How to standardize data using Data Quality Services?


I was playing with Data Quality Services when I though that it would be nice if I could implement what I had learned and create a quick demo that shows how to standardize data using the technology. So here it goes:

Note: This is not a step by step Guide – I am assuming that you are aware of different pieces of DQS. I am going to post a brief outline of how did I go about implementing a quick demo.

Technology used:

1) SQL Server 2012 Data Quality Services

2) SQL Server Integration services to show the DQS cleansing  component in action.


We want to standardize to Gender to have only two values M & F – but now data coming from two files creates data inconsistency issues:

Two files that look like this:

File 1: (Excel)

1 sql server data quality services data source 1 excel file

File 2: (CSV)

2 sql server data quality services data source 2 csv file


Let’s see how SQL server 2012’s data quality services would help us solve this problem:

1) I created a Knowledge base with a domain Gender and created domain values that looks like this:

3 data quality services domain management values sql server

2) Tested the Knowledge base quickly by creating a Data Quality Project. It worked!

3) Switched to SSIS and created a Data Flow which uses following components:

4 data quality services sql server integration services

What would be interesting to you to see mapping tab in the DQS cleansing transformation component, so here it is:

5 data quality SSIS data cleaning transformation

5) And let me show you the Target File – note that you can choose to NOT have Gender_Source, Gender_Status & Record Status. The column of interest is Gender_Output

6 standardized output SSIS gender data quality services

That’s about it for this post. I hope this helps!

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