Data Services In Rochester MN At NW Database Services

Data Cleaning, Data Cleansing, Data Scrubbing, Deduplication, Data Transformation, NCOA, Mail PreSorts, Email Verification, Email Append, & Phone Append Services in Rochester Minnesota

Get The Best Database Services In Rochester Minnesota

We provide data services to businesses and organizations in Rochester MN and all Minnesota cities. With over 3 decades of experience in the database business, you won’t find a company that can solve your specific database needs with higher quality service or better prices than Northwest Database Services. No matter what your specific need is, our team will find a data service solution to suit your situation.


More Cities and States Where We Offer Data Cleaning Services

We Are A Full Service Data Services That Can Help You Run Your Business

Northwest Database Services is a full-spectrum data service that has been performing data migration, data scrubbing, data cleaning, and de-duping data services for databases and mailing lists, for over 34 years. NW Database Services provides data services to all businesses, organizations, and agencies in Rochester MN and surrounding communities.

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What We Do

Database Services

When you need your data to speak to you regarding your business’s trends, buying patterns or just whether or not your customers are still living.

Data Transformation

We provide data transformation services for Extract, Transform and Load (ETL) operations typically used in data migration or restoration projects.

De-duplication Service

Duplication of data plagues every database and mailing list. Duplication is inevitable, constantly keeps growing and erodes the quality of your data.

Direct Mail - Presorts

It’s true the United States Postal Service throws away approximately thirty five percent of all bulk mail every year! Why so much? Think: “Mailing list cleanup.

Email-Phone Append

With access to more than 500 million email addresses, Northwest Database Services uses one of the most comprehensive and unique data sets in the industry.


Over 40 million Americans change their address annually, which makes us do the work to maintain a high-quality mailing list while you focus on your business.

We Are Here To Help!

11 + 5 =


Sandersville, GA 31082


gch [@]
To use email, remove the brackets


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Information About Data Cleaning And Data Services

What Is Data Wrangling For Data Cleaning?

Structured Vs. Unstructured Data: What’s the Difference?

Data analysts must be able to differentiate between data types. All types of big data can be classified into one of two categories: unstructured or structured data.

Data should be organized into tables, columns, rows in an ideal world. They are neatly stored in a warehouse or relational database. You can then use this information to extract useful information. However, data seldom starts this way in reality. Raw data, which is unstructured, can be a stream of chaotic information stored in large, disorganized repositories called data lakes. You’ll have trouble applying traditional analytics to this kind of data. First, your data must be in order and cohesive before you can gain insights. Once this is complete, you can begin targeted activities such as data mining (identifying patterns in data) or predictive analysis (testing hypotheses).

What’s the Difference Between Qualitative and Quantitative Data?

It is important to understand qualitative and quantitative data before we can fully appreciate the differences between structured data and unstructured data. We’ve written an entire post about this topic, but here is the summary:

In a simple table, the differences between quantitative and qualitative data are displayed side-by-side

Quantitative data refer to quantities. They can be measured, or given numerical values. You can use quantitative data to show dates, times and weights.

Qualitative data are, however, primarily descriptive. These data are things that can be observed, but not necessarily measured. These include blood types, brand names, car brands, product reviews, names, eye colors, and even eye color. Although qualitative data can contain numerical values, they are often descriptors and classifiers rather than following any established measurement scale. For more information, see ordinal data.

These definitions don’t have to be complicated. Understanding the differences between qualitative and quantitative data can help you distinguish between structured and non-structured data. As we continue, this will become apparent.

What Is Structured Data?

Structured data refers to data that fits within a predefined data structure. It is a predefined data model that defines data types and rules for accessing and processing those data. Structured data can be any clearly labeled information database (excel file, SQL database or data warehouse). This data is stored in tables with clear relationships between rows, columns, and tables. It is easy to analyze and mine this data. SQL (Structured Query Language) is a common tool for this purpose.

Structured data can be easily sorted and labeled because it is well documented. Let’s take, for example, a customer email campaign. There may be a lot of customer information in your customer relationship management system (CRM), including phone numbers, invoices, and history of interactions.

Northwest Database Services has 34+ years experience with all types of data services, including mail presorts, NCOA, and data deduplication. If your database systems are not returning poor data, it is definitely time for you to consult with a data services specialist. We have experience with large and small data sets. Often, data requires extensive manipulation to remove corrupt data and restore the database to proper functionality. Call us at (360)841-8168 for a consultation and get the process of data cleaning started as soon as possible.

NW Database Services
404 Insel Rd
Woodland WA 98674

City of Rochester MN Information

Rochester MN

Rochester is a U.S. city and the county seat for Olmsted County. The city, which is situated on rolling bluffs along the Zumbro River’s South Fork in Southeast Minnesota and the birthplace of the Mayo Clinic, is located on these hills.


The Rochester area was home to several indigenous peoples, including Ojibway, Dakota, and Winnebago. It was originally a stop on stagecoaches between Saint Paul, Minnesota and Dubuque (Iowa) near the Zumbro River. George Head and Henrietta Head founded the community in 1854. They built a log cabin called Head’s Tavern and named it after their hometown of Rochester, New York. The Winona and St Peter Railroad opened its doors in October 1864. It brought new residents and opportunities to businesses and stimulated growth. Dr. William W. Mayo was appointed the Civil War’s examining surgeon for Union draftees.


The climate in the Twin Cities is slightly warmer and less humid than the Twin Cities. It also has a higher elevation and no UHI. There are four seasons in the city. Rochester receives an average of 33.02 inches (839mm) of rain and 51.9 inches (1132 cm) snowfall each year. Winter months are characterized by significant snow accumulation. Transitional seasons are spring and fall. There is a warming trend in spring and cooling trend in fall. It is not unusual to see snowfall in the spring, but it is possible.


The population was 121 395 at the 2020 census. 2,187.5 people per square mile (844.6/km2) was the population density. The average density of 53,210 housing units was 958.8/square mile (370.2/km2). The city’s racial makeup was 73.2% white, 8.9% Black or African American and 7.9% Asian. There were also 0.4% Native American, 0.1% Pacific Islander and 2.9% from other races. 6.6% of the population came from more than one race. The ethnicity of the city was 6.6% Hispanic/Latino of any race.


Three U.S. highways serve Rochester: U. S. 14; U. S. 52; and U. S.63. The southern border of Rochester is bounded by Interstate Highway 90, State Highway 30, and State Highway 30. Olmsted County Highway 22 also serves the city. Skyways and subterranean walkways connect most downtown buildings. This is a common way for residents to escape winter storms. Rochester Public Transit manages public bus transit. First Transit manages its operations. Rochester encourages cycling on its many trails. All city buses are equipped with bike carriers to make it easy to transport bikes.

Top Businesses

Rochester’s core economy is the Mayo Clinic. It employs 34,180 people annually and attracts more than 2,000,000 visitors each year. Nearly all of downtown is occupied by the clinic and its many facilities. The largest employer in Minnesota is Mayo Clinic, with the exception of the state government. Other important employers include the Rochester Federal Medical Center and other care providers.


Rochester MN Map