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Python sqlite3 parameterised query

Code pattern Check Code patterns

Definition

Use ? placeholders and pass values separately, never join user text into the SQL string, to stop SQL injection.

Example

cur.execute("SELECT * FROM user WHERE name = ?", (name,))

Check this one: Parameterised queries are standard secure practice (defensive input handling); the syllabus does not name sqlite3.

Where it is used in the test

Syllabus area: Code patterns.

Question types it can appear in

No past question in this bank is linked to this term yet. It can still be tested through the question types above.

Study links

How to use it in an answer

A model sentence

General advice, built from the definition and example above

Code pattern: “Use ?” Then apply it: cur.execute("SELECT * FROM user WHERE name = ?", (name,))

In a short answer, give the definition in your own words first, then tie it to the situation in the question. Do not copy the example above unless it fits the scenario.

Command words used with it

General advice

No linked question shows the command word for this term. Across the past python and short answer questions in this bank the words used most are: Explain, Outline, Describe, Compare, Classify, Analyse. Check the actual word in your question.

Technique for the question types

Common mistakes

Marker feedback on other questions of the same type (code and diagram feedback often applies across questions)
  • Check the sources: Parameterised queries are standard secure practice (defensive input handling); the syllabus does not name sqlite3.
  • Python questions (2025 HSC exam Q19): process string inputs; use a selection structure; code must execute in the environment; use correct indentation; call functions in the main program after defining them.
  • Python questions (2025 HSC exam Q26): replicate the grid; use the random library; use selection and looping to access the list; include a method of checking the number of values; use meaningful variable names and constants; avoid overly complex structures such as nested IF loops.
General advice
  • Use the term exactly as the syllabus words it, then link it to the scenario in the question; the 2025 feedback repeatedly rewards using the stimulus.
  • Answer the command word: outline gives main points only, explain gives a reason or cause, discuss gives both sides.

Same group in the syllabus: Python input and output · Python selection (if elif else) · Python for loop and range · Python while loop · Python strings and slicing · Python lists · Python 2D list (grid) · Python random numbers · Python functions · Global and local variables · Python file handling · Python modules and libraries · Python classes and objects · Python validation function pattern