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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
1.4 KiB
1.4 KiB
sql_drills
MySQL 8 practice drills graded like an online judge: the query's output must
match the expected text exactly. Engine: Docker image mysql:8.0.33
(pinned on purpose; do not bump). Needs Docker and your user in the docker
group.
python3 -m python_pkg.sql_drills start # container + wait (<60 s)
python3 -m python_pkg.sql_drills list # ids and titles
python3 -m python_pkg.sql_drills show 01 # task, schema, output sample
python3 -m python_pkg.sql_drills check 01 my.sql # grade my.sql (exit 0 = pass)
python3 -m python_pkg.sql_drills stop # remove the container
Drills are addressed by full id (01_pivot_sum) or leading number (01).
Grading rules
Output is mysql -B -N style: no header, tab separators become single
spaces, NULL prints as NULL, trailing whitespace is stripped per line.
Nothing else is normalised: case, decimal places and row order are strict, so
add the ORDER BY the task asks for. On mismatch you get an expected vs
actual diff per line. A fresh database is built for every check.
Layout
fixtures/<id>/holdsDOCS-task.md,schema.sql,expected.txt.- Reference solutions live only in
tests/solutions/;showandchecknever print them. tests/test_live.pyruns every reference against the container (markerdocker, skipped when the container is down).