Big data is an evolving term that describes any vast amount of data which can be any of form such as structured,semistructured and unstructured data.
Structured -the data which is properly organized.It concerns all the data that can be stored in database SQL in table with rows and columns.
Semi Structured– the data that doesn’t reside in a relational database but that does have some organizational properties that make it easier to analyze.
Unstructured-It often include text and multimedia content.
Big data comes in usage when the normal application of current technology does not enable users to obtain timely, cost-effective, and quality answers to data-driven questions.
Although big data doesn’t equate to any specific volume of data, the term is often used to describe terabytes, petabytes and evenexabytes of data captured over time
Big data is often characterized by 3Vs:
- the extreme volumeof data,
- the wide varietyof data types and the ,
- velocityat which the data must be processed. Although big data doesn’t equate to any specific volume of data, the term is often used to describe terabytes, petabytes and even exabytes of data captured over time.