Posted: 2022-02-22 09:34:19 Source: https://linuxhint.com/postgresql-grouping-sets/
This article provides a step-by-step guide using the PostgreSQL Grouping Sets. This helpful tutorial highlights the concept of Grouping sets in SQL and the advantage of using the “GROUP BY” command over the “UNION ALL” command. In addition, we discussed the implementation of the grouping sets in the PostgreSQL environment.
Posted: 2022-02-22 09:32:40 Source: https://linuxhint.com/set-intersection-cpp/
The set class in the C++ set library does not have a member function for intersection. To obtain intersection of sets, the algorithm library has to be included into the program. C++ algorithm library has a number of set_intersection overloaded functions. This article will explain the set_intersection function in C++.
Posted: 2022-02-22 09:30:19 Source: https://linuxhint.com/set-vs-map-cpp/
A set in C++ is a group of not necessarily unrelated values, but of the same type. The values of a set in C++ are called keys. A map is a set of key/value pairs in C++. This article will discuss similarities and differences between a set and a map.
Posted: 2022-02-22 09:26:53 Source: https://linuxhint.com/insert-data-cpp-set/
A set in C++ can be created empty. If it’s created empty, then the insert() member function can be used to insert initial elements of the set. Initializer_list has to be used as sole argument to insert function. This article will discuss how to insert data into a C++ set.
Posted: 2022-02-22 09:12:47 Source: https://linuxhint.com/change-set-to-vector-cpp/
When a set is converted to a vector, a new arrangement is maintained until it is changed. To code a set and a vector in C++, the set library and vector library has to be included. This article will discuss how to change a set to a vector in C++.
Posted: 2022-02-22 08:54:01 Source: https://linuxhint.com/create-std-set-cpp/
A set in C++ is very similar to a set in Mathematics. In C++, a set does not allow duplicate values. However, a multiset in C++ allows duplicate values. STD means Standard. In this article, we will discuss the common ways on how to create a STD set in C++.
Posted: 2022-02-22 08:35:07 Source: https://linuxhint.com/c-string-length/
This article provides an easy step-by-step guide on how to use the C++ String Length. This helpful tutorial highlights the several approaches that are used to get the length of different C++ strings. Note that the C++ strings are arrangements of letters or characters saved in the adjacent memory address.
Posted: 2022-02-22 08:28:23 Source: https://distrowatch.com/11478
Tomáš Matějíček has released a new version of Slax, a distribution that started back in 2003 as a minimalist live CD based on Slackware Linux, but evolved into a minimalist live CD based on Debian. The new version continues to use the Fluxbox window manager and is available....
Posted: 2022-02-22 08:09:39 Source: https://linuxhint.com/create-iam-roles-aws/
We have to give permission for one AWS service to manage or access other AWS services on your behalf. These permissions are granted by attaching IAM policies to IAM Roles. This article will discuss how to create IAM roles on AWS using AWS management console and AWS command line interface.
Posted: 2022-02-22 08:06:56 Source: https://linuxhint.com/create-iam-policies-aws/
IAM policies are one of the most important parts of AWS cloud structure. These are used to govern permissions to all users in the account. They define whether a member can access a certain resource and service or not. This article will show how to create IAM policies on AWS.
Posted: 2022-02-22 08:04:55 Source: https://linuxhint.com/create-call-method-java/
To create a method we have to specify access modifier, and return type followed by the method name, all the functionalities will be defined within the method. In order to call a method, we have to specify a method name followed by parentheses (). This write-up demonstrated how to create and call a method in Java with the help of a simple and to-the-point example.
Posted: 2022-02-22 08:02:37 Source: https://linuxhint.com/configure-replication-rules-aws-s3/
S3 replication is the facility provided by Amazon to replicate the data from one S3 bucket to another S3 bucket within or across the region. AWS provides different features for AWS S3 replication. This article will discuss how to configure S3 replication across different S3 buckets within or across regions.
Posted: 2022-02-22 07:57:30 Source: https://linuxhint.com/golang-select-call/
This article provides an easy step-by-step guide on how to utilize the Golang select call in the Go programming language. This helpful tutorial highlights using the Go select call to selectively fetch data from several channels and the select call randomly selecting the data if all the providers are ready.
Posted: 2022-02-22 07:54:21 Source: https://linuxhint.com/check-file-exists-cpp/
In C++, file handling is a method to store the outcome of a code in the file and assists to execute different operations on it. In this article, we’ll discuss different methods of checking if files exist in the memory with the help of a very simple method in C++.
Posted: 2022-02-22 07:54:00 Source: https://linuxhint.com/delete-array-cpp/
An array is a group of components having identical data types located inline memory locations. Deletion of an array is the removal of a complete array from a program without affecting the code, sequence, and logic of program. This article will discuss different approaches to deleting the array in C++.
Posted: 2022-02-22 07:53:45 Source: https://linuxhint.com/cpp-factorial/
The factorial of any number is the product of all positive descendant integers. The factorial is usually used in the mixtures and variations. The factorial can be determined using for loops. In this article, we will discuss the numerous methods to find out the factorial of different integers in C++.
Posted: 2022-02-22 07:53:31 Source: https://linuxhint.com/golang-type-alias/
Type aliasing refers to the technique of providing an alternate name for an existing type. This helps to facilitate code refactor for large codebases. Type aliasing was introduced in Go version 1.9 and above. In this article, we will discuss and learn about type alias in the Go programming language.
Posted: 2022-02-22 07:53:09 Source: https://linuxhint.com/golang-rest-api/
This article provides a step-by-step guide on how to use Golang REST API in the Go programming language. This tutorial highlights how to set up a simple REST API using Go programs to serve as a foundation for building faster and more complex APIs while discussing the HTTP Request function.
Posted: 2022-02-22 07:53:07 Source: https://linuxhint.com/golang-waitgroup/
Waitgroups allows you to pause execution until a group of functions or goroutines finish execution. An example would be to block the main function until goroutines are completed and then unblocks the group. This article will discuss the basics of working with Waitgroup subpackage from the sync package in Go.
Posted: 2022-02-22 07:52:48 Source: https://linuxhint.com/golang-websocket/
This is a beginner's guide to working with WebSocket in Go programming. This will help introduce you to the world of WebSocket and the gorilla WebSocket package. This article will discuss how to upgrade a HTTP connection to a WebSocket protocol, read messages and responds messages back to the client.