[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"skill:01M6HAGT0N35B3VKB1BCE7GR2V":3,"skill-same:01M6HAGT0N35B3VKB1BCE7GR2V":56},{"skillNo":4,"name":5,"nameZh":6,"description":7,"descriptionZh":6,"repositoryFullName":8,"ownerLogin":9,"ownerAvatarUrl":10,"ownerAccountNo":11,"ownerDisplayName":12,"repositoryNo":13,"starsCount":14,"licenseSpdxId":15,"licenseFileUrl":6,"sourceHtmlUrl":16,"categories":17,"keywords":18,"publishedAt":27,"linkOnly":28,"markdownContent":29,"markdownBody":30,"frontMatter":31,"refName":34,"commitSha":35,"skillDirectory":36,"forksCount":14,"repositoryHtmlUrl":37,"repositoryHomepageUrl":6,"ownerHtmlUrl":38,"ownerBlogUrl":39,"ownerDescription":40,"updatedAt":41,"install":42,"resources":55},"01M6HAGT0N35B3VKB1BCE7GR2V","relational",null,"Relational data model, normalization, and query optimization","NeuralBlitz\u002FMito","NeuralBlitz","https:\u002F\u002Favatars.githubusercontent.com\u002Fu\u002F79354388?v=4","01M6H8T2TFH477HRS0KTSTKR2E","David 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**3NF**: No transitive dependencies\n- **BCNF**: Boyce-Codd normal form\n- **Denormalization**: When and how to denormalize\n\n### Query Optimization\n- Index selection and composite indexes\n- Query execution plans\n- Join order optimization\n- Subquery vs join\n- Partition pruning\n\n### Transactions\n- ACID properties\n- Isolation levels (READ UNCOMMITTED, READ COMMITTED, REPEATABLE READ, SERIALIZABLE)\n- Locking strategies\n- Deadlock prevention\n- Savepoints and rollback\n\n### Advanced SQL\n- Window functions\n- CTEs (Common Table Expressions)\n- Recursive queries\n- JSON\u002FJSONB operations\n- Full-text search\n- Spatial queries\n\n### Design Patterns\n- Entity-Attribute-Value (EAV)\n- Single Table Inheritance\n- Class Table Inheritance\n- Materialized paths\n- Audit tables\n\n### Performance\n- Query profiling\n- Index maintenance\n- Statistics management\n- Connection pooling\n- Read replicas\n- Partitioning strategies\n","## What I do\n- Apply relational algebra and set 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