Data-Warehouse

Big Data Fundamentals: Storage, Processing, and Analysis Big data means large and fast-changing data from many sources. The value comes when we store it safely, process it efficiently, and analyze it to gain practical insights. Three pillars guide this work: storage, processing, and analysis. Storage foundations Storage must scale with growing data and stay affordable. Many teams use distributed file systems like HDFS or cloud object storage such as S3. A data lake keeps raw data in open formats like Parquet or ORC, ready for later use. For fast, repeatable queries, data warehouses organize structured data with defined schemas and indexes. Good practice includes metadata management, data partitioning, and simple naming rules so you can find data quickly. ...

Big Data Fundamentals: From Hadoop to the Cloud Big data means large volumes from apps, sensors, and logs. You need ways to store, process, and share insights. The field has shifted from Hadoop-style data stacks to cloud-based platforms that combine storage, analytics, and automation. This change makes data work faster and easier for teams of all sizes. Hadoop helped scale data. HDFS stored files, MapReduce processed jobs, and YARN managed resources. Tools like Hive and Pig simplified queries. Still, building and tuning a cluster demanded heavy ops work and could grow costly as data grew. The approach worked, but it could be slow and complex for everyday use. ...

Data Lakes vs Data Warehouses Pros and Cons Data lakes and data warehouses are two common ways to store data for analysis. They serve different needs. A data lake stores raw data in many formats right after it is produced. A data warehouse stores structured data that has been cleaned and organized for reporting. Pros of data lakes: Flexibility to hold raw and semi-structured data (texts, logs, images, sensor data). Lower storage costs and scalable capacity. Good support for data science and machine learning because you can access the original data. Cons of data lakes: ...

Big Data Fundamentals: Storage, Processing, and Insight Big data covers large and fast data from many sources like sensors, apps, and server logs. To turn that data into value, teams focus on three core areas: storage, processing, and insight. Each part matters, and they work best together. Storage options help you keep data safe and affordable. You can choose between data lakes, data warehouses, and simple object storage. Data lakes store raw data in its original form, which makes it flexible for many uses. Data warehouses organize clean, structured data for fast, repeatable queries. Object storage in the cloud provides scalable capacity and global access. When you plan storage, think about how you will search, govern, and secure the data. A data catalog that tracks sources, formats, and lineage is very helpful. ...

Big Data Architectures From Ingestion to Insight Big data architectures sit at the crossroads of speed, scale, and trust. A solid path from ingestion to insight helps teams turn raw events into usable decisions. This guide presents a practical view of common layers, typical choices, and how to balance trade-offs for reliable analytics. Ingestion and storage form the backbone. Data can arrive from apps, sensors, databases, or files, and it often arrives as a stream or in batches. Ingest pipelines separate arrival from processing, using real-time or batch modes. A data lake stores raw data for exploration, while a data warehouse holds structured, curated information for reporting. A lakehouse idea combines both with unified formats and strong transactions, reducing silos and speeding access. ...

Big Data Fundamentals: Storage, Processing, and Insights Big data projects revolve around three core ideas: storage, processing, and the insights you can gain. This guide explains these parts in plain language and offers practical steps you can apply today. Storage foundations Data storage choices vary by need. A data lake stores raw data in its native form, usually on object storage that scales and costs less. A data warehouse holds curated, structured data for fast, repeatable queries. The shift from schema-on-read to schema-on-write helps teams enforce consistency, but many teams still mix approaches. ...

Big Data Tools Architectures and Workflows Big data projects need a clear architecture and reliable workflows. A good design helps teams collect data from many sources, process it efficiently, and share insights fast. In practice, teams often balance storage, processing, and governance in layered approaches. Common architectures include Lambda, Kappa, and the newer idea of a data lakehouse. Lambda uses a batch path for completeness and a streaming path for freshness. Kappa focuses on stream processing for all data. Data lakehouse blends a data lake with a structured warehouse to speed queries and simplify tooling. ...

Data Science Pipelines From Data Ingestion to Insight A data science pipeline connects raw data to useful insight. It should be reliable, repeatable, and easy to explain. A well designed pipeline supports teams across data engineering, analytics, and science, helping them move from input to decision with confidence. Data typically starts with ingestion. You pull data from files, databases, sensors, or third parties. Some pipelines run on fixed schedules, while others stream data continuously. The key is to capture clear metadata: source, timestamp, and format. This makes later steps easier and safer. ...

Big Data Fundamentals: Storage, Processing, and Analytics Big data means very large, diverse data that old tools struggle to handle. To unlock value, teams work with three parts: storage, processing, and analytics. Storage Data lives in data lakes or data warehouses. A data lake stores raw data in many formats and scales in the cloud. A data warehouse keeps cleaned data for fast reports. Use columnar formats like Parquet to save space and speed queries. Governance and metadata are essential so you can find, trust, and reuse data. ...

Big Data Basics: Storage, Processing, and Insight Big data means datasets so large or complex that traditional methods struggle to store, manage, or analyze them. The basics stay the same: storage keeps data safe, processing turns it into usable information, and insight is the value you gain from it. When data scales to terabytes or beyond, teams mix storage choices with processing tools to answer business questions quickly. Storage options help match data needs with cost and speed. Data lakes hold raw data in a flexible format, which makes it easy to store many kinds of data. Data warehouses organize clean, structured data to run fast queries. NoSQL databases offer flexible schemas for evolving data, suitable for real-time apps. Common formats include Parquet and ORC, which compress data and improve speed. Start by listing the questions you want to answer, then pick storage that supports those questions without breaking the budget. ...