CSE594 in one slide

• Logical: E/R diagram?normalized relations

• Physical: files, buffering, and indexes

• Logical: Relational algebra and SQL

• Physical: join methods, optimization

• Logical and physical: DBA designs, tunes

• CC/R choices affect correctness, performance

• Object Databases extend, improve relations

  • … OODBMS, ORDBMS are converging?
  • … OQL, SQL3 are converging?

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