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MySQL Views: Create, Alter, Drop, and Use Cases

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Introduction MySQL is a very popular database widely used for managing data. It is an open-source platform introduced by MySQL AB and currently managed by Oracle Corporation. This platform is known for its performance, ease of use, and represents data in a structured format, which is easily readable by providing data in a tabular format represented with rows and columns. MySQL views are one of the most powerful tools available to database administrators and developers. A view in MySQL acts like a virtual table that is derived from one or more tables. It simplifies queries and enhances security. In this article, we will discuss views in MySQL in detail – covering what they are, how to create , alter , and drop them, along with working examples showing cases where views are highly used. Key Characteristics and uses of SQL views Given below is the list of main characteristics and use cases of SQL views. 1.       Simplification of Queries: MySQL views simplify com...
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ReactJS useState Hook Explained with Examples

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Introduction: In modern times, React is the most used JavaScript front-end library for making a single-page application. Hooks are mainly used in the functional components that manage the state. By using Hooks, you can use the React Lifecycle methods in functional components. Before React hooks, developers used class components for managing the state. In this article, we will explore the ReactuseState hook with practical examples and how to manage the state. useState in React: This hook helps to add the state in functional components. A state is used to contain the data or properties that are used to track your application. It is a similar way to useReducer hook that is used to update the basic state variable. Syntax: const [data, setData] = useState(curr_State) Explanation: State: It represents the current state. setState: It’s used for updating the state. currentState: It represents the current value of the state. Example Code: import React, { useState } fro...
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