aggregation

问题 At present that dax calculation is a simple SUM, but I need to default to the last non-blank value for the GrandTotal: For example, instead of stating 167, it should not 9: 回答1: Similar to the other question you asked, you can use HASONEVALUE to change the behavior of the Grand Total. If the column you are summing is named Table1[Value] then the measure you want will look something like this: LastNonBlankValue = VAR LastNonBlankDate = CALCULATE(MAX(DimDate[Date]), Table1[Value] > 0) RETURN IF

问题 I have following ElasticSearch Mapping. Mapping: "cid": { "type": "long" }, "crankings": { "type": "nested", "properties": { "rank": { "type": "long" }, "name": { "type": "string", "fields": { "raw": { "type": "string", "index": "not_analyzed" } } } } } I am trying to do aggregation on the nested field (crankings.rank.raw) and cardinality on cid . I am forming the below aggregation query. Query: { "size": 0, "aggregations": { "crankings": { "nested": { "path": "crankings" }, "aggregations": {

问题 I've tried to add a CIBC account using the API explorer interface. I've got back a 401 response with response body specifying a challenge. However, in the response header, there is only "content-length", no challenge session id or challenge node id as expected. Did I miss something? 回答1: It seems, there is an UI bug in the CAD ApiExplorer. It is not returning the challange nodeId and sessionId. It should be fixed soon. Ideally this 'DiscoverAndAddAccounts' API call returns a response like

问题 This query works as intended, but it's just really slow. Does anyone here have recommendations to improve performance? I essentially just creating a temp table to store all the table and column names, and cycling through them via a WHILE statement, to create dynamic inserts into another table with the details I want. My latest run took about 21 minutes, which isn't entirely terrible (considering the task), but I'd love to get some input on how/where it can be fine tuned. USE <DATABASE>; IF

问题 This question already has answers here : MongoDB SELECT COUNT GROUP BY (7 answers) Closed 8 months ago . I am performing an aggregation query.My requirement is that I have docs in following format: { "name":"a","age":20}, { "name":"b","age":23}, { "name":"a","age":26} I need to sum the ages of all names who have "a" in their name field. I am doing the following but it gives me an error that "The field 'name' must be an accumulator object": db.collection('students').aggregate({ $group: {"name"

问题 suppose I've got a collection of people defined like this in JSON. { "NOM": "Doe", "PRENOM": "John", "EMAIL": "john.doe@email.me", "VILLE": "Somewhere", "LIKE1": "Lolcats", "LIKE2": "Loldogs", "LIKE3": "Lolwut", "HATE1": "Bad stuff", "HATE2": "Bad bad stuff" } Is it possible to write a JsonDeserializer that will aggregate and transform LIKE* and HATE* fields into a collection of Liking, set as a property of Person? (Note that there are only LIKE1, LIKE2, LIKE3, HATE1, HATE2.) The final result

问题 In many ddd examples we have a simple: Order (aggregate root [AR]) and OrderLine (aggregate member [AM]) + Invoice (aggregate root [AR]) and InvoiceLine (aggregate member [AM]) In that examples we issue an invoice on order so it is direct reference from one AR (Invoice) to another (Order) which is clearly correct. However, in my case things are more complicated: We issue an Invoice on many OrderLines from different Orders. So on one Invoice, we have: InvoiceLine #1 referencing to OrderLine #1

问题 We have a stripped down Connect class which instantiates the addin's core from an other assembly. Our architectural design is to keep the UI and business logic separated from the loading module (= Connect class), but the restrictions of a shared Addin make us troubles. what we did in Connect.cs: [GuidAttribute("XYZ"), ProgId("XYZ")] public class Connect : Object, IDTExtensibility2, ICustomQueryInterface { ... CustomQueryInterfaceResult ICustomQueryInterface.GetInterface(ref Guid iid, out

问题 Using PostgreSQL I need to be able to aggregate data, as the title suggests, in 24 hour periods but from noon to noon. The data is collected every 5 minutes over a period of several weeks and I want to average the readings over 24 hour periods from 12:00 noon of first day to 12:00 noon of the next day until the end of the data. For a more standard midnight to midnight grouping I can use the example below, which works just fine, but I can't see work out how to adapt this to the noon-noon time

问题 In the below diagram, the class "Copy" and class "Book" are showing an aggregation (Book has a Copy). All other classes are sub classes of class "Copy". Now, imagine there is a Member class, which has to access the sub classes "Lending" and "Borrow" of class "Copy". The only thing that ' Member ' class should know is "accessionNumber". If we think of this in terms of code, my " Book " class contains an array of " Copy ". How can I know the accessionNumber of a particular book? Lets say I need