Recognises a CHECK constraint parsed and ignored
https://knobit.org/id/knobit/K-808
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| Context functions | Result evaluation |
|---|---|
| Knobit creation methods | AI generated, human edited |
| Knobit types | Skill |
| LCG purposes | Assessing the learner's knowledge or skill state |
| LCG purposes | Selecting an assessment task or learning activity |
| action verb | Recognises en |
| applies knowledge | Explains rule enforcement mechanisms and platform enforcement |
| applies knowledge | Explains SQL dialect differences |
| assessment criterion | Flags the deficient case and passes the acceptable one. Deficient: MySQL 5.7 target generated without `--mysql-version`; `ck_fact_payment_status_code` listing `PND`, `SET`, `RTN` deploys cleanly, enforces nothing, and a changed feed loads `SETT` for a month before a report notices Acceptable: `--mysql-version 5.7`, the checks commented out so no reader believes otherwise, and a `validity` DQ rule for `payment_status_code` for as long as that target is in scope en |
| assessment method | skill-tests task: Generated DDL review, Postgres and Snowflake (DDL review skills) en |
| conforms to profile | https://oppekava.edu.ee/a/Knobitite_kirjeldamise_ja_seostamise_reeglid#LCG-KNOBIT-0.1 |
| dcterms:identifier | K-808 |
| dcterms:license | https://creativecommons.org/licenses/by/4.0/ |
| dcterms:source | Review checklist 05-ddl, row 8; this skill (08-ddl.md); ISO 9075 en |
| expected result | The checks to cover by data quality rules en |
| owl:sameAs | https://bitbucket.org/reffa/ontology/id/knobit/data-modelling/08-ddl/08 |
| rdfs:label | Recognises a CHECK constraint parsed and ignored en |
| schema:creativeWorkStatus | accepted |
| schema:isPartOf | Data modelling (DAMA-DMBOK2) |
| skos:altLabel | CHECK parsed and silently ignored (generated DDL) en |
| skos:definition | MySQL before 8.0.16 parses `CHECK` and ignores it, which is worse than rejecting it. `--mysql-version 5.7` makes the generator emit them commented out with a header note; without the flag they are emitted live and read as enforced. en |
| skos:prefLabel | Recognises a CHECK constraint parsed and ignored en |
| target object | CHECK on MySQL before 8.0.16 en |
Used by
| includes knobit | Generates DDL per target dialect and reviews it against model, engine, data and deployment |
|---|---|
| requires knobit | Generate and review DDL |