Counting ALL rows in Dynamics CRM Online web api (ODATA)

问题

Is it possible to count all rows in a given entity, bypassing the 5000 row limit and bypassing the pagesize limit?

I do not want to return more than 5000 rows in one request, but only want the count of all the rows in that given entity.

According to Microsoft, you cannot do it in the request URI:

The count value does not represent the total number of entities in the system. 

It is limited by the maximum number of entities that can be returned.

I have tried this:

GET [Organization URI]/api/data/v9.0/accounts/?$count=true

Any other way?

回答1:

Use function RetrieveTotalRecordCount:

If you want to retrieve the total number of records for an entity beyond 5000, use the RetrieveTotalRecordCount Function.

Your query will look like this:

https://<your api url>/RetrieveTotalRecordCount(EntityNames=['accounts'])

回答2:

The XrmToolBox has a counting tool that can help with this .

Also, we here at MetaTools Inc. have just released an online tool called AggX that runs aggregates on any number of records in a Dynamics 365 Online org, and it's free during the beta release.

回答3:

Update:

Latest release v9.1 has the direct function to achieve this - RetrieveTotalRecordCount

————————————————————————————

Unfortunately we have to pick one of this route to identify the count of records based on expected result within the limits.

1. If less than 5000, use this: (You already tried this)

GET [Organization URI]/api/data/v9.0/accounts/?$count=true

2. Less than 50,000, use this:

GET [Organization URI]/api/data/v8.2/accounts?fetchXml=[URI-encoded FetchXML query]

Exceeding limit will get error: AggregateQueryRecordLimit exceeded. Cannot perform this operation.

Sample query:

<fetch version="1.0" mapping="logical" aggregate="true">
  <entity name="account">
    <attribute name="accountid" aggregate="count" alias="count" />
  </entity>
</fetch>

Do a browser address bar test with URI:

[Organization URI]/api/data/v8.2/accounts?fetchXml=%3Cfetch%20version=%221.0%22%20mapping=%22logical%22%20aggregate=%22true%22%3E%3Centity%20name=%22account%22%3E%3Cattribute%20name=%22accountid%22%20aggregate=%22count%22%20alias=%22count%22%20/%3E%3C/entity%3E%3C/fetch%3E

The only way to get around this is to partition the dataset based on some property so that you get smaller subsets of records to aggregate individually.

3. The last resort is iterating through @odata.nextLink and counting the records in each page with a code variable (code example to query the next page)

回答4:

You may try OData's $inlinecount query option. Adding only $inlinecount=allpages in the querystring will return all records, so add $top=1 in the URI to fetch only one record along with count of all records.

You URL will look like /accounts/?$inlinecount=allpages&$top=1

For example, click here and the response XML will have the count as <m:count>11</m:count>