337 lines
8.4 KiB
Markdown
337 lines
8.4 KiB
Markdown
---
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title: "Database Design & Management"
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category: "Infrastructure"
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icon: "🗄️"
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short_description: "Database architecture, design, optimization, migration, and managed database services for SQL and NoSQL systems."
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---
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# Database Design & Management
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Expert database solutions from architecture and design to optimization and ongoing management. We help organizations build reliable, performant, and scalable data storage systems.
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## Database Design & Architecture
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### Relational Database Design
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- Entity-relationship modeling (ERD)
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- Database normalization (1NF, 2NF, 3NF, BCNF)
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- Schema design best practices
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- Primary and foreign key relationships
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- Indexing strategy
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- Constraint definition (unique, check, not null)
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### Data Modeling
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- Conceptual data modeling
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- Logical data modeling
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- Physical data modeling
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- Dimensional modeling for data warehouses
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- Star and snowflake schemas
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- Slowly changing dimensions (SCD)
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### Architecture Patterns
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- Single-instance databases
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- Master-slave replication
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- Multi-master replication
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- Sharding and partitioning
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- Database clustering
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- Microservices database patterns
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## SQL Database Solutions
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### PostgreSQL
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- Installation and configuration
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- Performance tuning (shared_buffers, work_mem, etc.)
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- Advanced features (JSONB, full-text search, arrays)
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- PostGIS for geospatial data
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- Logical replication and streaming
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- Connection pooling (PgBouncer)
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### MySQL/MariaDB
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- MySQL 8.x and MariaDB setup
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- InnoDB optimization
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- Query cache configuration
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- Master-slave replication
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- Galera Cluster for high availability
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- Backup and recovery (mysqldump, Percona XtraBackup)
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### Microsoft SQL Server
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- SQL Server installation and licensing
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- T-SQL development
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- Always On availability groups
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- SQL Server Agent jobs
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- Integration Services (SSIS)
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- Reporting Services (SSRS)
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### Other SQL Databases
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- Oracle Database administration
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- SQLite for embedded applications
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- CockroachDB for distributed SQL
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- TimescaleDB for time-series data
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## NoSQL Database Solutions
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### MongoDB
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- Document-oriented database design
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- Replica set configuration
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- Sharded cluster setup
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- Aggregation pipeline optimization
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- Schema validation
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- Change streams for real-time updates
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### Redis
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- In-memory data structure store
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- Caching strategies and patterns
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- Pub/Sub messaging
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- Redis Sentinel for high availability
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- Redis Cluster for horizontal scaling
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- Persistence configuration (RDB, AOF)
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### Cassandra
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- Wide-column store design
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- Partition key selection
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- Replication strategy
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- Consistency level tuning
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- Repair and maintenance
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- Performance optimization
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### Other NoSQL Databases
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- Elasticsearch for full-text search
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- Neo4j for graph data
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- DynamoDB integration
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- Couchbase for mobile sync
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- InfluxDB for metrics and time-series
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## Database Optimization
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### Query Optimization
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- Query execution plan analysis
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- Index optimization
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- Query rewriting and restructuring
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- Avoiding N+1 queries
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- Batch operations
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- Prepared statements and parameterization
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### Performance Tuning
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- Configuration parameter optimization
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- Memory allocation tuning
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- Connection pool sizing
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- Slow query log analysis
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- Deadlock detection and resolution
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- Vacuum and maintenance operations
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### Indexing Strategies
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- B-tree indexes
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- Hash indexes
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- Full-text indexes
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- Partial and conditional indexes
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- Covering indexes
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- Index maintenance and rebuilding
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## Database Migration Services
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### Migration Planning
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- Current state assessment
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- Migration strategy development
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- Downtime estimation and minimization
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- Rollback planning
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- Testing and validation procedures
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### Database Migrations
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- MySQL to PostgreSQL migration
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- Oracle to PostgreSQL migration
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- SQL Server to PostgreSQL migration
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- On-premise to cloud migration (AWS RDS, Azure SQL)
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- NoSQL to SQL (and vice versa)
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- Data transformation and cleaning
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### Schema Migration Tools
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- Flyway for version-controlled migrations
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- Liquibase for database refactoring
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- Alembic for Python applications
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- ActiveRecord Migrations (Rails)
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- Entity Framework Migrations (.NET)
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- Custom migration scripts
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## Backup & Disaster Recovery
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### Backup Strategies
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- Full, incremental, and differential backups
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- Point-in-time recovery (PITR)
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- Continuous archiving and WAL shipping
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- Cross-region backup replication
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- Backup encryption
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- Backup testing and validation
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### High Availability Solutions
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- Automatic failover configuration
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- Load balancing read queries
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- Multi-region active-active setup
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- Zero-downtime deployments
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- Health checks and monitoring
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### Disaster Recovery Planning
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- Recovery Time Objective (RTO) planning
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- Recovery Point Objective (RPO) planning
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- Disaster recovery testing
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- Documentation and runbooks
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- Incident response procedures
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## Database Security
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### Access Control
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- User and role management
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- Principle of least privilege
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- Row-level security (RLS)
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- Column-level encryption
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- Database firewall rules
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- VPN and private networking
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### Data Encryption
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- Encryption at rest (TLS/AES)
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- Encryption in transit (SSL/TLS)
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- Transparent data encryption (TDE)
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- Application-level encryption
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- Key management and rotation
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### Compliance & Auditing
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- GDPR compliance (right to erasure, data portability)
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- HIPAA compliance for healthcare data
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- PCI DSS for payment data
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- Audit logging and retention
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- Access log monitoring
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## Data Warehousing & Analytics
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### Data Warehouse Design
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- Star and snowflake schema design
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- Fact and dimension tables
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- Aggregate tables for performance
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- ETL pipeline development
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- Data quality and validation
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### OLAP Solutions
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- Amazon Redshift
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- Google BigQuery
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- Snowflake data warehouse
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- ClickHouse for analytics
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- Apache Druid for real-time analytics
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### ETL/ELT Processes
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- Apache Airflow for orchestration
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- Data pipeline development
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- Data transformation with DBT
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- Incremental data loading
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- Data validation and quality checks
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## Real-Time & Streaming Data
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### Change Data Capture (CDC)
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- Debezium for CDC
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- Database triggers and notifications
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- PostgreSQL logical replication
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- MySQL binlog streaming
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- Event streaming to Kafka
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### Real-Time Analytics
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- Apache Kafka integration
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- Apache Flink for stream processing
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- Real-time aggregations
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- Materialized views
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- Time-series optimizations
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## Database Monitoring
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### Performance Monitoring
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- Query performance tracking
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- Connection pool monitoring
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- Slow query identification
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- Resource utilization (CPU, memory, I/O)
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- Replication lag monitoring
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### Monitoring Tools
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- Prometheus and Grafana
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- pgAdmin for PostgreSQL
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- MySQL Workbench
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- DataDog database monitoring
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- Custom monitoring dashboards
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### Alerting & Notifications
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- Threshold-based alerts
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- Anomaly detection
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- Downtime alerts
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- Replication failure notifications
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- Backup success/failure alerts
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## Database as a Service (DBaaS)
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### Managed Database Services
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- AWS RDS (PostgreSQL, MySQL, SQL Server, Oracle)
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- Amazon Aurora (MySQL/PostgreSQL compatible)
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- Google Cloud SQL
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- Azure SQL Database
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- MongoDB Atlas
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- Redis Enterprise Cloud
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### Self-Hosted Alternatives
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- PostgreSQL on Docker/Kubernetes
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- MySQL with automation (Ansible)
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- Private database clusters
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- On-premise high availability
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- Hybrid cloud setups
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## Specialized Database Services
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### Geospatial Databases
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- PostGIS for spatial data
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- Location-based queries
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- Spatial indexing (GiST, R-tree)
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- Geographic data visualization
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- Distance and proximity calculations
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### Time-Series Databases
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- TimescaleDB (PostgreSQL extension)
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- InfluxDB for metrics
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- Prometheus TSDB
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- Data retention policies
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- Downsampling and aggregation
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### Graph Databases
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- Neo4j for connected data
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- Amazon Neptune
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- Relationship queries
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- Graph algorithms
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- Social network analysis
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## Database Development
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### Stored Procedures & Functions
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- PL/pgSQL (PostgreSQL)
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- T-SQL (SQL Server)
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- PL/SQL (Oracle)
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- Custom function development
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- Trigger implementation
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### Database API Development
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- REST API over database
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- GraphQL database integration
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- PostgREST for automatic APIs
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- Hasura for GraphQL
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- Database-backed microservices
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## Training & Documentation
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- Database administration training
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- Query optimization workshops
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- Schema design best practices
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- Documentation and runbooks
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- Knowledge transfer sessions
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## Technical Expertise
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- **SQL Databases:** PostgreSQL, MySQL, SQL Server, Oracle
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- **NoSQL:** MongoDB, Redis, Cassandra, Elasticsearch
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- **Cloud:** AWS RDS/Aurora, Google Cloud SQL, Azure SQL
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- **Tools:** pgAdmin, DataGrip, DBeaver, Tableau
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- **Languages:** SQL, PL/pgSQL, Python, Go
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Transform your data management with professional database solutions. Contact us for a consultation on your database needs.
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