# One-to-many relation data implementation

**URL:** <https://forum.fuel.network/t/one-to-many-relation-data-implementation/2884>\
**Category:** Sway\
**Tags:** faqs\
**Created:** [July 13, 2023, 8:15am UTC](https://forum.fuel.network/t/one-to-many-relation-data-implementation/2884 "2023-07-13T08:15:01Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![timotejGerzelj](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.fuel.network/timotejgerzelj/32/1553_2.png) [@timotejGerzelj](https://forum.fuel.network/u/timotejGerzelj)\
**Post date:** [July 13, 2023, 4:24pm UTC](https://forum.fuel.network/t/one-to-many-relation-data-implementation/2884/3 "2023-07-13T16:24:48Z")

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Hi @calldelegation thanks again for a response! The reason I thought this type of data-structure is not possible is because of this [post here](https://forum.fuel.network/t/no-method-named-push-found-for-type-storagevec-u64/2838) since I was receiving the same error. Could you show me how to update the StorageVec in StorageMap in this case if you dont mind?

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