Query optimization is the overall process of choosing the most efficient means of executing a SQL statement. SQL is a nonprocedural language, so the optimizer is free to merge, reorganize, and process in any order. Introduction Query enhancement Advantages Fundamental Considerations for Logic Design Query optimisation techniques and Common...

R is a programming language and free software environment for statistical computing and graphics. Introduction of R programming Why R Programming Language? Features of R Programming Language Statistical Features of R Programming Features of R ...

Data mining is the process of analyzing enormous amounts of information and datasets, extracting (or “mining”) useful intelligence to help organizations solve problems, predict trends, mitigate risks, and find new opportunities. Data mining is like actual mining because, in both cases, the miners are sifting through mountains of material to...

Source code management (SCM) is used to track modifications to a source code repository. SCM tracks a running history of changes to a code base and helps resolve conflicts when merging updates from multiple contributors. SCM is also synonymous with Version control. Introduction of SCM Tools & Frameworks SCM Features Types of Source Code...

AWS provides services that help you practice DevOps at your company and that are built first for use with AWS. These tools automate manual tasks, help teams manage complex environments at scale, and keep engineers in control of the high velocity that is enabled by DevOps. Explore our solutions and tooling for DevOps. Introduction to DevOps Why...

It talked about the four stages of development all teams move through over time: forming, storming, norming, and performing. In 1977, Tuckman and doctoral student Mary Ann Jensen added a fifth stage called adjourning to make it the “five stages of team development.” Introduction to team development What are the 5 Stages of Team...

A control statement in java is a statement that determines whether the other statements will be executed or not. It controls the flow of a program. An 'if' statement in java determines the sequence of execution between a set of two statements. Introduction to java Java Control Statements | Control Flow in Java Primary/Main Features of...

Scikit-learn is the most popular Python machine learning library for creating machine learning algorithms. It was created on top of two Python libraries – NumPy and SciPy. Scikit-learn is a Python library that provides a standard interface for supervised and unsupervised learning techniques. Introduction to Python Libraries Python libraries...

RabbitMQ is a general purpose message broker that supports protocols including MQTT, AMQP, and STOMP. Kafka is a durable message broker that enables applications to process, persist, and re-process streamed data. Kafka has a straightforward routing approach that uses a routing key to send messages to a topic. Introduction to Kafka vs...

The default port for mongod and mongos instances. You can change this port with port or --port. The port 27017 is used for mongoDB server, an important module for EAP Controller. If the port 27017 is already occupied by some other applications or processes, the monogoDB cannot be initialed, and thus it will lead to the failure of the EAP...