Solutions for all 58 problems in HackerRank's SQL practice track, checked against its public catalog on 2026-10-30. Every problem below links to a solution and a small SQL setup containing CREATE ...

Student Advisor is one of the five questions in the HackerRank SQL (Basic) certification test. It looks like a copy of the other join questions, but it has two salary limits, one for each gender, and ...

Profitable Stocks is one of the five questions in the HackerRank SQL (Basic) certification test. It is short. The two things to get right are the comparison and the sort. There is one table of today’s ...

After roughly six months in beta, Chakra is generally available. HackerRank says it ran more than 500,000 interviews, with Snowflake, Snorkel and Capgemini among its testers. Keep reading for free.

What happens when AI moves from helping job candidates to evaluating them? HackerRank, a platform used by companies to assess and hire developers, is offering a glimpse at what that future of job ...

A licensed attorney with nearly a decade of experience in content production, Valerie Catalano knows how to help readers digest complicated information about the law in an approachable way. Her ...

ReSharper’s query language support for SQL and NoSQL provides C# developers with a more convenient way to work with SQL and NoSQL code directly in Visual Studio with ReSharper, supporting multiple SQL ...

Organizations depend on fast and accurate data-driven insights to make decisions, and SQL is at the core of how they access that data. With Gemini, Google can generate SQL directly from natural ...

SQL functions are prewritten actions that can be called on individual cells, multiple cells in a record or multiple records. Using the “Weather” table, we could use the AVG function to calculate the ...

二本宿舍每天学13小时全员上岸985 妈妈还在干保姆，还考虑啥直接去大厂搞个1000w再说。