Databases & SQL curriculum

Start with CS50's Introduction to Databases with SQL and CS50x OpenCourseWare. Take notes until you can explain: Use SELECT, filtering, sorting, expressions, aggregates, grouping, and null semantics.

Do the first sequenced checks until the definitions, vocabulary, and setup are correct without hints.

Produce the assignment artifact, then pass the application and analysis checks tied to: Answer a dataset question set and explain the row set produced at each query stage.

Any miss becomes an error-log entry, a clean redo, and one nearby transfer problem before advancing.

Bring your attempted work, the exact missed check, and one question about: Translate questions into deterministic queries.

Start with CS50's Introduction to Databases with SQL and CS50x OpenCourseWare. Take notes until you can explain: Use primary and foreign keys plus inner, outer, cross, and self joins.

Do the first sequenced checks until the definitions, vocabulary, and setup are correct without hints.

Produce the assignment artifact, then pass the application and analysis checks tied to: Build a multi-table report and prove its row counts with intermediate checks.

Any miss becomes an error-log entry, a clean redo, and one nearby transfer problem before advancing.

Bring your attempted work, the exact missed check, and one question about: Detect duplicate amplification and missing relationships.

Start with CS50's Introduction to Databases with SQL and CS50x OpenCourseWare. Take notes until you can explain: Model entities, relationships, cardinality, types, constraints, and normal forms.

Do the first sequenced checks until the definitions, vocabulary, and setup are correct without hints.

Produce the assignment artifact, then pass the application and analysis checks tied to: Turn a messy spreadsheet into a normalized schema with an ER diagram and written invariants.

Any miss becomes an error-log entry, a clean redo, and one nearby transfer problem before advancing.

Bring your attempted work, the exact missed check, and one question about: Separate facts to prevent update anomalies.

Start with CS50's Introduction to Databases with SQL and CS50x OpenCourseWare. Take notes until you can explain: Use INSERT, UPDATE, DELETE, upserts, transactions, isolation concepts, and rollback.

Do the first sequenced checks until the definitions, vocabulary, and setup are correct without hints.

Produce the assignment artifact, then pass the application and analysis checks tied to: Implement a multi-step write transaction and test success, validation failure, and rollback behavior.

Any miss becomes an error-log entry, a clean redo, and one nearby transfer problem before advancing.

Bring your attempted work, the exact missed check, and one question about: Preserve invariants under failure and concurrency.

Start with CS50's Introduction to Databases with SQL and CS50x OpenCourseWare. Take notes until you can explain: Use views, triggers, stored logic carefully, and parameterized application queries.

Do the first sequenced checks until the definitions, vocabulary, and setup are correct without hints.

Produce the assignment artifact, then pass the application and analysis checks tied to: Create a safe reporting view and an application query layer with explicit inputs and outputs.

Any miss becomes an error-log entry, a clean redo, and one nearby transfer problem before advancing.

Bring your attempted work, the exact missed check, and one question about: Protect data boundaries and avoid injection.

Start with CS50's Introduction to Databases with SQL and CS50x OpenCourseWare. Take notes until you can explain: Read query plans and use indexes based on measured access paths.

Do the first sequenced checks until the definitions, vocabulary, and setup are correct without hints.

Produce the assignment artifact, then pass the application and analysis checks tied to: Profile a slow query, add or revise one index, and compare plans and timings.

Any miss becomes an error-log entry, a clean redo, and one nearby transfer problem before advancing.

Bring your attempted work, the exact missed check, and one question about: Recognize full scans, poor selectivity, and unnecessary work.

Start with CS50's Introduction to Databases with SQL and CS50x OpenCourseWare. Take notes until you can explain: Compare SQLite, PostgreSQL, and MySQL tradeoffs plus replication, caching, and partitioning concepts.

Do the first sequenced checks until the definitions, vocabulary, and setup are correct without hints.

Produce the assignment artifact, then pass the application and analysis checks tied to: Deliver a database-backed project with migrations, seed data, constraints, transactions, query-plan evidence, and recovery notes.

Any miss becomes an error-log entry, a clean redo, and one nearby transfer problem before advancing.

Bring your attempted work, the exact missed check, and one question about: Ship a tested schema and query portfolio.