Is there a way to store comma separated ids on a child node in Firebase and filter data similar to using the IN clause in SQL?
If so, I would appreciate suggestions for possible solutions.
Is there a way to store comma separated ids on a child node in Firebase and filter data similar to using the IN clause in SQL?
If so, I would appreciate suggestions for possible solutions.
Unlike SQL's IN clause, Firebase Realtime Database does not have a similar functionality. It also lacks the capability to search for substrings within values. This means that the data model you are considering may not support the specific use-case you are aiming for. In typical NoSQL fashion, the key is to choose a data model that does cater to your needs.
If your structure involves associating a child node with multiple categories, a recommended approach is outlined in my response here: Firebase query if child of child contains a value
In scenarios like this, Cloud Firestore database could be a better option due to its enhanced querying capabilities. Recently, it introduced a feature to efficiently check if an array contains a particular value (read more here / watch video). If you are at the initial stages of your project, consider if Firestore aligns better with your requirements.
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