dynamodb-queries

问题 I am trying to create a dynamoDBMapper annotation for the below case. I have EmployeeLevelTrail which is a class of a Employee level record @DynamoDBTable(tableName = TABLE_NAME) public class EmployeeData { public final static String TABLE_NAME = “EmployeeDataRecord”; @DynamoDBAttribute(attributeName = “employeeID”) public String EmployeeID; @DynamoDBAttribute(attributeName = “EmployeeLevelDataRecords”) @DynamoDBTyped(DynamoDBMapperFieldModel.DynamoDBAttributeType.M) public EmployeeLevelTrail

问题 I am trying to create a dynamoDBMapper annotation for the below case. I have EmployeeLevelTrail which is a class of a Employee level record @DynamoDBTable(tableName = TABLE_NAME) public class EmployeeData { public final static String TABLE_NAME = “EmployeeDataRecord”; @DynamoDBAttribute(attributeName = “employeeID”) public String EmployeeID; @DynamoDBAttribute(attributeName = “EmployeeLevelDataRecords”) @DynamoDBTyped(DynamoDBMapperFieldModel.DynamoDBAttributeType.M) public EmployeeLevelTrail

问题 The use case: I have a bid table which holds the bid on Loades. One Load can have multiple Bids. The Bid status is new for every bid. Once the bid is accepted by the Admin(The person who put that Load up for bidding) then I need to change the status for that particular bid as "Accepted" and for other bids on the same Load the status should be "rejected". Table Definition: Bid_id(Which is unique for every record) and Load_id(multiple entries) is my primary and sort key respectively. How do I

问题 I've been going around and around this and it's just not clear what to do. I have a simple table where I want to make queries against several columns. As I understand it, that means creating a secondary index for each column there is to query against. I've defined the table -- using the Serverless framework serverless.yml -- and am getting a variety of strange error messages. The current serverless.yml definition is: resources: Resources: MessagesDynamoDBTable: Type: 'AWS::DynamoDB::Table'

问题 I've been going around and around this and it's just not clear what to do. I have a simple table where I want to make queries against several columns. As I understand it, that means creating a secondary index for each column there is to query against. I've defined the table -- using the Serverless framework serverless.yml -- and am getting a variety of strange error messages. The current serverless.yml definition is: resources: Resources: MessagesDynamoDBTable: Type: 'AWS::DynamoDB::Table'

问题 How to Query array of objects(workingDays) key containing only "Tue" in dynamoDb with Scan Operation,I have queried using filter Expression but i am getting no results. var queryData = { TableName: tableName, FilterExpression: "contains (workingDays, :dayVal)", ExpressionAttributeValues: { ":dayVal": { S:"Tue" } } }; console.log("getParams ==>", queryData) dynamodb.scan(queryData, function (err, details) { if (err) { console.log(err, err.stack); // an error occurred callback(err, null) } else

问题 I am trying to achieve an update operation using my API method to update the content of the table. I have following lambda code set up: def lambda_handler(event, context): param = event['queryStringParameters']['employeID'] name = event['queryStringParameters']['employeName'] dynamodb = boto3.resource('dynamodb', region_name="us-east-1") table = dynamodb.Table('api_demo_employe') response = table.update_item( Key = { 'employeID' : param } ) I need to figure out how can i set the

问题 I have table already and I want to add a new attribute to that table. I am trying to do that with the update_item functionality of dynamDB. use case: Bid table holds details on the bid of the product. The user accepts the bid, once the bid is accepted, have to add a few attributes to that record like the user information. Not sure if it is the right way or should I have a new table for this. pratition key is : Pickup, sort key is : DropOff A Demo example that I am trying currently currently

来源： https://stackoverflow.com/questions/64132338/how-to-achieve-sorting-by-any-attribute-of-an-item-in-dynamodb

来源： https://stackoverflow.com/questions/63283009/updateexpression-taking-dynamic-values-for-update-function-in-dynamodb-table-usi