In the Microsoft SQL SERVER context, hotfixes are small patches designed to address specific issues, most commonly to freshly-discovered security holes. For example, if a select query returns duplicate rows with aggregations, the result may be wrong. This can be fixed by a hotfix. Interview Que...
Each question comes with a perfectly written answer inline, saving your interview preparation time. It also covers practice problems to help you understand the basic concepts of SQL. We've divided this article into the following sections: SQL Interview Questions PostgreSQL Interview Questions In the ...
SQL Interview Question 面试的时候发现会问一些SQL的基本问题,在此总结一下。 ProgramInterview/SQL这个网站上的问题还比较全。 1. Join type INNER JOIN: Returns all rows when there is at least one match in BOTH tables LEFT JOIN: Return all rows from the left table, and the matched rows from the...
SQL interview questions are asked in almost all interviews because database operations are very common in applications. SQL stands for Structured Query Language, which is a domain-specific programming language used for database communications and relational database management. SQL consists of standard c...
Coalesce in SQL: How to Use Coalesce() Function Index in SQL: Creating, Removing, and Altering SQL Cursors Composite Key in SQL: A Simple Guide Online SQL Compiler SQL Interview Questions SQL Cheat Sheet: Basic Syntax for Beginners SQL Commands Cheat Sheet – Learn SQL Commands in One GoSQL...
On the other hand, the command of TRUNCATE removes all the rows in the table. This is one of the basicSQL Interview questionsthat can be asked. 20) What are the different kinds of normalization and explain the following? There are a lot of successive levels of normalization. The following...
As a basic thumb rule “Data Files” need random access, “Log files” need sequential access and “TempDB” must be on a fastest drive and must be separated from data and log files. We have to consider the below factors while choosing the RAID level: ...
This article will walk you through some SQL interview questions and answers to help you with a job change or if you want to improve your interview skills. I have also tried to attach supporting articles for each question to help you learn more in-depth about the specified topics. I tried ...
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...
This is a common question by almost every fresher developer. SQL is absolutely case-insensitive when it comes to the case of clauses and queries. However, it does treat the data in a case sensitive manner. Hence, if you put a case sensitive WHERE clause, SQL ensures it is taken care of...