Can we have our own schema in Dynamo DB ?

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I want to have a fixed schema in DynamoDB, even though it's a NoSQL database. I want to define specific column names beforehand so that whenever I add data to the database, the column names will be visible. How can I achieve this?

asked a year ago574 views
2 Answers
4
Accepted Answer

Unfortunately DynamoDB does not provide out of the box capability to define a strict schema. You must impose schema validation on the client side, ensuring users add the desired fields for every mutation.

As you mention, DynamoDB is a NoSQL schemaless database, which means you must only define the keys up-front. Your application code would be responsible for ensuring all the items follow a strict schema, and can do so by setting empty values for those attributes.

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EXPERT
answered a year ago
  • Is there an easy to integrate readily available low or no code way to put a simple frontend in AWS using I AM authentication allowing authorised users to fill a form that calls a lambda function?

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Yes, you can have null values for attributes with some qualifications around indexes. See: Amazon DynamoDB now supports empty values for non-key String and Binary attributes in DynamoDB tables.

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kentrad
answered a year ago

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