As a best SQL practice consider the nullable column values when we decide to use the NOT IN operator in the queries. What is the difference between NOLOCK and READPAST query hints? The NOLOCK hints allow reading data from the table by ignoring any locks but THE NOLOCK hint can’t ...
Much more difficult to create, andmuchmore valuable, are practice problems that coverthe most common issuesthat you’ll encounter in your work with data. You can be sure that if a problem shows up in SQL Practice Problems, it’s one that will come up repeatedly in day-to-day work with ...
It is used to access and manipulate data in a database, including creating and modifying tables and columns and querying the data usingSQL commands. 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...
In SQL interviews, success comes from a combination of mastering core concepts, consistent practice, and a calm, structured approach to solving problems. By understanding key SQL operations, optimizing your queries, and being prepared to tackle complex scenarios, you’ll be able to impress interviewe...
When we execute a query and use theWHEREkeyword on a column that does not have an index, then the SQL Server has to do a full-table scan and check every row to find matches. This is a bad practice because it can be unpredictable in terms of execution time. Therefore this process may...
SQL Practice: Common Questions and Answers for the final round interviews January 26, 2023byEsat Erkec In this article, we are going to make a SQL practice exercise that will help to prepare for the final round of technical interviews of the SQL jobs. ...
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We have talked a ton about the tests and quizzes and challenges and problems when you sit for your following SQL interview. But to do that, you should practice the queries and understand the underlying logic and algorithms behind those concepts. ...
1 answerOne of the answers was accepted by the question author. Problems with passing Binary as a table-valued parameter I'm using table-valued parameters to pass binary values. I used SQLBindParameter and passed the values as SQL_C_BINARY, SQL_BINARY, BinarySize, etc. as the arguments, ...
How do you overcome the problems? 1 When is the use of UPDATE_STATISTICS command? 1 What is SQL Profiler? 1 What command using Query Analyzer will give you the version of SQL server and operating system? 1 What does it mean to have QUOTED_IDENTIFIER ON? What are the implications ...