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如果在查詢/掃描後有訂購項目的方法,則通過閱讀Amazon DynamoDB指南我不理解。DynamoDB中的「Order by」使用參數
例如:
- 我的數據庫table--
TableName:"Projects",
Item:{
"projectOwner": "User1",
"projectName": "Project1",
"creationDate": "Wed Nov 20 2016",
"updateDate": "Wed Nov 29 2016",
}Item:{
"projectOwner": "User1",
"projectName": "Project2",
"creationDate": "Wed Nov 20 2016",
"updateDate": "Wed Nov 28 2016",
}Item:{
"projectOwner": "User1",
"projectName": "Project3",
"creationDate": "Wed Nov 20 2016",
"updateDate": "Wed Nov 30 2016",
}
所以我想掃描我的數據庫,並返回由 「updateDate」 下令所有項目。有沒有辦法使用dynamoDB params來實現這一點?
params = {
TableName: "Projects",
ProjectionExpression: "projectName",
KeyConditionExpression: "projectOwner = :userId",
ExpressionAttributeValues: {
":userId":userId
}
};