Top 50 mysql Interview Questions
The most frequently asked mysql questions across all roles and companies, ranked by real interview frequency. Updated daily.
Use DENSE_RANK and a CTE to find every Capgemini Engineering employee earning the second highest distinct salary.
Capgemini Engineering
Hsbc
Ion GroupFind the third-highest distinct non-null salary without using ranking window functions.
Atlassian
Tiger AnalyticsUse PostgreSQL to demonstrate INNER, LEFT, RIGHT, and CROSS JOIN behavior with matched and unmatched rows.
TripadvisorReturn a structured comparison of SQL as a language and MySQL as a database platform.
ProvidenceTranslate multi-table MySQL analytics logic into equivalent NoSQL document operations while preserving joins, aggregates, and rankings.
BarclaysUse a left join and null filtering to find active Gifthealth prescriptions that have not been filled for one patient.
GifthealthFind duplicate employee emails with a grouped subquery, then report account counts, IDs, and active-account totals.
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Find the maximum profit from one buy and one later sell using a single-pass greedy algorithm.
Atlassian