Hi there ππ‘οΈ
I'm WangShen007 (ηη ) β¨, a Database Administrator and Architect specializing in enterprise-grade Oracle, MySQL, and cloud-native database systems.
My work focuses on building resilient, high-performance, and highly available data infrastructure for business-critical applications πΎ.
Last updated in June 2026 ποΈ
ποΈ Database Architecture β Oracle RAC, Data Guard, MySQL replication, sharding, and distributed database design.
β‘ Performance Tuning β SQL optimization, execution plan analysis, indexing strategies, and bottleneck diagnosis.
π‘οΈ High Availability & DR β backup/recovery strategies, failover automation, and disaster recovery planning.
βοΈ Cloud DatabaseOps β AWS RDS, Azure SQL, Alibaba Cloud ApsaraDB, and containerized database deployment.
π€ Database Automation β automated health checks, monitoring alerts, and infrastructure-as-code for DB provisioning.
π @Homepage β this GitHub profile repository.
π― @sql-optimization β SQL performance tuning and index design cases.
π @sqlStudy β zero-to-hero SQL learning notes with hands-on exercises.
π§ @dba-learning β cloud database operations, monitoring, and architecture notes.
π @python_shujufenxi β Python data analysis toolkit for database operations.
π€ @python_base β Python & Shell automation scripts for daily DBA tasks.
βοΈ @blog β technical blog and learning reflections.
| Focus | Project / Notes |
|---|---|
| π― SQL Performance Tuning | Slow query diagnosis and indexing strategy design. sql-optimization |
| π SQL Learning Notes | From zero to mastery: MySQL & PostgreSQL core concepts and exercises. sqlStudy |
| π§ Database Monitoring Stack | Building a full-stack monitoring system with Prometheus + Grafana for database health. dba-learning |
| π Data Analysis for DBA | Python-based data processing and visualization from a DBA perspective. python_shujufenxi |
| π€ Automation Scripts | Python & Shell scripts for daily DBA tasks and health checks. python_base |
Oracle Β· MySQL Β· PostgreSQL Β· SQL Server Β· MongoDB Β· Redis Β· SQL Β· PL/SQL Β· T-SQL Β· Shell Β· Python Β· Go
Performance Tuning Β· Execution Plan Analysis Β· Index Design Β· Partitioning Β· Backup & Recovery Β· Data Migration Β· Capacity Planning Β· Security Hardening Β· HA/DR Design Β· Monitoring & Alerting
π Deep dive into Oracle 19c/21c autonomous database features and AI-driven SQL tuning advisors.
π± Exploring cloud-native databases (TiDB, OceanBase, PolarDB) and their operational models.
π€ How to balance data security, performance, and cost efficiency in hybrid cloud environments.
πͺ How automation and Infrastructure-as-Code can transform traditional DBA workflows.
- sql-optimization: SQL performance tuning notes and index design cases.
- sqlStudy: Zero-to-hero SQL learning notes with hands-on exercises.
- python_shujufenxi: Python data analysis toolkit for database operations.
- python_base: Python & Shell automation scripts for daily DBA tasks.
- dba-learning: Cloud database operations, monitoring, and architecture notes.
- blog: Technical blog and learning reflections.
| Experience | Domains | Methods |
|---|---|---|
| 3+ years Oracle & MySQL enterprise administration | HA/DR, Performance Tuning, Cloud DB | RAC, Data Guard, SQL Tuning, AWR/ASH Analysis, RMAN, OEM |