00-future-themes.md

SQL Future Themes Roadmap

Architecture / Rationale

This roadmap keeps the guide scalable without mixing advanced topics into the foundational levels.

Planned progression:

1. Joins (next): INNER, LEFT, RIGHT, anti-joins, join order strategy.
2. Indexing Deep Dive: composite index design, covering indexes, cardinality analysis.
3. Transactions: isolation levels, lock behavior, deadlock patterns.
4. Query Optimization: plan regression controls and workload benchmarking.
5. Operational SQL: migrations at scale, backups, restore drills.

Query / Code Blocks

-- Example placeholder for upcoming joins module
SELECT u.user_id, u.name, c.company_name
FROM users u
INNER JOIN companies c ON c.company_id = u.company_id;

Performance / Optimization Notes

• Keep advanced topics isolated by level to preserve entry-level readability.
• Promote topics from roadmap to active modules only after baseline examples and performance checks are documented.