What are Joins in SQL?
SQL join and Unions are the most common techniques in combining data data from two or more tables.
What is Apache NiFi? An Introduction
Apache NiFi is an open source tool for automating and managing the flow of data between systems (Databases, Sensors, Hadoop, Data Platform and other sources).
What is the Best Way to Secure a Big Data cluster?
Big data refers to datasets whose size, volume and structure is beyond the ability of traditional software tools and database systems to store,process and analyze within reasonable timeframes. Big data security is a term used for the different tools and techniques used to protect data,any back end processes from outside attacks and thefts.
What is Data Mining?
Data mining is defined as process that helps in discovering patterns in data sets by using various methods from machine learning, statistics and database systems.
What is Metadata For Big Data Applications and Why it is important?
Metadata is the information that describes other data or in other words it is data about the data.It is the descriptive,administrative and structural data that defines a firms data assets.
What is Enterprise Data Warehouse(EDW)?
An Enterprise data warehouse usually contains historical data that is derived from transaction data, but it can include data from other sources. It separates analysis workload from transaction workload and enables a business to consolidate data from several sources.
How do we Choose File Format in Big Data Framework?
It is important to calculate the storage requirement along with the file formats when designing a data lake, data platform, or big data-based solution. The performance of applications and processes…
Finding Right hardware for Hadoop Cluster
Many things needs to be considered before finding the right hardware for Hadoop clusters. Hadoop workloads tend to vary a lot betweek different jobs. It takes experience to correctly anticipate the amounts of storage, processing power, and inter-node communication that will be required for different kinds of jobs.
What is an ACID property in the Database?
In a relational database, multiple transactions are used in SQL (Structured Query Language) which can be one or multiple statements. A transaction is a single logical unit in which database…
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