Boost your SQL interview readiness with these 35 carefully selected SQL Interview Questions and Answers. Includes real-world examples, scenario-based queries, and tips to impress interviewers in 2026.

Relational SQL databases, which have been around since the 1980s, historically ran on mainframes or single servers—that’s all we had. If you wanted the database to handle more data and run faster, you ...

The definition of a database. It defines the structure and content in each data element within the structure. Schemas are often designed with visual modeling tools that automatically create the SQL ...

Often data is categorized into very high-level groupings of structured or unstructured. Generally, structured data is considered data that conforms to an easily identifiable pattern and as part of ...