PHP-MySQL InterviewQuestionLast few days I havebeen working to compile a question and answer set for PHP-MySQLinterview questions. There are roughly 150 questions and i will be adding more as days to come.These
Coming to the next set of interview questions for web developers, here is a common question for JavaScript. 50. What are undefined and undeclared variables in JavaScript? Variables that have been declared already but not initialized are known as undefined variables. On the other hand, if a vari...
Top 34 MySQL Interview Questions and Answers For 2025 Programming Interview Question FAQs Why is practicing for programming interviews important? Whether you're looking for a new opportunity in software development or data analysis or a hiring manager who will interrogate a candidate for a job openi...
Gk Questions with Answers Welcome to a2zinterviews.com Aptitude Problems on Train Partnership Time & Distance More ... Database SQL Server MYSQL ORACLE More ... General Knowledge Branches of Science Computer Quiz Famous Personalities More ... ...
To learn more about API design, check out this mock interview from Exponent, on designing the Twitter API: 8. How would you design a messaging app? Real-time messaging apps are a common standalone product, or a built-in feature of larger systems. For this question, you might be asked ...
It’s a great design question and asked a lot in java interviews. This post provides all the differences between abstract class and interface. When should we use interface over the abstract class and vice versa? The post also explains how to use abstract class and interface to create a flexi...
Question: FInd the sales of Product A and B in 2022 and 2023 Output Data: Product sales_2022 sales_2023 A 100 200 B 150 250 Query Used: SELECT product, [2022] AS sales_2022, [2023] AS sales_2023 FROM ( SELECT product, year, sales FROM sales ) AS SourceTable PIVOT ( SUM(sales)...
That is not what we want – we want to see the most recent date that someone logged on in the last 30 days – this will return a maximum of 1 entry per user. Now, the question is how do we get the most recent date? This is quite simple again, as MySQL provides a MAX ...
MongoDB Interview Question and AnswersHey! Are you preparing to attend any of the interviews in the profile of MongoDB? Wow! Then you are at the right place. This article consists of the MongoDB interview questions. These questions are specifically designed for both freshers and experienced to...
a)When no mock is set up, any interaction on spy results in calling the real methods. But it still allows you to verify the interactions with the spied object – was a method called, how many times the method was called, what were the arguments using which the method was called, etc....