SQL & Databases — GCSE Computer Science Revision
Revise SQL & Databases for GCSE Computer Science. Step-by-step explanation, worked examples, common mistakes and exam-style practice aligned to AQA, Edexcel, OCR, WJEC, Eduqas, CCEA, Cambridge International (CIE), SQA, IB, AP.
At a glance
- What StudyVector is
- An exam-practice platform with board-aligned questions, explanations, and adaptive next steps.
- This topic
- SQL & Databases in GCSE Computer Science: explanation, examples, and practice links on this page.
- Who it’s for
- Students revising GCSE Computer Science for UK exams.
- Exam boards
- Practice is aligned to major specifications (AQA, Edexcel, OCR, WJEC, Eduqas, CCEA, Cambridge International (CIE), SQA, IB, AP).
- Free plan
- Sign up free to use tutor paths and feedback on your answers. Free access is 3 days uncapped, then 30 min practice/day. Pricing
- What makes it different
- Syllabus-shaped practice and progress tracking—not generic AI answers.
Topic has curated content entry with explanation, mistakes, and worked example. [auto-gate:promote; score=70.6]
Next in this topic area
Next step: Testing, Robustness & Defensive Design
Continue in the same course — structured practice and explanations on StudyVector.
Go to Testing, Robustness & Defensive DesignWhat is SQL & Databases?
A database is a structured collection of data, and SQL (Structured Query Language) is the standard language used to interact with them. At GCSE, you need to understand how to use SQL to perform queries on a single table, including using SELECT to retrieve data, FROM to specify the table, WHERE to filter results, and ORDER BY to sort them.
Board notes: AQA, Edexcel, and OCR all require knowledge of basic SQL SELECT statements for querying a single table. You should be comfortable with SELECT, FROM, WHERE, and ORDER BY.
Step-by-step explanationWorked example
Given a table of students called `Students` with columns `FirstName`, `LastName`, and `Score`. To find all students with a score over 80 and list them alphabetically by last name, the SQL query would be: `SELECT FirstName, LastName FROM Students WHERE Score > 80 ORDER BY LastName ASC;`.
Practise this topic
Jump into adaptive, exam-style questions for SQL & Databases. Free to start; sign in to save progress.
Common mistakes
- 1Confusing the database with the database management system (DBMS). The database is the data itself; the DBMS is the software used to manage it (like Microsoft Access or MySQL).
- 2Forgetting to use quote marks for string values in a WHERE clause, for example, `WHERE name = Bob` instead of the correct `WHERE name = 'Bob'`.
- 3Mixing up the order of the clauses. The basic order is `SELECT ... FROM ... WHERE ... ORDER BY ...`.
SQL & Databases exam questions
Exam-style questions for SQL & Databases with mark-scheme style solutions and timing practice. Aligned to AQA, Edexcel, OCR, WJEC, Eduqas, CCEA, Cambridge International (CIE), SQA, IB, AP specifications.
SQL & Databases exam questionsGet help with SQL & Databases
Get a personalised explanation for SQL & Databases from the StudyVector tutor. Ask follow-up questions and work through problems with step-by-step support.
Open tutorFree full access to SQL & Databases
Sign up in 30 seconds to unlock step-by-step explanations, exam-style practice, instant feedback and on-demand coaching — completely free, no card required.
Try a practice question
Unlock SQL & Databases practice questions
Get instant feedback, step-by-step help and exam-style practice — free, no card needed.
Start Free — No Card NeededAlready have an account? Log in
Step-by-step method
Step-by-step explanation
4 steps · Worked method for SQL & Databases
Core concept
A database is a structured collection of data, and SQL (Structured Query Language) is the standard language used to interact with them. At GCSE, you need to understand how to use SQL to perform querie…
Frequently asked questions
What is a primary key in a database?
A primary key is a field in a table that uniquely identifies each record. For example, a `StudentID` number would be a good primary key as no two students will have the same one.
What does the `*` symbol do in a SELECT statement?
The asterisk (`*`) is a wildcard that means 'all columns'. So, `SELECT * FROM Students` will retrieve all data for all columns from the Students table.