SQL (Coding) Quiz
Writing and reading SQL — queries, joins, indexing basics, and the relational concepts behind working databases.
This category currently has 135 questions in the SERVBG quiz bank. Below are a few sample questions — the full interactive quiz shuffles through the whole set with instant scoring.
Sample questions
Which clause filters rows after FROM?
- PICK
- HAVING
- WHERE
- SELECT
- FILTER
Which clause filters groups after GROUP BY?
- GROUPING
- HAVING
- WHERE
- GROUP
- FILTER
Which keyword removes duplicate rows?
- ONLY
- DEDUP
- NODUP
- UNIQUE
- DISTINCT
Which SQL command inserts data?
- APPEND
- ADD
- PUT
- INSERT
- CREATE ROW
Which command modifies existing rows?
- SET
- CHANGE
- EDIT
- MODIFY
- UPDATE
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