If my data doesn't have an ID property, what alternative key options do I have?

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If your data doesn't have an ID property, you can consider using one or more of the following alternative key options:

1. Combination of properties: You can use a combination of properties that together uniquely identify a record. For example, if you have a dataset of students, you can use a combination of their name, date of birth, and home address to create a unique identifier for each student.

2. Sequential number: You can assign a unique, sequential number to each record. This can be done automatically by your database management system or by your own application code.

3. Hash key: You can generate a hash key for each record, which is a unique identifier created using an algorithm that converts the record's properties into a fixed-length string of characters.

4. UUID: You can use a Universally Unique Identifier (UUID), which is a 128-bit identifier that is guaranteed to be unique across time and space. This requires generating a random value for each record.

5. Natural key: You can use a natural key, which is a unique identifier that is already present in your data. For example, if you're working with a dataset of books, you can use the book's ISBN number as the unique identifier.