DynamoDB - Access Patterns and Query Optimization
Which of the following is the correct syntax to create a DynamoDB table with a partition key named 'UserId'?
Which of the following is the correct syntax to create a DynamoDB table with a partition key named 'UserId'?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Check attribute definitions
Partition key must be defined with AttributeType S (string) or N (number). Here, UserId is string (S).Step 2: Verify key schema
Partition key uses KeyType HASH. aws dynamodb create-table --table-name Users --attribute-definitions AttributeName=UserId,AttributeType=S --key-schema AttributeName=UserId,KeyType=HASH --provisioned-throughput ReadCapacityUnits=5,WriteCapacityUnits=5 correctly uses HASH for UserId.Final Answer:
Correct syntax with string UserId as HASH key -> Option BQuick Check:
Partition key syntax = aws dynamodb create-table --table-name Users --attribute-definitions AttributeName=UserId,AttributeType=S --key-schema AttributeName=UserId,KeyType=HASH --provisioned-throughput ReadCapacityUnits=5,WriteCapacityUnits=5 [OK]
Quick Trick: Partition key uses KeyType HASH and correct AttributeType [OK]
Common Mistakes:
MISTAKES- Using KeyType RANGE for partition key
- Missing attribute definitions
- Wrong AttributeType for UserId
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