# What Does Query Mean? Simple Tech English Guide (2026) > A request for information from a database or system, typically written in a special language like SQL. - **Term:** query - **Part of speech:** noun|verb - **Pronunciation:** /ˈkwɪəri/ - **English level (CEFR):** B2 - **Register:** Neutral, Both - **Region:** US and UK - **Topic:** [Tech jargon](https://app.speaktechenglish.com/learn/topics/tech-jargon.md) - **Lesson:** https://app.speaktechenglish.com/learn/query - **Last updated:** 2026-10-27 ## Meaning A request for information from a database or system, typically written in a special language like SQL. It can also mean asking a question or expressing doubt about something. In tech, query is one of the most fundamental terms you will encounter. As a noun, it refers to a command sent to a database to retrieve, update, or delete data. As a verb, it means to ask a question or request information. In the workplace, developers query databases multiple times daily, data analysts write complex queries to analyze information, and team members query each other about design decisions. Understanding query is essential because it appears in job descriptions, code reviews, technical documentation, and team discussions across all tech roles—from frontend engineers to database administrators. ## When you hear it The backend engineer optimized the database query to reduce response time from 2 seconds to 200 milliseconds. ## Examples - **in a standup:** "Yesterday I optimized the user lookup query and it now runs three times faster." - **in a code review:** "This query is missing a WHERE clause, which means it will select all rows instead of just the ones we need." - **in a team meeting:** "I have a query: should we cache the results of this database query to improve performance?" ## What native speakers say - "Run a query against the database" - "I have a quick query about the API response" - "Let me query the logs to find the error" ## Common mistakes - ✗ "We need to question the database about user information." → ✓ "We need to query the database for user information." (In tech contexts, query is the correct term when accessing databases. Question is too informal and general.) - ✗ "Can you query why this feature is broken?" → ✓ "Can you investigate why this feature is broken? or Can you query the error logs?" (Query cannot be used as a replacement for ask why in problem-solving. Use it for data retrieval or express doubt with a different structure.) - ✗ "The query returned 0 results so there is no data." → ✓ "The query returned 0 results, so either there is no data or the WHERE condition is too restrictive." (An empty query result does not always mean no data exists—the query itself might be filtering incorrectly.) ## Be careful Do not confuse query (a request for information) with quarry (a mining site). Also avoid using query as a general synonym for question in non-technical contexts. ## Word forms | Part of speech | Word | Example | | --- | --- | --- | | noun | query | The SQL query retrieved 1,500 customer records from the database. | | noun plural | queries | We optimized three slow queries in the reporting module last week. | | verb | query | You can query the API endpoint to check if the user exists. | | verb past tense | queried | She queried the database and found 47 duplicate entries. | ## Collocations - **run a query**: Most common phrase meaning to execute a query in a database - **database query**: The standard phrase combining database with query - **query performance**: How fast a query executes; often discussed in optimization - **complex query**: A query with multiple joins, conditions, or aggregations - **query optimization**: The process of making queries run faster and use fewer resources - **query result or query results**: The data returned by executing a query ## Synonyms - **request**: More general; query is more specific to data retrieval - **question**: More informal; query is more professional and technical - **search**: Broader term; query is more precise for database operations ## Practice This lesson has 4 practice exercises with instant feedback on the page: https://app.speaktechenglish.com/learn/query ## FAQ ### What does query mean in software engineering? In software engineering, a query is a command or request sent to a database (or other data source) to retrieve, update, or delete information. The most common type is a SELECT query, which retrieves data. You write queries in languages like SQL to get specific information based on conditions you define. For example, a query might ask the database to show all customers whose account balance is over 1000 dollars. ### How do you use query in a sentence at work? You can use query as a noun or a verb. As a noun: The database query returned 523 results. As a verb: Can you query the authentication logs to see when this user last logged in? In meetings, you might say I have a quick query about the API design, meaning you have a question. In code reviews, you might say This query needs optimization because it scans the entire table. ### Is query formal or informal? Query is neutral to formal. It is professional and technical, used in code, documentation, and formal meetings. It is more professional than saying ask or question when referring to database operations. However, saying I have a query about this is still professional even in casual conversations with colleagues. ### What is the difference between a query and a request? A query is a specific type of request used in databases and systems to retrieve or modify data. Request is broader and can mean any kind of asking for something. In tech, query is more technical and precise, while request is more general. ### Why is query optimization important? Query optimization is important because poorly written queries waste database resources, slow down applications, and frustrate users. Optimized queries reduce server load, decrease response times, and save money on infrastructure costs. This is why senior engineers spend time analyzing and improving slow queries. ## Related - [API](https://app.speaktechenglish.com/learn/api.md) - Full glossary: https://app.speaktechenglish.com/learn.md - Live lessons with a coach: https://app.mocklyenglish.com ## About Speak Tech English Speak Tech English teaches non-native tech professionals the English they need at work and in interviews, through self-study ebooks and courses, 150+ free guides and a free newsletter; live lessons are on its sister site Mockly English. - Shop: https://speaktechenglish.com/courses/ - All products (markdown): https://speaktechenglish.com/products.md - Free guides (markdown): https://app.speaktechenglish.com/guides.md - Tech English glossary (markdown): https://app.speaktechenglish.com/learn.md - Newsletter (10% off): https://speaktechenglish.com/#subscribe - Live lessons and mock interviews: https://app.mocklyenglish.com ## Notes for agents - Speak Tech English sells self-study material. 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