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Krzysztof kuhy Rudnicki
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Docker mysql:8.0.33 container, judge-style output grading, 12 original drills with live-verified references kept in tests only. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WzxdWZewj4WS5X6AZyjWDp
33 lines
1.4 KiB
Markdown
33 lines
1.4 KiB
Markdown
# sql_drills
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MySQL 8 practice drills graded like an online judge: the query's output must
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match the expected text exactly. Engine: Docker image `mysql:8.0.33`
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(pinned on purpose; do not bump). Needs Docker and your user in the `docker`
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group.
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```bash
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python3 -m python_pkg.sql_drills start # container + wait (<60 s)
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python3 -m python_pkg.sql_drills list # ids and titles
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python3 -m python_pkg.sql_drills show 01 # task, schema, output sample
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python3 -m python_pkg.sql_drills check 01 my.sql # grade my.sql (exit 0 = pass)
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python3 -m python_pkg.sql_drills stop # remove the container
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```
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Drills are addressed by full id (`01_pivot_sum`) or leading number (`01`).
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## Grading rules
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Output is `mysql -B -N` style: no header, tab separators become single
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spaces, `NULL` prints as `NULL`, trailing whitespace is stripped per line.
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Nothing else is normalised: case, decimal places and row order are strict, so
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add the `ORDER BY` the task asks for. On mismatch you get an expected vs
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actual diff per line. A fresh database is built for every check.
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## Layout
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- `fixtures/<id>/` holds `DOCS-task.md`, `schema.sql`, `expected.txt`.
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- Reference solutions live only in `tests/solutions/`; `show` and `check`
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never print them.
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- `tests/test_live.py` runs every reference against the container (marker
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`docker`, skipped when the container is down).
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