AWS - DynamoDB
Which AWS DynamoDB operation is used to retrieve a single item by its primary key?
Which AWS DynamoDB operation is used to retrieve a single item by its primary key?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify operation for single item retrieval
TheGetItemoperation retrieves a single item by its primary key.Step 2: Differentiate from other operations
Querycan retrieve multiple items by partition key,Putinserts or replaces, andScanreads all items.Final Answer:
GetItem -> Option CQuick Check:
GetItem = Retrieve single item by key [OK]
Quick Trick: GetItem fetches one item by key [OK]
Common Mistakes:
MISTAKES- Using Query for single item
- Confusing Put with GetItem
- Using Scan for single item
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