Datasets:

trl-lab
/

schemapile

SchemaPile is a collection of database schemas extracted from various sources, normalized for consistency and ease of use in machine learning workflows. Each record contains metadata (INFO), licensing information, permissiveness, and a list of tables with detailed column specifications.

Schema

INFO:
- ID: Unique identifier (from filename prefix)
- FILENAME: Original filename
- Additional metadata fields
LICENSE: License string (if available)
PERMISSIVE: Boolean indicating permissive license
TABLES: List of tables, each with:
- TABLE_NAME: Name of the table
- COLUMNS: List of columns, each with:
  - NAME, TYPE, NULLABLE, UNIQUE, DEFAULT, CHECKS, IS_PRIMARY, IS_INDEX, VALUES
- PRIMARY_KEYS, FOREIGN_KEYS, CHECKS, INDEXES

Citation

If you use SchemaPile in your research, please cite:

@article{dohmen2024schemapile,
  title={Schemapile: A large collection of relational database schemas},
  author={D{"o}hmen, Till and Geacu, Radu and Hulsebos, Madelon and Schelter, Sebastian},
  journal={Proceedings of the ACM on Management of Data},
  volume={2},
  number={3},
  pages={1--25},
  year={2024},
  publisher={ACM New York, NY, USA}

Read the paper

Website

For more information, visit the SchemaPile website.

License

See individual record LICENSE fields for details. The PERMISSIVE flag indicates whether the schema is under a permissive license.