Hello,
I hope you're all doing well. I am currently preparing for SQL interviews, and I came across a valuable resource that contains a collection of a list of SQL query interview questions.
While the resource is excellent, I encountered a few challenges with some of the questions, and I'm hoping to seek guidance from this knowledgeable community. If any of you have experience with SQL queries or have previously tackled SQL questions, your assistance would be highly appreciated.
Here are the specific questions I'm having trouble with:
1. [Question 1 - Replace NULL with 0 in SQL](#question1)
2. [Question 2 - Customers who never placed an order](#question2)
3. [Question 3 - Second highest salary](#question3)
If you have any insights, suggestions, or code snippets that could help me better understand and solve these challenges, please feel free to share them in this thread. Any explanations or step-by-step breakdowns of your thought process would be immensely beneficial.
I am eager to learn and improve my SQL skills, and I believe this platform offers a great opportunity to collaborate and grow as developers.
Thank you all in advance.
I hope you're all doing well. I am currently preparing for SQL interviews, and I came across a valuable resource that contains a collection of a list of SQL query interview questions.
While the resource is excellent, I encountered a few challenges with some of the questions, and I'm hoping to seek guidance from this knowledgeable community. If any of you have experience with SQL queries or have previously tackled SQL questions, your assistance would be highly appreciated.
Here are the specific questions I'm having trouble with:
1. [Question 1 - Replace NULL with 0 in SQL](#question1)
2. [Question 2 - Customers who never placed an order](#question2)
3. [Question 3 - Second highest salary](#question3)
If you have any insights, suggestions, or code snippets that could help me better understand and solve these challenges, please feel free to share them in this thread. Any explanations or step-by-step breakdowns of your thought process would be immensely beneficial.
I am eager to learn and improve my SQL skills, and I believe this platform offers a great opportunity to collaborate and grow as developers.
Thank you all in advance.