions of records.
my abstract scenario view:
production table:
pk field1 field2 field3
1 A B Z
2 A B Y
3 A B X
4 A B Z
5 A C Z
6 A C Z
7 E B Z
8 E C Y
star schema:
dim_field1 table:
pk field1
1 A
2 E
dim_field2 table:
pk field2
1 B
2 C
fact table:
pk id_field1 id_ field2 count
1 1 1 4
2 1 2 2
3 2 1 1
4 2 2 1
my abstract real time update process:
case a) change in the 4 row production table: from field2 value (B) to field2 value(C)
step 1: search in the fact table with id_field1 value (1) and id_field2 value (1).. row 1
step 2: count=count-1= 4-1 ( if result count=0 then delete these row 1 )
step 3: search in the fact table with id_field1 value(1) and id_field2 value(2) ...row 2
step 4: if that combination exists
then count=count+1
else insert a new fact row with count=1 and id_field1 value(1) and id_field2 value(2)
is possible to do that with OLAP DML , please a need an example about how to do?
Thanks

Where I can find examples with OLAP DML to update the cube cells?

Hi,
Where I can find examples with OLAP DML to update/calculate the cube measure/cells?
I would like to insert data into the cube by OLAP DML.
Regards,
TomB

Not sure about examples but this is how you should proceed
1. Limit all your dimension to the leaf level values.
lmt financialperiod to '200901'
lmt geography to 'XYZ'
lmt product to 'LAPTOP'
2. Limit your measure variable to one measure(this is applicable if you have more than one stored measure in the cube).
for 10g
lmt <cube name>prtmeasdim to '<MEASURE NAME>'
for 11g
lmt <cube name>measuredim to '<MEASURE NAME>'
3. Write into the variable.
for 10g
<cube name>prttopvar = 100 -- this variable is created for a compressed & partitioned cube. for uncompressed cube the variable name is <cube name>_stored.
Thanks
Brijesh

Creating KPI using OLAP DML

Hi all,
How do we develop KPI (Key Performance Indicators) using OLAP DML in AWM 10g R2 (Analytical Workspace Manager)? I am new to this tool. Can anybody help me with a sample code. If there is any other way of implementing KPI in Oracle BI, kindly quote that example as well.
Kieth, if you can answer my question and give me a sample OLAP DML code, i will be more than happy.
Thanks in advance

In 10g this is not quite as simple as 11g. To create a custom measure that calls an OLAP DML program you need to either:
1) Download the Excel Utility from the OLAP home page on OTN:
http://download.oracle.com/otn/java/olap/SpreadsheetCalcs_10203.zip
but check the readme first:
http://www.oracle.com/technology/products/bi/olap/OLAP_SpreadsheetCalcs.html
or
2) Use Warehouse Builder to manage your AWs. OWB allows you to automatically create custom calculations that call OLAP DML programs.
If you look at this posting on the Oracle OLAP Blog you will find an example of how to create an OLAP DML program and reference it from a calculated measure:
http://oracleolap.blogspot.com/2008/03/creating-calculated-measure-cube.html
Keith Laker
Oracle EMEA Consulting
OLAP Blog: http://oracleOLAP.blogspot.com/
OLAP Wiki: http://wiki.oracle.com/page/Oracle+OLAP+Option
DM Blog: http://oracledmt.blogspot.com/
OWB Blog : http://blogs.oracle.com/warehousebuilder/
OWB Wiki : http://wiki.oracle.com/page/Oracle+Warehouse+Builder
DW on OTN : http://www.oracle.com/technology/products/bi/db/11g/index.html

Help on OLAP DML function – "joinchars"

Hi,
We have built a cube called 'CubeTest' which has a measure called 'TestMeasure' of decimal data type, using Oracle AWM v10.2.0.3.0A.
Now, I am using "Oracle OLAP Calculations v1.2.5", as available on OTN homepage, to define my own calculated measures using OLAP DML for this cube.
I have defined the following two measures (for both, Calculation Type is 'Equation' and both are using free-form equations defined over TestMeasure):
1. Calculated_Measure1
2. Calculated_Measure2
Now, I want to define a third calculated measure in a way that it represents a concatenation of the above two measures suffixed with some standard text.
e.g. A Typical value of the third calculated measure will be like:
Calculated_Measure1 + 'ABC' + Calculated_Measure2 + 'XYZ'
Here, the '+' sign indicates the idea of concatenation.
To achieve the above result, I am using the OLAP DML function "joinchars" to define a free-form equation like the one below:
joinchars(Calculated_Measure1,'ABC',Calculated_Measure2,'XYZ')
Now, the issue is that calculation like the one above, using joinchars is not being created successfully. I tried pre-qualifying (and not pre-qualifying) the names of the calculated measures with the cube name and also experimenting with the “Show” command. Also, once the calculation definition fails to get created, I am not even being able to attach my AW in R/W mode as I get the error as below:
oracle.AWXML.AWException: java.lang.NullPointerExceptionat oracle.AWXML.AW.readAWDefinitions(AW.java:1339)at oracle.olap.awm.dataobject.aw.WorkspaceDO.getModelAW(WorkspaceDO.java:803)at oracle.olap.awm.dataobject.aw.WorkspaceDO.getModelAW(WorkspaceDO.java:749)at oracle.olap.awm.navigator.node.WorkspaceNode.getModelerViewChildren(WorkspaceNode.java:368)at oracle.olap.awm.navigator.node.WorkspaceNode.getChildren(WorkspaceNode.java:341)at oracle.olap.awm.navigator.node.BaseNodeModel.refreshData(BaseNodeModel.java:74)at oracle.olap.awm.navigator.node.BaseNodeModel.dTreeItemExpanding(BaseNodeModel.java:221)at oracle.bali.ewt.dTree.DTreeDeferredParent.__fireExpansionChanging(Unknown Source)at oracle.bali.ewt.dTree.DTreeDeferredParent.setExpanded(Unknown Source)at oracle.olap.awm.navigator.node.BaseNode.expandHelper(BaseNode.java:2186)at oracle.olap.awm.navigator.node.BaseNode.access$400(BaseNode.java:109)at oracle.olap.awm.navigator.node.BaseNode$ExpansionThread.run(BaseNode.java:2136)Caused by: java.lang.NullPointerExceptionat oracle.AWXML.AW.readAWDefinitions(AW.java:1313)... 11 more
For the above issue, I have the following questions to seek your help on:
1. First, obviously, to know what is wrong with the usage of "joinchars" in this scenario.
2. If we use Oracle OLAP Calculations v1.2.5 to define any calculations, and if for some reason, the calculation is not defined successfully, is there any way to see what went wrong and where (this is because if your calculation definition fails, the Oracle OLAP Calculations v1.2.5 utility just exits out without giving any significant information on the reason for failures).
3. When we create any new calculation and then click on “Define Calculations” button, the Oracle OLAP Calculations v1.2.5 utility prompts us with the message “Do you want to update the AW views after creating the calculation (Y/N)? – Can you please help me with the details on the implications of stating a Y or N to this message.
Any help on these questions is much appreciated.
Thanks and Regards,
Piyush

Piyush..
The Error you get on using the rpr command is a display error, its not a functionality issue. Think of this as something similar to the sqlplus buffer overflow issue if you have a pl/sql program which outputs a lot of dbms_output.put_line statements.
So if you get a display error, restrict the cube or the dimensions to a reasonable number and check your output. Example: Take every user dimension and restrict them to a few values... (say, 5 products, 1 channel, 1 location, 1 organization, 2 time periods)..
Rpr <<expression>>
will return the expression for every cell in status.. Depending on the dimensions that the expression is based on, for every dimension depending on the number of values (members) in status, the <<expression>> is evaluated and output'ed.
No of cells in report is Cross product of each dimensions status (statlength).. For example above.. 5*1*1*1*2 = 10 cells.
Shw <<expression>>
will return the expression for the first cell in status.. 1st value (member) in status for every dimension that <<expression>> depends on.
Hence Shw <<expressions>> does not lead to a display error since the output is restricted (small).
Using the OLAP Calc utility to define the formula (the utility uses java olap apis), you may need to do something to protect the single quotes so that the expression gets evaluated with single quotes in the OLAP DML formula.
You can try...
joinchars(CUBE1_CMEAS1, \'ABC\', CUBE1_CMEAS2, \'XYZ\')
If above doesn't work, just ask for help regd how to translate a formula expression containing single quotes (formula is correct in OLAP DML) into the AW via the Spreadheet utility.
HTH
Shankar

Problem with OLAP DML

Dear All,
We are using OLAP DML to work with multi-dimensional data on an Analytic workspace. How do you access pre-stored multi dimensional variables set up in a analytic workspace, using OLAP API's.
How/Is it possible to load Cube data from a multi-dimensional variable ?
How or from where do we setup OLAP WORKSHEET to work with OLAP DML ??
Regards,
Subhankar

Jean-Marc,
I had an email from one of my colleagues in development and has kindly explained some errors in my previous posting. In 10.2 and earlier, relational import/export should do as good a job as EIF, except that these utilities are slower (due to the need to text encode the EIF data) and less granular (you can only export an entire schema at a time).
Fortunately, there is no need to worry about the various objects that comprise and AW. We manage all that for you directly inside the database.
However, the performance overhead is enough that for clients with the know-how, it's usually recommended to use EIF instead. That being said, the particular problem you are having seem extreme since you should not see a "15 minutes" to "hangs" slowdown when using relational import.
Have you tried monitoring the export job via Enterprise Manager to check the wait events which might be occuring when the system hangs? Are there any messages in the alert log?
It might be a good idea to open a TAR with Support to try and diagnose this issue.
Keith Laker
Oracle EMEA Consulting
OLAP Blog: http://oracleOLAP.blogspot.com/
OLAP Wiki: http://wiki.oracle.com/page/Oracle+OLAP+Option
DM Blog: http://oracledmt.blogspot.com/
OWB Blog : http://blogs.oracle.com/warehousebuilder/
OWB Wiki : http://wiki.oracle.com/page/Oracle+Warehouse+Builder
DW on OTN : http://www.oracle.com/technology/products/bi/db/11g/index.html

CAN i CALL OLAP DML THROUGH JDBC IN JAVA PROGRAM

I HAVE ORACLE V 9.2.0.1.0 AND AFTER CREATING A CUBE FROM ENTERPRISE CONSOLE I HAVE TO GO WITH EITHER SQL PACKAGES OR OLAP DML PROGRAMS ,SO PLS GIVE ME PROPER WAY AND LINK OF SOURCES TO WORK WITH OLAP DML IN JAVA PROGRAMS
CAN I USE AS PREPARED STATEMENT OR CREATE STATEMENT IN JAVA
TO CALL OLAP DML? BECAUSE NORMALLY WE MUST USE OLAP WORKSHEET TO EXECUTE OLAP COMMANDS
Message was edited by:
user594151

The access OLAP objects via Java you have two options. You can code directly against the OLAP API and I think someone has already provided you with the link to the supporting documentation. The OLAP API docs provide worked examples on access OLAP metadata and retrieving OLAP data. However, this is extremely low level coding. An alternative is to use the Business Intelligence Beans. Oracle Business Intelligence Beans enables developers to productively build business intelligence applications that take advantage of the rich OLAP functionality in the Oracle database. OracleBI Beans includes presentation beans - graph and crosstab, data beans - query and calculation builders and persistence services, which may be deployed in both HTML client and Java client applications. OracleBI Beans is seamlessly integrated into Oracle JDeveloper to provide the most productive development environment for building custom BI applications. For more information goto the the BI Beans home page
http://www.oracle.com/technology/products/bib/index.html
Specifically on executing OLAP DML see the following example:
Developing a Dashboard Application with Oracle BI Beans:
http://www.oracle.com/technology/products/bib/1012/viewlets/MS%20Developing%20Executive%20Insight.html
Adding controls to execute OLAP DML This viewlet demonstrates how to quickly and easily add the controls to execute OLAP DML models that can be executed to update the What If presentation.
http://www.oracle.com/technology/products/bib/1012/viewlets/Pages/What_If_Analysis_Part_4_viewlet_swf.html
Hope this helps
Keith Laker
Oracle EMEA Consulting
BI Blog: http://oraclebi.blogspot.com/
DM Blog: http://oracledmt.blogspot.com/
BI on Oracle: http://www.oracle.com/bi/
BI on OTN: http://www.oracle.com/technology/products/bi/
BI Samples: http://www.oracle.com/technology/products/bi/samples/

Interfacing JAVA and OLAP DML

I am not able to get the patch no 2323002 for WinXP/NT/2000. Our project requires to tap the data stored in the cube for analysis and reporting .We plan to use OLAP-DML as a work about.
Can we write OLAP-DML procedures to reply to the dynamic queries of the users and display ther results in JAVA i.e. interface it with JAVA? Also pls tell me how to create stored procedures. i am a new comer to OLAP. Pls help me out.
thanx in advance
Prahalad

Hi,
You should post this to the OLAP forum.
Thanks, Mark

Error while updating a custom Windows Azure Diagnostics configuration xml from powershell. "Invalid update to extension reference for role"

I am attempting to upload a manually edited WADConfig xml to my VM. The WAD service is functioning correctly, I needed to add some custom WinEventLogs. The prescribed steps result in an error.
What am I overlooking?
I am following these instructions:
Step 5: Remotely install Diagnostics on your Azure Virtual Machine
azure.microsoft.com/en-in/documentation/articles/cloud-services-dotnet-diagnostics/#virtual-machine
$storage_name = "wadexamplevm"
$key = "<StorageAccountKey>"
$config_path="c:\users\<user>\documents\visual studio 2013\Projects\WadExampleVM\WadExampleVM\WadExample.xml"
$service_name="wadexamplevm"
$vm_name="WadExample"
$storageContext = New-AzureStorageContext
-StorageAccountName $storage_name -StorageAccountKey $key
$VM1 = Get-AzureVM
-ServiceName $service_name -Name $vm_name
$VM2 = Set-AzureVMDiagnosticsExtension
-DiagnosticsConfigurationPath $config_path
-Version "1.*"
-VM $VM1 -StorageContext $storageContext
$VM3 = Update-AzureVM
-ServiceName $service_name -Name $vm_name
-VM $VM2.VM
Unfortunately, I am receiving this error:
Update-AzureVM : BadRequest: Invalid update to extension reference for role: XXXXXX and reference: IaaSDiagnostics.
What's missing from the above script?

Hi,
Since Azure SDK 2.5 uses the extension model the diagnostics extension, the configuration and the connection string to the diagnostic storage are no longer part of the deployment package and cscfg. All the diagnostics configuration is contained within the
wadcfgx. The advantage with this approach is that diagnostics agent and settings are decoupled from the project and can be dynamically enabled and updated even after your application is deployed.
Due to this change some existing workflows need to be rethought – instead of configuring the diagnostics as part of the application that gets deployed to each environment you can first deploy the application to the environment and then apply the diagnostics
configuration for it. When you publish the application from Visual Studio this process is done automatically for you. However if you were deploying your application outside of VS using PowerShell then you have to install the extension separately through
PowerShell.
There PowerShell cmdlets for managing the diagnostics extensions on a Cloud Service are -
Set-AzureServiceDiagnosticsExtension
Get-AzureServiceDiagnosticsExtension
Remove-AzureServiceDiagnosticsExtension
You can use the Set-AzureServiceDiagnosticsExtension method to enable diagnostics extension on a cloud service. One of the parameters on this cmdlet is the XML configuration file. This file is slightly different from the diagnostics.wadcfgx file. You can
create this file from scratch by either following the article that you are referring to or you can modify the wadcfgx file and pass in the modified file as a parameter to the powershell cmdlet.
To modify the wadcfgx file –
Make a copy the .wadcfgx.
Remove the following elements from the Copy:
<DiagnosticsConfiguration xmlns="http://schemas.microsoft.com/ServiceHosting/2010/10/DiagnosticsConfiguration">
<PrivateConfig xmlns="http://schemas.microsoft.com/ServiceHosting/2010/10/DiagnosticsConfiguration">
<StorageAccount name=" " endpoint="https://core.windows.net/" />
</PrivateConfig>
<IsEnabled>false</IsEnabled>
</DiagnosticsConfiguration>
Make sure the top of the file still has xml version and encoding –
<?xml version="1.0" encoding="utf-8"?>
Effectively you are stripping down the Wadcfgx to only contain the <PublicConfig> section and the <?xml> header. You can then call the PowerShell cmdlet along with the appropriate parameters for the staging slots and roles:
$storage_name = ‘
<storagename>’
$key= ‘<key>’
$service_name = '<servicename>'
$public_config = '<thepublicconfigfrom_diagnostics.wadcfgx>'
$storageContext = New-AzureStorageContext –StorageAccountName $storage_name –StorageAccountKey $key
Set-AzureServiceDiagnosticsExtension -StorageContext $storageContext -DiagnosticsConfigurationPath $public_config –ServiceName $service_name -Slot ‘Staging’ -Role ‘WebRole1’
Hope this helps !
Regards,
Sowmya

Problem with "SELECT...FOR UPDATE OF..." and "POST command" combination

Problem with "SELECT...FOR UPDATE OF..." and "POST command" combination
Problem in committing transactions in Multiple Forms (Oracle Forms) with POST built-in command:
Consider that the following statements are written in WHEN-WINDOW-CLOSED trigger of a called form.
Statements in called form (Form name: FORM_CHILD):
go_block('display_block') ;
do_key('execute_query') ;
-- Data from table_b will be populated in this block, based on the value of COLUMN_1 obtained
-- from TABLE_A.
-- Example: If the value of COLUMN_1 is 10, then all the matching records from TABLE_B, which
-- are inserted with value 10 in TABLE_B.COLUMN_1 will be fetched and shown here.
if user_choice = 'YES' then
commit ;
else
rollback ;
end if ;
Statements in calling forms:
There are two calling forms having following statements and it is going to call the above said called form.
CALLING FORM 1
Statements in KEY-COMMIT trigger:
post;
call_form(form_child, no_activate) ;
Statements in ON-INSERT trigger:
select column_1
from table_a
for update of column_1
where column_2 = 'X' ;
update table_a
set column_1 = column_1 + 1
where column_2 = 'X' ;
insert into table_b ...;
insert into table_b ...; Statements in KEY-COMMIT trigger:
post;
call_form(form_child, no_activate) ;
CALLING FORM 2:
Statements in ON-INSERT trigger:
select column_1
from table_a
for update of column_1
where column_2 = 'X' ;
update table_a
set column_1 = column_1 + 1
where column_2 = 'X' ;
insert into table_b ...;
insert into table_b ...;
insert into table_b ...;
Our understanding:
Assume that both the forms are running from two different machines/instances, issuing commit at the same time. In this case, forms will start executing the statements written in ON-INSERT trigger, the moment POST command is executed. Though the commit is issued at the same time, according to oracle, only one of the request will be taken for processing first. Assume that calling form 1 is getting processed first.
So, it fetches the value available in COLUMN_1 of TABLE_A and locks the row from further select, update, etc. as SELECT...FOR UPDATE command is used (note that NOWAIT is not given, hence the lock will be released only when COMMIT or ROLLBACK happens) and proceed executing further INSERT statements. Because of the lock provided by the SELECT...FOR UPDATE command, the statements in calling form 2 will wait for the resource.
After executing the INSERT statements, the FORM_CHILD is called. The rows inserted in to TABLE_A will be queried and shown. The database changes will be committed when user closes the window (as COMMIT is issued in its WHEN-WINDOW-CLOSED trigger). Then the SELECT...FOR UPDATE lock will be released and calling form 2's statements will be executed.
Actual happenings or Mis-behavior:
Calling form 2 starts executing INSERT statements instead of waiting for SELECT...FOR UPDATE lock. Also, the value selected from TABLE_A.COLUMN_1 is same in both the calling forms, which is wrong.
The rows inserted into TABLE_B are having similar COLUMN_1 values in calling form 2 and they are fetched and shown in the called form FORM_CHILD.
Note that in calling form 2 also POST only is issued, but the changes posted there are accessible in calling form 1 also, which is wrong.
Kindly suggest us as to how to fix above problem. It will be much use, if you can send us the information regarding the behavior of Oracle Forms POST built-in also.
Our mail ID: [email protected]
Thanks a lot in advance.

You have several problems:
1. On-Insert will ONLY run if you have created a new record in a base-table block. If you haven't done that, then the POST command will not cause it to run.
2. Select for update without a "no wait" will lock records for the first form, but when the second form tries this, it will hit the ORA-00054 exception, and will NOT wait. The only way you could make it wait is to issue an UPDATE sql command, which is not such a good way to go.
All POST does is issues SQL insert or update commands for any changes the user has made to records in a form's base-table blocks, without following with a Commit command.
Also understand that Commit is the same as Commit_Form, and Rollback is the same as Clear_Form. You should read up on these in the Forms help topics.

Updated OLAP DML Reference 10.2 posted to OTN

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