Hash Function is a function which has a huge role in making a System Secure as it converts normal data given to it as an irregular value of fixed length. We can
Hash Table supports following operations in Θ(1) time. 1) Search 2) Insert 3) Delete The time complexity of above operations in a self-balancing Binary Search
This article focus on : Compare and contrast Hash table and an STL Map. How is the hash table implemented? If the number of inputs is small, which data structur
Print the elements of an array in the decreasing frequency if 2 numbers have same frequency then print the one which came first. Examples: Input : arr[] = {2, 5
Prerequisite – Hashing Introduction, Implementing our Own Hash Table with Separate Chaining in Java In Open Addressing, all elements are stored in the hash ta
We have introduced and discussed importance of hashed passwords. To create strong hashed passwords, we must understand some terminology related to it and then w
The Location Hash property in HTML is used to return the anchor part of a URL. It can also be used to set the anchor part of URL. It returns the string which re
Background A Database Management System (DBMS) stores data in the form of tables, uses ER model and the goal is ACID properties. For example a DBMS of college h
A data-warehouse is a heterogeneous collection of different data sources organised under a unified schema. There are 2 approaches for constructing data-warehous
Prerequisite – Data Warehousing Data warehouse can be controlled when the user has a shared way of explaining the trends that are introduced as specific subje
Prerequisite – DBMS | File Organization – Set 1, File Organization-Set 2 B+ Tree File Organization – B+ Tree, as the name suggests, It uses a tree like st
In general terms, “Mining” is the process of extraction of some valuable material from the earth e.g. coal mining, diamond mining etc. In the context of com
Prerequisites – Data Warehousing, Data Warehouse Architecture, Characteristics and Functions of Data warehouse Here are some of the difficulties of Implementi
Data Mining – Knowledge Discovery in Databases(KDD). Why we need Data Mining? Volume of information is increasing everyday that we can handle from business tr
Datawarehouse and Data Mart, both are storage components of HDFS. Data mart is such a storage component which is concerned on a specific department of an organi
In this post, we will discuss what are different sources of data that are used in data mining process. The data from multiple sources are integrated into a comm
Prerequisite – Introduction to Hadoop, Apache Hive The major components of Hive and its interaction with the Hadoop is demonstrated in the figure below and al
With the phenomenal growth in digital data, particularly generated from multi-media and other enterprise application the need for high-performance storage solut
The ODBMS which is an abbreviation for object oriented database management system, is the data model in which data is stored in form of objects, which are insta
Prerequisites – Introduction to Hadoop, Computing Platforms and Technologies Apache Hive is a data warehouse and an ETL tool which provides an SQL-like interf
Prerequisites – Introduction to Hadoop, Apache HBase HBase architecture has 3 main components: HMaster, Region Server, Zookeeper. Figure – Architecture of H
Prerequisite – Introduction to Hadoop HBase is a data model that is similar to Google’s big table. It is an open source, distributed database developed by A
Hive: Hive is a datawarehousing package built on the top of Hadoop. It is mainly used for data analysis. It generally target towards users already comfortable w
A system in which each server is autonomous and centralized DBMS that has its own local users. The term Federated Database system or in short FDS is basically u
Relational Database Management System (RDBMS) – RDBMS is for SQL, and for all modern database systems like MS SQL Server, IBM DB2, Oracle, MySQL, and Microsof
