St Louis
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8 min readMicroweber is a user-friendly and intuitive website builder and content management system (CMS) that allows you to create and manage websites without any technical knowledge. It supports various deployment options, giving you flexibility to choose a hosting solution that best fits your needs.You can deploy Microweber on various platforms, including:Shared Hosting: Microweber can be installed on shared hosting environments offered by popular hosting providers.
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6 min readThe "do" notation in Haskell is a syntactic sugar that allows you to write imperative-style code in a more concise and readable way. It is primarily used when working with monads, which are a way of structuring computations that involve side effects.To use the "do" notation, you first need to understand the concept of monads in Haskell.
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5 min readTo use the pg_cron extension for scheduled tasks in PostgreSQL, you need to follow these steps:Install the pg_cron extension: Download the extension from the PostgreSQL website or use a package manager to install it. On Linux, you can run make && sudo make install within the extension's source code directory. Enable the extension: In your PostgreSQL database, connect as a superuser or use a user with the CREATETEXT privilege.
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6 min readIn Haskell, error handling is usually accomplished by using the Maybe and Either types, as well as by utilizing the Maybe and either functions. These constructs allow for expressing and handling different types of errors in a concise and type-safe manner.The Maybe type is widely used to represent computations that may fail. It is defined as data Maybe a = Nothing | Just a, where Nothing denotes failure and Just a represents a successful result.
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9 min readSymfony is a popular open-source PHP framework known for its flexibility, scalability, and robustness in developing web applications. When it comes to hosting Symfony, there are several options available. Various web hosting providers support Symfony, allowing developers to deploy their Symfony-based projects easily.One option is shared hosting, where multiple websites share server resources.
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9 min readSetting up and managing PostgreSQL on Kubernetes involves several steps to ensure the smooth functioning of the database within the Kubernetes cluster. Here is an overview of the process:Install Kubernetes: Begin by setting up a Kubernetes cluster. This involves installing and configuring Kubernetes on your platform of choice, such as a cloud provider or on-premises infrastructure. Deploy a Persistent Volume: PostgreSQL requires persistent storage to store its data.
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11 min readMonads are a fundamental concept in Haskell, allowing you to work with computations that perform side effects or encapsulate values in a specific context. Here are the key points to understand how to work with monads in Haskell:Monads as Typeclasses: Monads are represented as a typeclass called Monad in Haskell. This typeclass provides two main functions: return and (>>=), pronounced as "bind".
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6 min readTo implement custom aggregate functions in PostgreSQL, you can follow these steps:Define the aggregate function: Start by creating a new function using the CREATE FUNCTION statement. Specify the function name, input parameters, return type, and any other required details. Use the AGGREGATE keyword to indicate that it is an aggregate function. Define the state variables: A custom aggregate function often requires state variables to track the intermediate results during aggregation.
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6 min readHigher-order functions are an essential feature of the functional programming language Haskell. A higher-order function is a function that can take other functions as arguments or return functions as results. This allows for flexibility and abstraction in coding.To use higher-order functions in Haskell, you can follow these steps:Define a higher-order function: Start by defining a function that takes one or more functions as arguments or returns a function.
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8 min readTo install Zabbix server on a VPS (Virtual Private Server), follow these steps:Connect to your VPS: Use SSH (Secure Shell) or any other remote access method to connect to your VPS using a terminal. Update the system: Before installing any software, update your VPS to ensure it has the latest packages. Run the following command: sudo apt update && sudo apt upgrade Install necessary dependencies: Zabbix server requires some dependencies to be installed.
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11 min readConnection pooling is a technique used to manage a pool of established database connections. It helps in improving the performance and scalability of applications that require frequent database access, such as web applications.To implement connection pooling for PostgreSQL, you can follow these general steps:Choose a connection pooling library: Various libraries are available that provide connection pooling functionality for PostgreSQL.