从Azure表存储中获取所有记录 | 从Azure表存储中获取所有记录

本文介绍了从Azure表存储中获取所有记录的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

使用此代码块

try
{
    StorageCredentials creds = new StorageCredentials(accountName, accountKey);
    CloudStorageAccount account = new CloudStorageAccount(creds, useHttps: true);

    CloudTableClient client = account.CreateCloudTableClient();
    CloudTable table = client.GetTableReference("serviceAlerts");

    TableOperation retrieveOperation = TableOperation.Retrieve<ServiceAlertsEntity>("ServiceAlerts", "b9ccd839-dd99-4358-b90f-46781b87f933");

    TableResult query = table.Execute(retrieveOperation);

    if (query.Result != null)
    {
        outline = outline + ((ServiceAlertsEntity) query.Result).alertMessage + " * ";
    }
    else
    {
        Console.WriteLine("No Alerts");
    }
}
catch (Exception ex)
{
    Console.WriteLine(ex);
}

我能够使用检索中提到的分区和行键来检索单个记录.

I am able to retrieve the single record with the partition and rowkey mentioned in the retrieve.

有没有一种方法可以获取存储在ServiceAlerts分区中的所有记录?

Is there a way I can get all the records that are stored in the partition of ServiceAlerts?

我尝试为第二个参数使用通配符(*)

I have tried a wildcard (*) for the second parameter

TableOperation retrieveOperation = TableOperation.Retrieve<ServiceAlertsEntity>(
      "ServiceAlerts","b9ccd839-dd99-4358-b90f-46781b87f933");

但它不会返回任何内容.

but it does not return anything.

推荐答案

您需要指定一个TableQuery，这将为您提供所有实体，或者您可以指定TableQuery.GenerateFilterCondition来过滤行.

You need to specify a TableQuery, this will give you all entities or you can specify a TableQuery.GenerateFilterCondition to filter the rows.

TableQuery<ServiceAlertsEntity> query = new TableQuery<ServiceAlertsEntity>();

foreach (ServiceAlertsEntity entity in table.ExecuteQuery(query))
{
    Console.WriteLine("{0}, {1}\t{2}\t{3}", entity.PartitionKey, entity.RowKey,
                        entity.Field1, entity.Field2);
}

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