In my previous articles I have explained theSQL interview questions ,BI Interview questionswhich will give the best idea about the question that may ask in interview. In this article i will try to explain most important PL/SQL Interview Questions that may ask in interview.PL/SQL is the Proced...
Write a query to fetch values in table test_a that are and not in test_b without using the NOT keyword. Note, Oracle does not support the above INSERT syntax, so you would need this instead: insert into test_a(id) values (10); insert into test_a(id) values (20); insert into te...
Most Commonly Asked SQL Interview Questions and Answers for 2025 Skip Introduction SQL stands for Structured Query Language. It is used to maintain communication with a database. SQL is also considered a standard language for relational database management systems. A lot of relatable database managem...
(Mostly asked in Interview Questions For SQL) Answer: Following are types of subqueries: 1.Single Row Subquery 2.Multirow Subquery 3.Correlated Subquery 4.Nested SubQueries 5.Scalar Subqueries Click here to get information about Subqueries.. 13.What is Correlated Subquery or synchronized Query?
16. What are the new features introduced in SQL Server 2000 (or the latest release of SQL Server at the time of your interview)? What changed between the previous version of SQL Server and the current version? This question is generally asked to see how current is your knowledge. Generally...
Frequently Asked SQL Interview Questions 1. What is a Database? Adatabase refers to a structured data collection that can be stored, managed, and retrieved from a remote or local computer system. Databases can become pretty complex and are built with a fixed design and modeling approach. ...
7. What kind of information that SQL Server keeps in memory? 8. Customer asked to break the mirroring and failover to mirror database. What are the steps to be taken other than a manual failover? 9. Can you give some examples for One to One, One to Many and Many to Many relationsh...
Intermediate SQL interview questions with detailed answers: 11. Find Customer Order Counts Question: Write a query to list customers who have placed more than 5 orders. Use the customers and orders tables. Answer: SELECT c.customer_id, c.customer_name, COUNT(o.order_id) AS order_count ...
This repo is a collection of all the Interview Query's SQL interview question. - GitHub - nehanawar025/interview_query_SQL: This repo is a collection of all the Interview Query's SQL interview question.
In this article Context Reasoning Illustration Summary See Also Context There was an interesting question once asked during an interview for SQL skills which looks like the below: "Which is the simplest type of join and which is the most generic type of join statement?" ...