# Data base

- [Data Structures](/data/data-structures.md): This is the fundamental part of any app 🏰
- [System Structures](/data/data-structures/system-structures.md)
- [Data Types](/data/data-types.md)
- [Markdown Cheat Sheet](/data/data-types/markdown-cheatsheet.md)
- [Indexing Fields](/data/data-types/indexing-of-the-fields.md)
- [Formatting Date/Time](/data/data-types/formatting-date-time-data.md)
- [Directual Query Language (DQL)](/data/directual-query-language-dql.md): Use advanced search and filtering 🔎
- [Import and Export](/data/import-and-export.md): From Directual to XLS and back
- [Import API](/data/import-and-export/import-api.md)
- [File Storage](/data/file-storage.md): Store all your files 📦
- [API for File Storage](/data/file-storage/api-for-file-storage.md)