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Serverless Applications with Node.js: What are DynamoDB create-table command requirements?

 
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Dear Authors,

In connection with AWS Ecosystem, DynamoDB and NoSQL are embedded as simpler databases. The following example in book shows that table automatically specified with PRIMARY key only.




Other fields are omitted too. Order table (i.e. pizza-orders) not specified with pizza, address and order status fields;  Is it auto assignments when it was runtime?

Thank You


 
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Hello Noorul Hameed,

DynamoDB is actually set as a Database Table, so you are creating DynamoDB tables one by one, instead of having one monolithic database with hundreds of tables (like we had before). As your systems scale, having a monolithic database is a bigger problem than solving cross region data consistency and replication.

In this case when you're creating a single table with this call, we are intentionally omitting the attributes. You've guessed it right, a DynamoDB table can add new table attributes in runtime. There is no need to specify a schema from the start.

Thank you for asking!
 
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