Exam-style question
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Which combination is an example of a Group A database skill?.
- A.Non-SQL table access
- B.A simple data model with two interlinked tables
- C.Cross-table parameterised SQL with aggregate functions
- D.A single table database
Model answer
What a good answer should say
- Cross-table parameterised SQL with aggregate functions
Explanation
Why this works
Cross-table parameterised SQL and aggregate SQL functions are both listed in Group A. The other options are listed in Group B or Group C.
Common mistake
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