Data Services In New Haven CT At NW Database Services

Data Cleaning, Data Cleansing, Data Scrubbing, Deduplication, Data Transformation, NCOA, Mail PreSorts, Email Verification, Email Append, & Phone Append Services in New Haven Connecticut

Get The Best Database Services In New Haven Connecticut

We provide data services to businesses and organizations in New Haven CT and all Connecticut 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 New Haven CT 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!

9 + 11 =


Sandersville, GA 31082


gch [@]
To use email, remove the brackets


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Information About Data Cleaning And Data Services

Relational vs. Non-relational Databases

After we’ve discussed the basics of a relational database and its structure, you may be able to identify the main differences between non-relational and relational databases. It all comes down to how we organize the stored data.

Structured non-relational databases cannot be created. This format allows you to add any data to your database without having to create a schema. They can even be totally unrelated! You can add text and images to documents. There are no limitations on the data types that can be added. NoSQL databases, for example, do not require a schema and store data in a single type of data structure, most commonly JSON. You can have a variety of non-relational database types, including ones that support dictionary-like key-values and documents.

It is possible to wonder when users may prefer a non-relational data base. These are generally reasons for users not liking relational databases. Non-relational databases are faster because they are unstructured. This is important when data retrieval must be optimized, such as when we need to create analytical reports often.

Non-relational databases can also be useful when it is not clear what type of data you will need or how the data will change over time. Because we don’t have to create a schema, we can make changes as needed.

What Is the Use of SQL in Relational Database Management Systems?

SQL is often mentioned with databases, you might have noticed. SQL queries are a great way for technical and non-technical users to easily transform tables, merge data, and retrieve data from databases with just a few lines.

Let’s take the Shoe Company database. It has two tables: Customer and Marketing. The Customer table contains these columns: Customer ID and Mailing Address; Purchase ID and Purchased Item ID; Transaction Amount. The Marketing table contains these columns: Promotional Campaign, Customer ID, Transaction Amount, Purchase ID.

Imagine that you are an analyst assigned to determine if a back-to school sale promotional campaign had any effect on sales of shoes. This question could be approached in many different ways. One approach is to compare the amount of your top five most spending customers buying during a sale period to the period without a sale.

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 New Haven CT Information

New Haven CT

New Haven is a U.S. city. It is located in New Haven Harbor, Connecticut on the northern shores of Long Island Sound. It is part of New York City’s metropolitan area. According to the 2020 U.S. Census, New Haven has a population totaling 134,023 and is third in Connecticut, after Bridgeport, Stamford, and Greater New Haven.


New Haven was the first planned city in the United States. Eight streets were laid out on a 4-by-4 grid, creating the “Nine Square Plan”. The New Haven Green is the central block. It covers 16 acres (6 ha) in the middle of Downtown New Haven. The Green is now a National Historic Landmark. The American Planning Association has designated the “Nine Square Plan” as a National Planning Landmark.


According to the Koppen classification New Haven is cfa. This means that it has a humid subtropical climate. However, it borders on a hot summer humid continental climate. It has both hot and humid summers as well as cool to cold winters. The weather is hot and humid from May through September. On 70 days per annum, it averages 80 degrees Fahrenheit (27 degrees Celsius). The Bermuda High is a southern flow of warm, humid air that produces frequent thundershowers in summer.


According to the U.S. Census Bureau, there was a population of 129 779 in 2010. There were 47,094 households, and 25854 families living within New Haven. The density of the population was 6,859.8 people per square mile (2.648.6/km2). There were 52 941 housing units with an average density of 2,808.5/square mile (1,084.4/km2).


New Haven is located at the intersection of Interstate 95 and Interstate 91 on the coast. This provides southwards access to New York City and the western coast of Connecticut. It also allows for eastwards access to Rhode Island and eastern Massachusetts. I-95 is notorious for its traffic jams that increase with distance to New York City. It crosses the Quinnipiac River via “Q Bridge” on the east side. This can often cause major traffic congestion. I-91 is generally less congested than I-95, but it can be a nightmare at times when I-95 is busy.

Top Businesses

New Haven’s economy was originally based on manufacturing. But the postwar period saw rapid industrial decline. The Northeast was particularly affected by the effects of this recession. New Haven was one of the medium-sized cities that had large working-class populations. The economic shift was further influenced by Yale University’s expansion and growth. Today, more than half (56%) the city’s economy is made up of services. Yale is the largest employer in the city, followed closely by Yale – New Haven Hospital.


New Haven CT Map