Software Database Layer

A Software Database Layer is a software architecture layer that manages data storage (to support data persistence through database systems).

• AKA: Storage Layer, Persistence Layer, Data Store Layer.
• Context:
  • It can typically store Data Records through storage engines.
  • It can typically execute Data Querys through query processors.
  • It can typically maintain Data Indexes through index managers.
  • It can typically ensure Data Integrity through constraint engines.
  • It can typically handle Data Transactions through transaction managers.
  • ...
  • It can often implement Data Backup through backup systems.
  • It can often provide Data Recovery through recovery systems.
  • It can often manage Data Replication through replication managers.
  • It can often support Data Partitioning through partition managers.
  • ...
  • It can range from being a Simple Storage System to being a Complex Database System, depending on its storage complexity.
  • It can range from being a Single Node Database to being a Distributed Database, depending on its deployment pattern.
  • It can range from being a SQL Database to being a NoSQL Database, depending on its data model.
  • ...
  • It can integrate with File System for physical storage.
  • It can connect to Backup System for data protection.
  • It can utilize Database Engine for data management.
  • ...
• Examples:
  • Relational Databases, such as:
    • PostgreSQL Systems for enterprise storage.
    • MySQL Systems for web storage.
    • Oracle Systems for corporate storage.
  • NoSQL Databases, such as:
    • MongoDB Systems for document storage.
    • Cassandra Systems for distributed storage.
    • Redis Systems for in-memory storage.
  • Time-Series Databases, such as:
    • InfluxDB Systems for time-series data.
    • TimescaleDB Systems for temporal data.
    • Prometheus Systems for metrics storage.
  • ...
• Counter-Examples:
  • Application Layer, which handles request processing rather than data storage.
  • Cache Layer, which manages temporary storage rather than permanent storage.
  • File System, which handles raw storage rather than structured storage.
• See: Database Pattern, Storage System Pattern, Data Management Pattern, Database Architecture.

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