PL SQL Interview Questions for 6 to 7 Years for Experience 54. What are Pseudocolumns and how do they work? How can Pseudocolumns be used in Procedure Statements? Pseudocolumns aren’t genuine table columns but they behave like them. Pseudocolumns are used to retrieve specific information in ...
Intermediate SQL Joins Interview Questions Advanced SQL Joins Interview Questions for Experienced SQL JOINS are used to join two sets of data. It is a type of programming language used to manipulate information and can be used to create, or retrieve information. This article is going to give you...
Ans. C++ is a widely used object-oriented language and has a variety of IDEs but for a beginner to choose a perfect IDE, it is advisable to start with Code::Blocks since it is a lightweight and easy-to-use IDE with all the features available that are suitable for medium-sized projects...
The following are the most popular and useful SQL interview questions and answers for fresher and experienced candidates. These questions are created specifically to familiarise you with the types of questions you might encounter during your SQL interview. According to our experiences, good interviewers ...
We can easily retrieve the first five rows of any table by using the Rownum keyword. We have to use the 'Less than equals to' comparison operator for this operation. Here, N defines the number of rows to be shown in the output. ...
An SQL interview question like this one shows that even though some of the advanced concepts may be easy to understand, they may be difficult to recount when suddenly faced with the question. Thus, when you prepare for SQL interview questions, ensure to revise all types of concepts. ...
This post will undoubtedly give you some insights if you’re looking for questions and answers to use while you prepare for a SQL interview. In a job interview for a data engineer, data analyst,database administrator, etc., the following questions should be expected. ...
is intended to help you through a variety of SQL questions based on topics such as MS SQL Server, MySQL, and others. This is a one-stop resource for maximizing your benefit and preparing for job interviews. Consider the following top SQL Query interview questions that employers are now ...
Note :- It's difficult to cover complete aspect of RAID in this book. It's better to take some decent SQL SERVER book for in detail knowledge, but yes from interview aspect you can probably escape with this answer.SQL Server Difference between @@IDENTITY, SCOPE_IDENTITY () and IDENT_...
Tricky SQL Queries Interview Questions We’ll provide you with a set of tricky SQL queries along with some demo tables. Please note that the complexity of these queries may vary, and they are designed to test various aspects of SQL knowledge. Before running these queries, make sure to create...