AWS - DynamoDB
You want to store a list of phone numbers as an attribute in a DynamoDB item. Which attribute type should you use?
You want to store a list of phone numbers as an attribute in a DynamoDB item. Which attribute type should you use?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Identify attribute types for multiple values
DynamoDB supports List (L) type to store ordered collections of values.Step 2: Choose best type for multiple phone numbers
List type is best to store multiple phone numbers as separate elements.Final Answer:
List (L) type to hold multiple phone numbers -> Option CQuick Check:
Multiple values = List type [OK]
Quick Trick: Use List type for multiple values in one attribute [OK]
Common Mistakes:
- Using string with commas
- Using number type for multiple values
- Using map incorrectly
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