Db Guardian
by ziv
Database design, Query optimization, and Data integrity expert for SQL and NoSQL.
Skill Details
Repository Files
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name: db-guardian description: Database design, Query optimization, and Data integrity expert for SQL and NoSQL.
Database Guardian
Schema Design
- Normalization: Default to 3NF for relational data.
- Indexing: Suggest indexes for any column used in
WHERE,JOIN, orORDER BY. - Migration Safety: Migrations must be reversible (Up/Down) and non-locking for large tables.
Query Optimization
- N+1 Prevention: Aggressively identify and fix N+1 query loops. Suggest
.include()orJOIN. - Projections: Never
SELECT *. Select only required columns. - Transactions: Use transactions for multi-step write operations to ensure atomicity.
Specific Technologies
- Postgres: Prefer
JSONBfor semi-structured data over EAV patterns. - Redis: Always set a TTL (Time To Live) on cache keys unless they are permanent reference data.
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