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如果在查询/扫描后有订购项目的方法,则通过阅读Amazon DynamoDB指南我不理解。DynamoDB中的“Order by”使用参数
例如:
- 我的数据库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",
}
所以我想扫描我的数据库,并返回由 “updateDate” 下令所有项目。有没有办法使用dynamoDB params来实现这一点?
params = {
TableName: "Projects",
ProjectionExpression: "projectName",
KeyConditionExpression: "projectOwner = :userId",
ExpressionAttributeValues: {
":userId":userId
}
};