Amazon AWS SDK Guide de l'utilisateur télécharger pdf (Page 57)

Topics

• Sample Data (p. 53)

• Get a Single Item by Using Expressions and the Item's Primary Key (p. 56)

• Get Multiple Items by Using Expressions and the Table's Primary Key (p. 57)

• Get Multiple Items by Using Expressions and Other Item Attributes (p. 58)

• Print an Item (p. 58)

• Create or Replace an Item by Using Expressions (p. 60)

• Update an Item by Using Expressions (p. 61)

• Delete an Item by Using Expressions (p. 62)

• Additional Resources (p. 63)

Sample Data

The code examples in this topic rely on the following two example items in a DynamoDB table named

ProductCatalog. These items describe information about product entries in a fictitious bicycle store

catalog. These items are based on the example that is provided in Case Study: A ProductCatalog Item.

The data type descriptors such as BOOL, L, M, N, NS, S, and SS correspond to those in the JSON Data

Format.

{

"Id": {

"N": "205"

"Title": {

"S": "20-Bicycle 205"

"Description": {

"S": "205 description"

"BicycleType": {

"S": "Hybrid"

"Brand": {

"S": "Brand-Company C"

"Price": {

"N": "500"

"Gender": {

"S": "B"

"Color": {

"SS": [

"Red",

"Black"

]

"ProductCategory": {

"S": "Bike"

"InStock": {

"BOOL": true

"QuantityOnHand": {

Version v2.0.0

AWS SDK for .NET Developer Guide

Using Expressions with DynamoDB

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Amazon AWS SDK Guide de l'utilisateur Page 57

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