DynamoDB · question
Question 2 of 38
What are the main data types supported by DynamoDB?
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DynamoDB has three kinds of data types: scalar, document and set types. The low-level API names each with a short descriptor.
Scalar types hold one value:
- String,
S
- Number,
N
- Binary,
B
- Boolean,
BOOL
- Null,
NULL
Document types nest other values:
- List,
L, an ordered collection of values of any type
- Map,
M, an unordered collection of key-value pairs
Set types hold unique values of one type:
- String Set,
SS
- Number Set,
NS
- Binary Set,
BS
Key attributes must be String, Number or Binary. There is no date type, so dates go in as ISO strings or epoch numbers.
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