使用 C# 和 cosmos 客户端从 cosmos db 中删除文档

Question

我是 Cosmos DB 的新手，在通读 Microsoft 文档后我试图从 cosmos db 中删除记录。我试图尽可能地遵循这个例子。正在查找和读取记录，但我在尝试删除时运行遇到未找到错误。

集合已分区，我在示例中提到了分区键，但仍然导致错误。

    private async Task QueryItemsAsync()
    {
        var sqlQueryText = "SELECT * FROM c WHERE c.tenantId = '5c6cb2d77c1c2edc001b9007' and c.id = 'abae8abf-5836-464f-8129-1f0e83a1f639'";

        QueryDefinition queryDefinition = new QueryDefinition(sqlQueryText);
        FeedIterator<Order> queryResultSetIterator = this.container.GetItemQueryIterator<Order>(queryDefinition);

        List<Order> orders = new List<Order>();

        while (queryResultSetIterator.HasMoreResults)
        {
            FeedResponse<Order> currentResultSet = await queryResultSetIterator.ReadNextAsync();
            foreach (Order o in currentResultSet)
            {
                orders.Add(o);
                Console.WriteLine("\tRead {0}\n", o);       
            }
        }
    }         
    private async Task DeleteFamilyItemAsync()
    {
        var partitionKeyValue = "tenantId";
        var orderId = "abae8abf-5836-464f-8129-1f0e83a1f639";

        // Delete an item. Note we must provide the partition key value and id of the item to delete
        ItemResponse<Order> orderResponse = await this.container.DeleteItemAsync<Order>(orderId, new PartitionKey(partitionKeyValue));
        Console.WriteLine("Deleted Family [{0},{1}]\n", partitionKeyValue, orderId);
    }

如下所示，正在读取记录，因此可以找到它，但是当我尝试删除它时，它并没有被删除。阅读 {"Id":null,"patientId":null,"orchestrationId":null,"preOrderId":"88557ec1-dccb-4397-9ce4-20b6aeb1d636","cartId": "adc463ef-7f38-4fa8-8f37-e505db3a5134","confirmationNum":"QDQ-9244014-14708","cartConfirmationNum":"IBM-8622967-14079","countryCode":null,"type":"order", "cancelDate":空,"id":"abae8abf-5836-464f-8129-1f0e83a1f639"}

发生 NotFound 错误：CosmosRequestException；StatusCode=NotFound；SubStatusCode=0；ActivityId=6dd52d23-68c8-4e6d-b4ff-70cd2a6921cf；RequestCharge=1.24；Message=响应状态代码不表示成功：404 子状态：0 原因: ().; 演示结束，按任意键退出

Answer 1

问题出在您的 partitionKeyValue 上。您正在提供分区键定义而不是值。该值是实际租户 ID 而不是文本 tenantId.

您的删除代码应该如下所示：

private async Task DeleteFamilyItemAsync()
{
    var partitionKeyValue = "5c6cb2d77c1c2edc001b9007"; // <-- This is the change
    var orderId = "abae8abf-5836-464f-8129-1f0e83a1f639";

    // Delete an item. Note we must provide the partition key value and id of the item to delete
    ItemResponse<Order> orderResponse = await this.container.DeleteItemAsync<Order>(orderId, new PartitionKey(partitionKeyValue));
    Console.WriteLine("Deleted Family [{0},{1}]\n", partitionKeyValue, orderId);
}

使用 C# 和 cosmos 客户端从 cosmos db 中删除文档

deleting document from cosmos db using C# and cosmos client

c#

delete-row

azure-cosmosdb

azure-cosmosdb-sqlapi