O Level · Computer Science · Hard level · 7 questions
Databases: Exam Style
Records, fields and keys, flat file versus relational, data types and validation, and SQL, the topic where a query must be written, not described. This quiz is the hardest level, with O Level exam-style questions that mix the ideas together. 7 questions (multiple choice), marked the moment you finish, with the reason for every answer.
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Your score is saved against Databases, so you can see which topics are solid and which need another go.