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For many years spreadsheets like Excel have been used to store data and records. These spreadsheet applications are approachable, ubiquitous, and flexible. They can merge cells, add comments, pivot on data, format tables, and make graphs. But with flexibility comes risk. They can lead to more work, more waiting, more versioning headaches, and lower accuracy. However with the availability of SQL, records can be stored much faster and easier. You can learn SQL through SQL tutorial on various educational websites. Here’s how SQL works – Your data is stored in a relational database, which is made of tables. Those tables usually look like one sheet in Excel, with rows and columns. You retrieve data and perform analysis with queries, which are a sets of instructions written in SQL. You can save them the same way you save a text file. Instead of describing how to get the data—like in Excel or Sheets—your queries describe what data you want. You can run these queries with a SQL inter

Software testing is an important step in a software development lifecycle. Any software or application needed to go through testing phase. Testing requires many skills and SQL is one of the essential parameters needed to become a successful software tester. SQL is an open-source programming language, so it has a vast network of developers. SQL is an easy and demanding to learn than other programming languages like C++, Java etc. Laso, a significant number of the predominant databases that utilize SQL (MySQL, MariaDB, and Postgres) are open-source. Therefore learning SQL tutorial becomes more essential. Learning SQL through SQL tutorial will make you better in database programming. You can extract data from tables and use them for testing purpose. Similarly, SQL is very helpful in financing fields where tons of records and information fetched every time. Not to forget that organizations are presently seeking out those people who are well-versed in SQL. It's one thing to ha

C++ is an enhanced version of the C language. C++ includes everything that’s part of C and adds support for object-oriented programming (OOP). In addition, C++ also contains many improvements and features that make it a “better C,” independent of object oriented programming. Learning C++ can become easy through C++ tutorial . It gives you basic idea about the language, its usage and how it can benefit your career ahead. Moreover, you will learn how to think, put logic and code effectively in C++. Some advantages of learning C++ are - It is useful for the low-level programming language and very efficient for general purpose. C++ provide performance and memory efficiency. It provides a high-level abstraction C++ used re-usability of code. C++ used inheritance, polymorphism.

Everyone has studied C, either in school or in college. It is the basic programing language taught in student life. C programing is one of the oldest but effective computer language used worldwide. It is clean, simple and easy to get. Coding in C requires the understanding of datatypes, data structure, pointers, loop and syntax available in C library. To write a simple program of hello world, you can use - #include <stdio.h> int main() { print f(“hello world”); return 0; } This simple code demonstrate how C programming is done. The execution of a C program starts from the main() function. The printf() is a library function to send formatted output to the screen. In this program, the printf() displays Hello, World! text on the screen. The return 0; statement is the "Exit status" of the program. In simple terms, program ends with this statement.

While learning SQL tutorial , you must have gone through Sql injection. Ever thought what is Sql injection and how it is useful in industries? SQL Injection is one of the many web attack mechanisms used by hackers to steal data from organizations. It is perhaps one of the most common application layer attack techniques used today. It is the hacking procedure that attempts to pass SQL commands via a web application for execution by back-end database. If not sanitized properly, web applications may result in SQL Injection attacks that allow hackers to view information from the database and/or even delete/alter it. When an attacker knows that a system is open to SQL Injection, he is able to inject SQL Query / Commands through an input form field. This is equivalent to handing the attacker your database and allowing him to execute any SQL command including DROP TABLE to the database. Firewalls and similar threat detection mechanisms provide little defense against such web attacks.

Python is a general-purpose interpreted, interactive, object-oriented, and high-level programming language. It is free and open-source that mean the original source code is made freely available and may be redistributed and modified. It is very simple and easy to learn compared with other programming language i.e. C, C++, JAVA etc. However, python is very powerful programming language because of having huge set of predefined library functions.  You can learn Python tutorials at Fresh2Refresh. This tutorial is designed for software programmers who need to learn Python programming language from scratch. Here are few key benefits of learning Python -  Presence of Third Party Modules Extensive Support Libraries Open Source and Community Development Learning Ease and Support Available User-friendly Data Structures Productivity and Speed To get the details on Python Tutorials, visit https://fresh2refresh.com/python-tutorial/