The Intersection of Big Data and Data Warehousing

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Richard Makara
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In today's data-driven world, managing and analyzing large volumes of data has become a necessity for organizations. Data warehousing, a tried-and-tested method of storing and managing data, is meeting its match in big data – an emerging field that deals with massive amounts of structured and unstructured data. The intersection of these two fields offers exciting possibilities for businesses looking to gain insights from their data. In this article, we'll explore how big data is challenging traditional data warehousing and how the two can work together to unlock the full potential of data.

What is Big Data?

Big Data is a term used to describe extremely large and complex datasets that traditional data processing software is unable to handle. It refers to the vast amounts of digital information being generated, collected, and stored every day. Big Data is characterized by its volume, velocity, and variety. This data can come from various sources, including sensors, social media, and transactions, among others.

The analysis of Big Data can provide valuable insights into customer behavior, market trends, and operational efficiencies, among other areas. Advances in technology have enabled the processing and analysis of Big Data at a scale that was previously not possible.

What is Data Warehousing?

Data Warehousing is a process of collecting, storing, and managing an organization's data in a central repository. It is designed to facilitate business intelligence activities, such as reporting and data analysis. Here are some key points to understand data warehousing:

  • Data is extracted from a variety of sources, including transactional databases, web applications, and other systems.
  • The data is transformed and loaded into a central repository, typically a data warehouse database.
  • The data is organized into dimensions and facts, which provide a framework for data analysis.
  • The data warehouse is designed to support complex queries and reporting, as well as online analytical processing (OLAP) and data mining.
  • Data warehousing helps organizations gain insights into their operations, customers, and markets, and make data-driven decisions.
  • Data warehousing is often used in conjunction with business intelligence and analytics tools to provide a complete solution for data analysis and reporting.
  • Data warehousing is an essential component of modern data architecture, along with data lakes, data marts, and other data storage and processing systems.

Benefits of Data Warehousing

Some benefits of data warehousing are:

  • Data Integration: Data coming from different sources can be integrated and transformed in the data warehouse, which allows users to combine data from different departments, systems, and locations in a consistent way.
  • Data Quality: Data can be cleansed, standardized, enriched and verified in the data warehouse, which improves the data quality and reliability. Clean and reliable data leads to better decision making.
  • Historical Analysis: Data warehousing allows users to track and analyze historical data over time, which provides insights into trends, patterns, and changes. Historical analysis helps businesses to identify opportunities and risks and make informed decisions.
  • Query and Reporting: Data warehousing provides a platform for ad hoc queries and real-time reporting, which enables users to get instant access to relevant information and insights. This saves time and enhances productivity.
  • Data Security: Data warehousing comes with built-in security features that protect sensitive data from unauthorized access or manipulation. Data security ensures the confidentiality, integrity, and availability of data.

In summary, data warehousing can help businesses to integrate and transform data from different sources, improve data quality, track and analyze historical data, provide platforms for ad hoc queries and real-time reporting, and ensure data security. These benefits enable businesses to make better decisions, optimize operations, and improve customer satisfaction.

The Intersection of Big Data and Data Warehousing

Big Data Challenges for Traditional Data Warehousing

Traditional data warehousing faces several challenges when dealing with big data, including:

  1. Volume: The sheer volume of data generated by enterprises can be overwhelming for traditional data warehousing systems. These systems were designed to handle smaller amounts of structured data. With the rise of big data, traditional data warehousing systems have had to adapt to handle massive amounts of unstructured data.
  2. Velocity: Data is being generated at an unprecedented rate, and it's arriving at an ever-increasing pace. Traditional data warehousing systems were not designed to keep up with the speed of data ingestion. As a result, businesses are often unable to analyze data as quickly as they need to.
  3. Variety: Big data comes in many forms, including structured, unstructured, and semi-structured data. Traditional data warehousing systems were designed to handle structured data, making it difficult for businesses to store, manage and analyze unstructured data like social media data, emails, and images.
  4. Cost: Traditional data warehousing systems are expensive to set up, scale, and manage. Companies that want to adopt big data technologies are therefore challenged by high costs.
  5. Complexity: Integrating big data with traditional data warehousing systems can be challenging, requiring a substantial investment of time and resources. Legacy systems and infrastructure make adoption challenging.
  6. Security: Big data brings with it security challenges.

Traditional data warehousing systems were designed with a closed system where data could be secured, but when dealing with big data, it is challenging to secure data in real-time.

These challenges emphasize the need for businesses to implement big data solutions that can handle unstructured data and support real-time analytics.


Volume, in the context of Big Data and Data Warehousing, refers to the quantity of data being generated and stored. This includes data from various sources like social media, IoT devices, transactions, and more. Here are some key points to keep in mind:

  • The volume of data being generated is increasing exponentially, making it difficult to store and analyze using traditional methods.
  • Data Warehousing can address this challenge by providing a centralized repository for storing large volumes of structured data in a cost-effective way.
  • However, data warehouses are typically designed to handle structured data, which means they may not be able to handle the unstructured data that comes with Big Data.
  • Big Data technologies like Hadoop and Spark can help store and process large volumes of unstructured data.
  • To accommodate large volumes of data, organizations may need to adopt scalable infrastructures like cloud computing or distributed computing.
  • Managing the volume of data requires careful planning and organization, including data governance policies, metadata management, and data quality controls.


Velocity refers to how fast data is being generated and processed. With the rise of sensors, social media, and other connected devices, data is being generated at an unprecedented rate. This means that businesses need to be able to process this data quickly in order to make informed decisions. Traditional data warehousing solutions are often too slow to keep up with the velocity of big data.

This is where new technologies like Apache Hadoop come in, as they are designed to handle high velocity data. In order to take advantage of the benefits of big data, it is essential for businesses to have a fast and efficient data processing pipeline.


Big Data Solutions for Data Warehousing

Big Data Solutions for Data Warehousing refer to the methods and tools used to manage and process large volumes of unstructured data in a data warehouse environment. Some popular solutions include:

  1. Apache Hadoop: An open-source software framework used for distributed storage and processing of big data. Hadoop can handle large volumes of unstructured data and is highly scalable.
  2. NoSQL databases: These databases are designed to handle unstructured data and are highly scalable. They use a variety of data models and can be used to store and retrieve data quickly.
  3. Data Virtualization: This involves creating an abstraction layer between data sources and applications, enabling them to access and use data from multiple sources without having to move it into a single physical location.

Big Data Solutions for Data Warehousing are important because they allow companies to gain insights from vast amounts of data that traditional data warehousing solutions may not be able to handle. However, implementing these solutions can be challenging, and companies need to ensure that they have the right talent, processes, and infrastructure in place to make the most of their investment in Big Data Solutions for Data Warehousing.

Apache Hadoop

Apache Hadoop is an open-source software framework for storing and processing large amounts of data. It uses a distributed computing model in which data is spread across multiple machines, called a cluster. The Hadoop framework is designed to handle complex data sets and enable distributed processing of large data sets across clusters of computers. It consists of two main components - the Hadoop Distributed File System (HDFS) and MapReduce.

HDFS is a distributed file system designed to store large data sets across clusters. It stores data in a way that makes it easily accessible and retrievable from multiple nodes in the cluster. HDFS provides features like replication and data locality, which ensures that data is always available and easily accessible.

MapReduce is a programming model used for processing large data sets in a distributed manner. It allows developers to write programs that can process large data sets in parallel across multiple nodes in a Hadoop cluster. MapReduce breaks the data into smaller parts, distributes these smaller parts across the cluster, and then performs the processing in parallel.

Apache Hadoop has become popular due to its ability to handle large amounts of data, its scalability, and its flexibility. It has been used by large companies like Yahoo!, Facebook, and LinkedIn to process and store large amounts of data. Hadoop is also used in the healthcare industry, financial services, and many other industries.

However, the Hadoop framework requires specialized skills and expertise to implement and maintain, which has led to the development of Hadoop distributions provided by companies like Cloudera, Hortonworks, and MapR. These distributions are designed to make it easier to install, configure, and manage Hadoop clusters and provide additional features and tools on top of the core Hadoop framework.

NoSQL databases

NoSQL, or "not only SQL", databases are a type of database that doesn't use traditional SQL relational database management systems. They are used to store unstructured data such as documents, videos, images, and other non-tabular data.

Unlike traditional relational databases, NoSQL databases can handle large volumes of unstructured data efficiently and cost-effectively. This structure is known as a "non-relational" database management system, where data is stored in a distributed system, which offers better scalability and availability.

NoSQL databases store data using various models, such as a document, key-value, graph, or column family. Each model is designed to fit the specific needs of an application and maximize performance. For instance, a key-value store is ideal for storing data that has a unique key, like the cart items in an e-commerce website.

NoSQL databases are becoming popular due to their ability to handle large volumes of data and their flexibility to store unstructured data. This makes them particularly useful for applications that require fast and efficient access to large amounts of data.

Some popular NoSQL databases include MongoDB, Cassandra, and Amazon DynamoDB. Each of these databases has its own set of features, strengths, and weaknesses. They can be scaled horizontally and vertically, which offers flexibility when it comes to managing resources.

In conclusion, NoSQL databases are an effective way to store large volumes of unstructured data efficiently. They offer flexibility, scalability, and availability to suit any application's specific needs. NoSQL databases are rapidly becoming a standard choice for organizations looking to manage big data in a distributed environment.

Data Virtualization

Data virtualization is a modern approach to integrating data from multiple sources, such as databases, cloud storage, and big data platforms.

It allows users to access and query data from different sources as if they were part of a single database.

Data virtualization technology hides the complexity of data integration by creating an abstraction layer that provides a unified view of the data.

This layer maps the various data sources, and allows users to query the data in real-time without having to copy or move it.

Data virtualization can provide a variety of benefits, such as faster time-to-insight, improved data governance, better data security, and reduced data duplication.

It also allows organizations to maximize their existing investments in data infrastructure and analytics tools.

Overall, data virtualization enhances the agility and flexibility of data management, enabling organizations to react quickly to changing business needs while maintaining a single source of truth.

Advantages of Combining Big Data and Data Warehousing

The integration of Big Data and Data Warehousing brings tremendous advantages for organizations. Big Data can complement Data Warehousing by providing ad-hoc data analysis and insights on vast amounts of unstructured and semi-structured data from various sources like social media, IoT devices, and clickstreams. On the other hand, Data Warehousing offers a structured, secure, and scalable environment for storing, processing, and managing large, complex, and historical datasets.

By combining these two technologies, businesses can leverage the strengths of both to gain a holistic view of their data. This integrated approach can help organizations make informed decisions, improve customer experience, optimize operations, reduce risks, and identify new revenue streams. For instance, companies can use Big Data analytics to identify patterns and trends in customer behavior, and then store the relevant data in the Data Warehouse for further analysis and reporting.

Moreover, the integration of Big Data and Data Warehousing can improve data governance, data quality, and data integration. It can automate data processing and improve data security and compliance by centralizing data management and providing better control over data access, usage, and retention. Additionally, it can improve collaboration and data sharing across departments and teams, enabling organizations to break down data silos and accelerate innovation.

To summarize, the integration of Big Data and Data Warehousing can be a valuable solution for organizations seeking to unlock new insights from their data. By leveraging the strengths of both technologies, businesses can gain a holistic view of their data, make informed decisions, improve operations, and drive innovation.

Key takeaways

"Key takeaways" is a summary of the article's most important points. It is a brief conclusion that highlights the main message of the article. It is intended to help readers remember the most important information.

In summary, the intersection of big data and data warehousing provides many benefits. By combining these two concepts, organizations can gain valuable insights and make informed decisions. However, this intersection comes with its own set of challenges. Traditional data warehousing solutions may not be able to handle the volume, velocity, and variety of big data.

To overcome these challenges, organizations should consider adopting new solutions, such as Apache Hadoop, NoSQL databases, and data virtualization. These solutions can help organizations store and analyze big data more efficiently.

The advantages of combining big data and data warehousing are significant. By doing so, organizations can gain a more comprehensive view of their data, which can lead to more accurate predictions and better decision-making.

In conclusion, the intersection of big data and data warehousing has the potential to transform the way organizations store and analyze data. By adopting new solutions and overcoming the challenges associated with big data, organizations can gain a competitive advantage and make better decisions.

Key takeaways

The world of big data and data warehousing has now intersected. Big data brings in large volumes of structured and unstructured data that cannot be processed through traditional data warehousing methods. In order to handle such vast volumes of information, companies are shifting to new technologies such as Hadoop and NoSQL databases. Data warehouses, on the other hand, are becoming more complex with the addition of big data tools.

In response, companies are building hybrid data systems that leverage both data warehouses and big data platforms. As data sets continue to grow at an exponential rate, companies must embrace this new intersection to remain competitive.


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