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DBMS basic terminology and concepts

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Basic Concepts:
Data is organized in a data storage hierarchy of increasingly complex levels: bits, bytes (characters), fields, records, files, and databases. A character is a letter, number, or special character. A field consists of one or more characters (bytes). A record is a collection of related fields. A file is a collection of related records. A database is, as mentioned, an organized collection of integrated files. Important to data organization is the key field, a field used to uniquely identify a record so that it can be easily retrieved and processed.

Introduction to database Every one deals with data every day. When anyone wants to listen to his/her favorite songs, he opens his playlist from the smartphone. In this case, the playlist is a database.
When you take a photo and upload it to your account in a social network like Facebook, your photo gallery is a database.
Databases are everywhere. So what is a database?  By definition, a database is simply a structured collection of…

Difference between Data Mining and Knowledge Discovery (KDD)

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Data Mining and KDD are the important terms that related to context of huge data. Before learning the basic difference between them. Let's have a look on DIKW pyramid.
DIKW: It stands for the Data / Information / Knowledge / Wisdom pyramid. Sometimes it is also referenced as “DIKW Hierarchy”, “Wisdom Hierarchy”, “Knowledge Hierarchy”, “Information Hierarchy” or “Knowledge Pyramid”.
Data is a given fact or a set of qualitative or quantitative variables of a certain issue. These bits of pieces values are still raw, and is insignificant unless they are collected and arranges in a certain manner which will now give you an information.  Information then is a collection of data, which can be used to answer a certain question or describe a concept. Well knowledge and wisdom, are bit different from data and information, since knowledge is the awareness or the conscious understanding of information or a concept. Thus, knowledge is more on the intellectual or cognitive ability of a being to pos…

ASSISTANT PROFESSOR RECRUITMENT AND QUALIFICATIONS | ASSESSMENT CRITERIA AND METHODOLOGY FOR UNIVERSITY/COLLEGE TEACHERS

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The NET (National Eligibility Test), or an accredited test (State Level Eligibility Test  SET/SLET) shall be remained the minimum eligibility for appointment of Assistant Professor in higher education. It is stated further, if those candidates are awarded PhD with the regulations of UGC are exempted from the NET/ SET. A minimum of 55 % marks shall be required at the master level. A relaxation of 5% shall be provided at the graduate and master‘s leve. Candidates belonging to Scheduled Caste/Scheduled Tribe/Differently-abled, Other Backward Classes (OBC) ASSESSMENT CRITERIA AND METHODOLOGY FOR UNIVERSITY/COLLEGE TEACHERSCriteria for Short listing of candidates for Interview for the Post of Assistant Professorsin Universities # However, if the period of teaching/Post-doctoral experience is less than one year then the marks shall be reduced proportionately. Note: (A) (i)M.Phil + Ph.D Maximum– 30 Marks (ii) JRF/NET/SET Maximum - 07 Marks (B) Number of candidates to be called for interview shall be…