When working with Spring Data and databases, it's sometimes necessary to make certain fields optional to improve performance and reduce overhead. This guide explores various techniques for achieving this, including projections, DTOs, @SqlResultSetMapping, and using Object or Tuple for native queries. Examples and tests demonstrate how to selectively fetch only the necessary fields from a table.
Table of contents
1. Overview2. Why Optional Fields?3. Example Setup4. Use a Projection5. Use a DTO6. Use @SqlResultSetMapping7. Use Object or Tuple8. ConclusionSort: