Verification of data quality in migration process

Hi All,
I am in a project that migration data from SQLserver to Oracle database. But my quesion is not performance but the check of data quality.
My procedures to move data is: a) Extract data to a flat file from SQLserver via a GUI tool b) ftp it to UNIX c) sqlldr to Oracle temp tables d) copy the data from temp tables to fact tables.
My point is to only check the sqlserver log file and sqlldr log file, if no error in them and the row counts match in SQLserver and Oracle, then we can say a,b,c are successful.
And since d is a third party stored procedure, we can trust its correctness. I don't see any point where the error could happen.
But the QA team think we have to do at least two more verification: 1. compare some rows column by column 2. sum some numeric columns to compare the results.
Can someone give me some suggestion on how you check the data quality in your migration projects, please?
Best regards,
Leon

Without wishing to repeat anything that's already been said by Kim and Frank this is exactly the type of thing you need checks around.
1. Exporting from SQL Server into a CSV
Potential to loose precision in data types such as numbers, dates, timestamps, or in character sets (unicode, utf etc)
2. Moving from windows to unix
Immediately there are differences in EOL characters
Potential for differences in character sets
Potential issues with incomplete ftp of files
3. CSV into temp tables with SQL Loader
Potential to loose precision in data types such as numbers, dates, timestamps, or in character sets (unicode, utf etc)
Potentail to have control files not catering for special characters
4. Copy from temp tables to fact tables
Potential to have column mappings wrong
Potential to loose precision in data types such as numbers, dates, timestamps, or in character sets (unicode, utf etc)
And I'm sure there are loads more things that could go wrong at any stage. You have to cater not only for things going wrong in the disaster sense i.e. disk fails, network fails, data precision lost, but also consider there could be obscure bug in any of the technologies you're working with. They're not things you can directly predict but you should have verification in place to make sure you know if something has gone wrong - however subtle.
HTH
David

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Hi Experts,
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Cheers
indu

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Hi guys,
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Hello Ida,
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Hello,
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Best regards
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Regard,
Ida.

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Country-specific thresholds to determine when to accept the verification result (and therefore to change the input address) based on the confidence level of the API
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Hi,
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Hazbleydi C.

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Popularity trend/usage report is not working in sp2013. Data was not being processed to EVENT STORE folder which was present under the Analytics_GUID folder.

Hi
I am working in a sharepoint migration project. We have migrated one SharePoint project from moss2007 to sp2013. Issue is when we are clicking on Popularity trend > usage report, it is throwing an error.
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In log viewer I have found the bellow error.
HIGH -
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Hi Nabhendu,
According to your description, my understanding is that you could not use popularity trend after you migrated SharePoint 2007 to SharePoint 2013.
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http://blog.fpweb.net/troubleshooting-sharepoint-2013-web-analytics/#.U8NyA_kabp4
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Wendy Li
TechNet Community Support

Data quality check or automation

Apart from passing the report to the user for testing are there ways the process can be automated for a data quality check and how?
Thanks.

Hi Dre01,
According to your description, you want to check the report data quality. Right?
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Reference:
Create, Modify, and Delete Standard Subscriptions (Reporting Services in Native Mode)
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Best Regards,
Simon Hou

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Hi All,
I have utilized the DQS for my organization Data Cleansing project. And we have built Data Quality reports using DQ output.
We also use Profiler Summary report in the Activity Monitor, but this is manual process where Data owners need to manually enter into the Activity monitor and generet the porofiler report.
My question is, which DQS table store the this Profiler summary report where by I can automate the report through that source.
Here is the screenshot of the report we are looking at, we need to find out which DQS source table got this information.
Thanks for the help

0
Hi All,
I have utilized the DQS for my organization Data Cleansing project. And we have built Data Quality reports using DQ output.
We also use Profiler Summary report in the Activity Monitor, but this is manual process where Data owners need to manually enter into the Activity monitor and generet the porofiler report.
My question is, which DQS table store the this Profiler summary report where by I can automate the report through that source.
Here is the screenshot of the report we are looking at, we need to find out which DQS source table got this information.
Thanks for the help

Data Quality Services - Summary report

Hi,
Is anyone has a idea about which table is stored summary information comming out from Activity monitor?
the example is below:
when I exported the data the summary as follows:
My pourpose is to automate this report if it is stored on DQS data bases?
Field
Domain
Corrected Values
Suggested Values
Completeness
Accuracy
EmployeeName
EmpName
5 (0.06%)
0 (0%)
7303 (88.73%)
8222 (99.89%)
EmployeeKey
EmployeeKey
1 (0.01%)
0 (0%)
8231 (100%)
8215 (99.81%)
CostCentreKey
CostCentreKey
0 (0%)
0 (0%)
8231 (100%)
8141 (98.91%)
CostGroupKey
CostCentreGroupKey
0 (0%)
0 (0%)
7188 (87.33%)
7094 (86.19%)
LeaveGroupKey
LeaveGroupKey
0 (0%)
0 (0%)
8231 (100%)
8129 (98.76%)
EmployeeStatusKey
EmployeeStatusKey
0 (0%)
0 (0%)
8231 (100%)
8212 (99.77%)
EmployeePositionNumber
EmployeePositionNumber
0 (0%)
0 (0%)
8214 (99.79%)
8117 (98.61%)
EmployeeEmail
EmployeeEmail
0 (0%)
0 (0%)
5133 (62.36%)
8220 (99.87%)
HoursPerWeek
HoursPerWeek
0 (0%)
0 (0%)
8214 (99.79%)
8213 (99.78%)
Gender
Gender
0 (0%)
0 (0%)
8231 (100%)
8231 (100%)
EmployeeEFT
EmployeeEFT
0 (0%)
0 (0%)
8214 (99.79%)
8213 (99.78%)
EmployeePostCode
EmployeePostCode
0 (0%)
0 (0%)
8153 (99.05%)
8124 (98.7%)
EmployeeSuburb
EmployeeSuburb
133 (1.62%)
0 (0%)
8152 (99.04%)
8134 (98.82%)
ReportToManager
ReportToManager
0 (0%)
0 (0%)
7037 (85.49%)
7036 (85.48%)
PositionClassificationCode
PositionClassificationCode
0 (0%)
0 (0%)
8144 (98.94%)
8144 (98.94%)
PositionClassificationDesc
PositionClassificationDesc
0 (0%)
0 (0%)
8144 (98.94%)
8144 (98.94%)
PositionLocation
PositionLocation
0 (0%)
0 (0%)
8214 (99.79%)
8122 (98.68%)
Age
Age
0 (0%)
0 (0%)
8231 (100%)
8229 (99.98%)
CurrentClassCode
CurrentClassCode
0 (0%)
0 (0%)
7908 (96.08%)
7906 (96.05%)
CurrentCLassDescription
CurrentCLassDescription
0 (0%)
0 (0%)
7908 (96.08%)
7907 (96.06%)
EmpState
EmpState
0 (0%)
0 (0%)
8153 (99.05%)
8137 (98.86%)

0
Hi All,
I have utilized the DQS for my organization Data Cleansing project. And we have built Data Quality reports using DQ output.
We also use Profiler Summary report in the Activity Monitor, but this is manual process where Data owners need to manually enter into the Activity monitor and generet the porofiler report.
My question is, which DQS table store the this Profiler summary report where by I can automate the report through that source.
Here is the screenshot of the report we are looking at, we need to find out which DQS source table got this information.
Thanks for the help

Data Quality Report Error

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Any idea how this can happen?
Regards,
    Martin
Edited by: Martin Bernhardt on May 19, 2009 11:03 AM

Martin,
can you try to change the Settings of your Internet Explorer:
Tools --> Internet Options --> General/Appearance/Languages
Add "English (United States) [en-US]" and move it to first place above the "German (Germany) [de]" entry?
Niels

Migrating from Oracle to SQL Server - data won't migrate but no errors

I'm attempting to migrate a database from an Oracle 11g (11.1.0.7.0 64-bit) database to a SQL Server 2008 R2 (10.50.4033.0). I'm using SSMA, and the Oracle tool was installed on the target SQL Server by the DBA. I've completed all the steps up
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Migrating data...
Analyzing metadata...
Preparing table POLICYS.LOGINS...
Preparing data migration package...
Starting data migration Engine
Starting data migration...
Data migration operation has finished.
   0 table(s) successfully migrated.
   0 table(s) partially migrated.
   1 table(s) failed to migrate.
Then a summary box appears, and there is a red X next to the table (I'm trying to just convert 1 small table to begin with.) What immediately appears to be wrong is that the "To" table is blank.
I've attempted this multiple times, different tables (initially tried all tables) and tried both Server Side and Client Side migrations with the same result. There are no errors or warnings on the Error List.
I've found another online post where the user had the same issue, but in that instance they fixed it by changing the case of the table name. I tried that, but it didn't help. I'm not sure what is wrong that it won't migrate any data. Any help
is appreciated. TIA
-George

Hello,
Please review the migration process steps from the following tutorial:
http://blogs.msdn.com/b/ssma/archive/2010/08/27/migrating-oracle-s-sample-hr-schema.aspx
You can also get help writing an email to
[email protected]
For more information, please read the following article:
http://msdn.microsoft.com/en-us/library/hh313173(v=sql.110).aspx
Hope this helps.
Regards,
Alberto Morillo
SQLCoffee.com

Verification of data quality in migration process

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