使用 Azure.Data.Tables 中的 TableClient.Query 限制查询结果

Question

In the older API (WindowsAzure.Storage), there was the Take() method for this purpose, but it seems that has been removed in this newer API. I haven't been able to find a way to perform the same function, can someone provide an answer to this?

Answer 1

Please add linq to the usings:

using System.Linq;

MS Docs: Enumerable.Take Method

Namespace: System.Linq

Answer 2

You can use $filter , $top or $select to limit query results.

$filter Returns only tables or entities that satisfy the specified filter. Note that no more than 15 discrete comparisons are permitted within a $filter string.

$top Returns only the top n tables or entities from the set.

$select Returns the desired properties of an entity from the set.

To return the top n entities for any query, specify the $top query option. The following example returns the top 10 entities from a table named Customers:

Sample query –

https://myaccount.table.core.windows.net/Customers()?$top=10

Refer - https://docs.microsoft.com/en-us/rest/api/storageservices/querying-tables-and-entities#sample-query-expressions

Answer 3

The parameter you are looking for is maxPerPage in TableClient.Query .

From the documentation:

maxPerPage Nullable The maximum number of entities that will be returned per page. Note: This value does not limit the total number of results if the result is fully enumerated.