WebJun 30, 2024 · 5. Name and Explain Some Common Aggregate Functions. In SQL, an aggregate function uses the data from multiple rows to calculate a single result. Common … WebMar 30, 2024 · 2. Write a query to find the name and salary of the employee with the highest salary in each department. If you enjoy reading my blogs, consider subscribing to my feeds. Also, if you are not a ...
Top 25 SQL Interview Questions and Answers(The BEST SQL ... - YouTube
WebSELECT UPPER(EmpFname) AS EmpName FROM EmployeeInfo; Q2. Write a query to fetch the number of employees working in the department ‘HR’. 1. SELECT COUNT(*) FROM EmployeeInfo WHERE Department = 'HR'; Q3. Write a query to get the current date. You … Wide column stores-Wide column stores such as Cassandra and HBase are … PMP ® Certification is known as the golden standard in the field of project … In this Power BI interview questions and answers blog, I have collected the most … Spring Interview Questions. So, here are the Top 50 Spring Interview Questions which … It supports data structures such as strings, hashes, lists, sets, sorted sets with range … Let us start by taking a look at some of the most frequently asked Java interview … React Components – React Interview Questions 11. “In React, everything is a … Introduced in 2013, Docker hit the IT industry. It turned out to be a big hit with … WebIn this video we will see advanced #Top 9 #SQL query Which are very important for the #PlacementPreparation Link for SQL file-https: ... even in the manger
20 SQL Coding Interview Questions - Analytics Vidhya
WebMar 19, 2024 · SQL means structured query language that is used to communicate with the database, retrieve information and manipulate data stored in the database. It is the most in demand skill that will help you throughout your career, irrespective of the changes in technology that take place every day. So if you have the passion to work … Continue … WebFeb 3, 2024 · Being able to tie your experiences to your answers during the interview process is an important skill. To do this, the STAR method of answering interview … WebJun 28, 2024 · Q8. Write a query to find the hiked salary for each employee after adding the commission. Answer: SELECT EMPNO, ENAME, NVL2 (COMM, SAL+COMM, SAL) AS HIKEDSAL FROM EMP; Since the commission column contains null values so directly adding it to salary will return null wherever the commission is null. even in the pandemic