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Introduction of JavaScript ?

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JavaScript is a high-level scripting language used for implementing complex features on web pages. It allows developers to create dynamically updating content, control multimedia, animate images, and perform a wide range of other tasks. JavaScript runs in web browsers and is essential for many interactive web applications. Node.js is a cross-platform, open-source back-end JavaScript runtime environment. It enables developers to execute JavaScript code outside of a web browser, which makes it useful for writing command-line tools and server-side scripting. Node.js promotes a "JavaScript everywhere" paradigm, making it possible to use the same programming language for both client-side and server-side scripting. To write and run JavaScript code, you can use an online coding platform such as Replit. In JavaScript, variables are used to store and manipulate data. They can be declared using the var keyword, followed by the variable name and an optional initial value. Multiple varia...
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Introduction of JavaScript ?

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JavaScript is a high-level scripting language used for implementing complex features on web pages. It allows developers to create dynamically updating content, control multimedia, animate images, and perform a wide range of other tasks. JavaScript runs in web browsers and is essential for many interactive web applications. Node.js is a cross-platform, open-source back-end JavaScript runtime environment. It enables developers to execute JavaScript code outside of a web browser, which makes it useful for writing command-line tools and server-side scripting. Node.js promotes a "JavaScript everywhere" paradigm, making it possible to use the same programming language for both client-side and server-side scripting. To write and run JavaScript code, you can use an online coding platform such as Replit. In JavaScript, variables are used to store and manipulate data. They can be declared using the var keyword, followed by the variable name and an optional initial value. Multiple varia...
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What is SQL Constraints,What is Primary key, What is Foreign key, What is SQL functions ?

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  SQL Constraints, Primary key, Foreign key, SQL functions SQL Constraints SQL constraints are used to specify rules for the data in a table. Constraints are used to limit the type of data that can go into a table. This ensures the accuracy and reliability of the data in the table. It Prevents invalid data entry into the table. Constraints not null unique primary key foreign key check Note: check constraint will not be supported by MySQL. Note: some constraints we can apply at the column level and some constraints we can apply at the table level. Column Level: where we define the column not null unique primary key Table Level: after defining all the columns foreign key composite key (multi-column primary key) not null a null value is not allowed, that column will be mandatory. unique to that column duplicate values are not allowed. here we can insert null values multiple times. Note: whenever we define a unique constraint on a column then aut...
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All Basic Function and Key Word Related to the SQL(Structured Query Language) on this Blogs

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All Basic Function and Key Word Related to the SQL(Structured Query Language) on this Blogs   Enter password: **** Welcome to the MySQL monitor.  Commands end with ; or \g. Your MySQL connection id is 8 Server version: 8.0.32 MySQL Community Server - GPL Copyright (c) 2000, 2023, Oracle and/or its affiliates. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> SHOW DATEBASES; ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DATEBASES' at line 1 mysql> SHOW DATABASES; +--------------------+ | Database           | +--------------------+ | borrow             | | deposit            | | information_schema | | my...
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👉 How to Become a Full Stack Web Devloper in 2023.

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👉 Are you interested in becoming a web developer? If you enjoy solving problems and have a passion for technology, then web development may be the perfect career for you. In this blog, we'll discuss the steps you need to take to become a web developer. 👉 Choose a programming language The first step to becoming a web developer is to choose a programming language. There are many programming languages to choose from, including JavaScript, Python, Ruby, and PHP. It's essential to choose a language that is in high demand and aligns with your interests and career goals. 👉 Learn HTML, CSS, and JavaScript HTML, CSS, and JavaScript are the three essential building blocks of web development. HTML is used to create the structure of web pages, CSS is used to style them, and JavaScript is used to add interactivity and functionality. It's essential to have a strong foundation in these languages before moving on to more advanced topics. 👉 Learn a framework or library Frameworks and li...
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Introduction, SQL basics: DDL, DML, DRL || What is SQL ? || What is DDL ? What is DML? What is DRL?

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   Introduction, SQL basics: DDL, DML, DRL Java It is mainly used to develop a business application. Business Application Business organizations : the main objective for any business organization is profit. 1.  Small-scale business organizations (grocery shops, petrol pumps, they are running their services in a limited area.) 2.  Larger scale business organizations(Banks, railways, eCommerce, travel, insurance): these types of Business organizations are also called enterprises. These Business Organizations provide their services to the  client/customers,  and to  computerize those services  whatever application we develop is known as a  Business application. Common and general things in any business application: Storing and maintaining business data in a secure and easily retrievable manner. Processing the business data according to the business rules. Presenting the data to the user, in a user-understandable format. Note:  in real-time ...
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All Basic Function and Key Word Related to the SQL(Structured Query Language) on this Blogs

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All Basic Function and Key Word Related to the SQL(Structured Query Language) on this Blogs   Enter password: **** Welcome to the MySQL monitor.  Commands end with ; or \g. Your MySQL connection id is 8 Server version: 8.0.32 MySQL Community Server - GPL Copyright (c) 2000, 2023, Oracle and/or its affiliates. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> SHOW DATEBASES; ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'DATEBASES' at line 1 mysql> SHOW DATABASES; +--------------------+ | Database           | +--------------------+ | borrow             | | deposit            | | information_schema | | my...
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