Hello friends, in this SQL hands-on tutorial, you’ll find 50 tricky SQL queries for practice with their answers. Practicing tricky SQL queries is like sharpening your tools for working with data. SQL skills matter because they help you handle and understand information in databases, something t...
In the SQL practice, we can resolve the parameter sniffing in different ways: For SQL Server 2022 consider enabling Parameter Sensitive Plan optimization Can use WITH RECOMPILE option in the stored procedure Can use the RECOMPILE option when creating a stored procedure Can use OPTIMIZE FOR ...
SQL Practice Problems is different. Based on my years of experience working with data, I present those data problems that come upall the time. As the difficulty of the practice problems increases gradually, you’re continually challenged. The problems are unique and evenfun—you canactually enjoy...
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 interviewers with both your technical skills and your problem-solving mindset. ...
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...
Q I have a SQL Server 2000 SP3 database schema which is a build of Table A with a foreign key to Table B. Because the data in Table B is sensitive, I keep it encrypted, but that's not secure enough for my needs. I am looking for a best-practice solution to be able to hide ...
This article will show some important questions and answers to practice SQL. Read more » Azure SQL – a FAQ article January 12, 2022byDaniel Calbimonte Introduction In this article, we will talk about Azure SQL. The article will compile the FAQ about this topic. The article will cover FA...
SQLstands for Structured Query Language. It is a language that lets you interact with databases. SQL is used to manage relational databases, the most common type of database in practice. The ability to use SQL will help you get more out of your data than just reading it. It can be used...
Finally, there are other platforms out there with similar services to help you learn SQL. A small list: Best Ways to Practice SQL Queries w3resource — This is a great free resource for writing queries. The SQL Murder Mystery — This is another one of my favorites thanks to its fun, int...
For someone like myself who works mostly with BigQuery’s StandardSQL or PostgreSQL there are a set of commands to follow to get another language working. Alternatively, it might be a good chance to practice other techniques that you might not think of when using the variant of SQL you ...