本文為英文版的機器翻譯版本,如內容有任何歧義或不一致之處,概以英文版為準。
所以此《Amazon DynamoDB 開發人員指南》使用範例表來說明 DynamoDB 的各個層面。
資料表名稱 | 主索引鍵 |
---|---|
ProductCatalog |
簡單主索引鍵:
|
Forum |
簡單主索引鍵:
|
Thread |
複合主索引鍵:
|
Reply |
複合主索引鍵:
|
回覆資料表具有名為 PostedBy-Message-Index 的全域次要索引。此索引會加速對 Reply 資料表的兩個非索引鍵屬性的查詢。
索引名稱 | 主索引鍵 |
---|---|
PostedBy-訊息-索引 |
複合主索引鍵:
|
如需這些資料表的詳細資訊,請參閱 步驟 1:在 DynamoDB 中建立資料表 和 步驟 2:將資料寫入 DynamoDB 資料表。
範例資料檔案
下列各節顯示用於載入 ProductCatalog、論壇、執行緒和回覆資料表的範例資料檔案。
每個資料檔案會包含多個 PutRequest
元素,每個元素則會包含一個項目。這些PutRequest
元素是使用 AWS Command Line Interface (AWS CLI) 做為BatchWriteItem
操作的輸入。
ProductCatalog 範例資料
{
"ProductCatalog": [
{
"PutRequest": {
"Item": {
"Id": {
"N": "101"
},
"Title": {
"S": "Book 101 Title"
},
"ISBN": {
"S": "111-1111111111"
},
"Authors": {
"L": [
{
"S": "Author1"
}
]
},
"Price": {
"N": "2"
},
"Dimensions": {
"S": "8.5 x 11.0 x 0.5"
},
"PageCount": {
"N": "500"
},
"InPublication": {
"BOOL": true
},
"ProductCategory": {
"S": "Book"
}
}
}
},
{
"PutRequest": {
"Item": {
"Id": {
"N": "102"
},
"Title": {
"S": "Book 102 Title"
},
"ISBN": {
"S": "222-2222222222"
},
"Authors": {
"L": [
{
"S": "Author1"
},
{
"S": "Author2"
}
]
},
"Price": {
"N": "20"
},
"Dimensions": {
"S": "8.5 x 11.0 x 0.8"
},
"PageCount": {
"N": "600"
},
"InPublication": {
"BOOL": true
},
"ProductCategory": {
"S": "Book"
}
}
}
},
{
"PutRequest": {
"Item": {
"Id": {
"N": "103"
},
"Title": {
"S": "Book 103 Title"
},
"ISBN": {
"S": "333-3333333333"
},
"Authors": {
"L": [
{
"S": "Author1"
},
{
"S": "Author2"
}
]
},
"Price": {
"N": "2000"
},
"Dimensions": {
"S": "8.5 x 11.0 x 1.5"
},
"PageCount": {
"N": "600"
},
"InPublication": {
"BOOL": false
},
"ProductCategory": {
"S": "Book"
}
}
}
},
{
"PutRequest": {
"Item": {
"Id": {
"N": "201"
},
"Title": {
"S": "18-Bike-201"
},
"Description": {
"S": "201 Description"
},
"BicycleType": {
"S": "Road"
},
"Brand": {
"S": "Mountain A"
},
"Price": {
"N": "100"
},
"Color": {
"L": [
{
"S": "Red"
},
{
"S": "Black"
}
]
},
"ProductCategory": {
"S": "Bicycle"
}
}
}
},
{
"PutRequest": {
"Item": {
"Id": {
"N": "202"
},
"Title": {
"S": "21-Bike-202"
},
"Description": {
"S": "202 Description"
},
"BicycleType": {
"S": "Road"
},
"Brand": {
"S": "Brand-Company A"
},
"Price": {
"N": "200"
},
"Color": {
"L": [
{
"S": "Green"
},
{
"S": "Black"
}
]
},
"ProductCategory": {
"S": "Bicycle"
}
}
}
},
{
"PutRequest": {
"Item": {
"Id": {
"N": "203"
},
"Title": {
"S": "19-Bike-203"
},
"Description": {
"S": "203 Description"
},
"BicycleType": {
"S": "Road"
},
"Brand": {
"S": "Brand-Company B"
},
"Price": {
"N": "300"
},
"Color": {
"L": [
{
"S": "Red"
},
{
"S": "Green"
},
{
"S": "Black"
}
]
},
"ProductCategory": {
"S": "Bicycle"
}
}
}
},
{
"PutRequest": {
"Item": {
"Id": {
"N": "204"
},
"Title": {
"S": "18-Bike-204"
},
"Description": {
"S": "204 Description"
},
"BicycleType": {
"S": "Mountain"
},
"Brand": {
"S": "Brand-Company B"
},
"Price": {
"N": "400"
},
"Color": {
"L": [
{
"S": "Red"
}
]
},
"ProductCategory": {
"S": "Bicycle"
}
}
}
},
{
"PutRequest": {
"Item": {
"Id": {
"N": "205"
},
"Title": {
"S": "18-Bike-204"
},
"Description": {
"S": "205 Description"
},
"BicycleType": {
"S": "Hybrid"
},
"Brand": {
"S": "Brand-Company C"
},
"Price": {
"N": "500"
},
"Color": {
"L": [
{
"S": "Red"
},
{
"S": "Black"
}
]
},
"ProductCategory": {
"S": "Bicycle"
}
}
}
}
]
}
Forum 範例資料
{
"Forum": [
{
"PutRequest": {
"Item": {
"Name": {"S":"Amazon DynamoDB"},
"Category": {"S":"Amazon Web Services"},
"Threads": {"N":"2"},
"Messages": {"N":"4"},
"Views": {"N":"1000"}
}
}
},
{
"PutRequest": {
"Item": {
"Name": {"S":"Amazon S3"},
"Category": {"S":"Amazon Web Services"}
}
}
}
]
}
Thread 範例資料
{
"Thread": [
{
"PutRequest": {
"Item": {
"ForumName": {
"S": "Amazon DynamoDB"
},
"Subject": {
"S": "DynamoDB Thread 1"
},
"Message": {
"S": "DynamoDB thread 1 message"
},
"LastPostedBy": {
"S": "User A"
},
"LastPostedDateTime": {
"S": "2015-09-22T19:58:22.514Z"
},
"Views": {
"N": "0"
},
"Replies": {
"N": "0"
},
"Answered": {
"N": "0"
},
"Tags": {
"L": [
{
"S": "index"
},
{
"S": "primarykey"
},
{
"S": "table"
}
]
}
}
}
},
{
"PutRequest": {
"Item": {
"ForumName": {
"S": "Amazon DynamoDB"
},
"Subject": {
"S": "DynamoDB Thread 2"
},
"Message": {
"S": "DynamoDB thread 2 message"
},
"LastPostedBy": {
"S": "User A"
},
"LastPostedDateTime": {
"S": "2015-09-15T19:58:22.514Z"
},
"Views": {
"N": "3"
},
"Replies": {
"N": "0"
},
"Answered": {
"N": "0"
},
"Tags": {
"L": [
{
"S": "items"
},
{
"S": "attributes"
},
{
"S": "throughput"
}
]
}
}
}
},
{
"PutRequest": {
"Item": {
"ForumName": {
"S": "Amazon S3"
},
"Subject": {
"S": "S3 Thread 1"
},
"Message": {
"S": "S3 thread 1 message"
},
"LastPostedBy": {
"S": "User A"
},
"LastPostedDateTime": {
"S": "2015-09-29T19:58:22.514Z"
},
"Views": {
"N": "0"
},
"Replies": {
"N": "0"
},
"Answered": {
"N": "0"
},
"Tags": {
"L": [
{
"S": "largeobjects"
},
{
"S": "multipart upload"
}
]
}
}
}
}
]
}
Reply 範例資料
{
"Reply": [
{
"PutRequest": {
"Item": {
"Id": {
"S": "Amazon DynamoDB#DynamoDB Thread 1"
},
"ReplyDateTime": {
"S": "2015-09-15T19:58:22.947Z"
},
"Message": {
"S": "DynamoDB Thread 1 Reply 1 text"
},
"PostedBy": {
"S": "User A"
}
}
}
},
{
"PutRequest": {
"Item": {
"Id": {
"S": "Amazon DynamoDB#DynamoDB Thread 1"
},
"ReplyDateTime": {
"S": "2015-09-22T19:58:22.947Z"
},
"Message": {
"S": "DynamoDB Thread 1 Reply 2 text"
},
"PostedBy": {
"S": "User B"
}
}
}
},
{
"PutRequest": {
"Item": {
"Id": {
"S": "Amazon DynamoDB#DynamoDB Thread 2"
},
"ReplyDateTime": {
"S": "2015-09-29T19:58:22.947Z"
},
"Message": {
"S": "DynamoDB Thread 2 Reply 1 text"
},
"PostedBy": {
"S": "User A"
}
}
}
},
{
"PutRequest": {
"Item": {
"Id": {
"S": "Amazon DynamoDB#DynamoDB Thread 2"
},
"ReplyDateTime": {
"S": "2015-10-05T19:58:22.947Z"
},
"Message": {
"S": "DynamoDB Thread 2 Reply 2 text"
},
"PostedBy": {
"S": "User A"
}
}
}
}
]
}