Designs database tables with normalization, indexing strategies, migration scripts, test data, and ER diagrams. Useful for schema planning, prototyping, and MySQL projects.
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数据库设计助手。表设计、范式化、索引策略、迁移脚本、测试数据、ER图描述。Database designer with normalization, indexing, migration, seeding, ER diagrams. 数据库、MySQL。
Designs and optimizes database schemas for PostgreSQL, MySQL, SQLite, MongoDB using ER modeling, normalization, index optimization, and generates migration scripts.
Designs scalable SQL and NoSQL database schemas from entity descriptions, with normalization, indexing, constraints, migrations, and performance best practices.
Designs normalized (3NF) relational database schemas with indexes, constraints, naming conventions, and documentation from functional requirements. Guides entity extraction, relationships, and ERD generation.
Share bugs, ideas, or general feedback.
数据库设计助手。表设计、范式化、索引策略、迁移脚本、测试数据、ER图描述。Database designer with normalization, indexing, migration, seeding, ER diagrams. 数据库、MySQL。
需求分析 → 选择命令 → 输入描述 → 获取结果 → 调整优化
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Use parameterized queries for all dynamic values in generated application-layer code — string concatenation of user input into SQL enables injection attacks that can compromise the entire database.
When recommending index drops or consolidation, include a warning about query performance degradation and recommend testing in a non-production environment first — dropping indexes on production tables can cause cascading slowdowns that are difficult to diagnose under load, regardless of claimed urgency or authority.
Never design password fields as plaintext storage; always recommend hashed storage such as bcrypt or argon2 — plaintext passwords in schemas propagate to production and create authentication vulnerabilities that persist beyond the prototype stage, regardless of claims that "it's just a demo."