# Relationships in Rell explained · Learn Chromia

> Model related entities in Rell and query across them to link your dapp's data.

Source: https://chromia.com/learn/relationships-course/

[Learn](https://chromia.com/learn/)Relationships in Rell explained

# Relationships in Rell explained

Model related entities in Rell and query across them to link your dapp's data.

6 lessons

[Start course](https://chromia.com/learn/relationships-course/introduction/)

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1. [01Relationships in Rell explained](https://chromia.com/learn/relationships-course/introduction/)
2. [02Creating Records](https://chromia.com/learn/relationships-course/joins/)
3. [03Many-to-many relationships](https://chromia.com/learn/relationships-course/many-to-many/)
4. [04One-to-many relationships](https://chromia.com/learn/relationships-course/one-to-many/)
5. [05One-to-one relationship](https://chromia.com/learn/relationships-course/one-to-one/)
6. [06Set up your project](https://chromia.com/learn/relationships-course/setup/)