---
esco_uri: http://data.europa.eu/esco/skill/022dc430-872a-473a-9cf4-fed4895e58ad
esco_label: "define database physical structure"
relation: essential
onet_soc: 15-1242.00
source: model-knowledge
confidence: high
qa_count: 0
generator: gemma3:27b (prompt-designed and spot-checked by Claude)
generated: 2026-07-10
---

# define database physical structure — Database Administrator

As a Database Administrator (DBA), 'defining database physical structure' isn’t just about *knowing* data types; it's about making informed decisions that directly impact performance, scalability, and storage costs. Daily tasks involve translating logical data models into concrete implementations – choosing appropriate filegroups for SQL Server, tablespaces for Oracle, or storage engines like InnoDB/MyISAM in MySQL. You'll be specifying index strategies (clustered, non-clustered, covering) based on query patterns, carefully selecting data types to balance precision with storage efficiency, and defining constraints to ensure data integrity. This isn’t a one-time setup; it’s ongoing refinement as application needs evolve.

## Weitere Anreicherung

Stage-2 source for future practitioner grounding: arXiv cs.SE (software-engineering preprints).
