What are the limitations of data types in Rails?
In Rails, data types have specific limitations based on the database being used. For example, string types can only hold a certain number of characters, and integer types have a maximum value.
Can you give me an example of a limitation for strings?
Sure! In PostgreSQL, the default string type is 'text', which can hold up to 1 GB of data, but if you use 'varchar', you can limit it to a specific number of characters, like 255.
What happens if I exceed the limit?
If you exceed the limit, Rails will raise an error when you try to save the record, indicating that the value is too long for the column.
Are there any workarounds for these limitations?
Yes, you can use text fields for larger data or consider using JSONB columns for more complex data structures.
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