知識檢查

1.

應該使用哪一個程式碼區塊來建立用戶端，以便僅使用連接字串連線到 Azure Cosmos DB 帳戶？

string connectionString = "<cosmos-connection-string>";
using CosmosClient client = new(connectionString);

string connectionString = "<cosmos-connection-string>";
using CosmosClient client = new(connectionString, "");

string connectionString = "<cosmos-connection-string>";
using CosmosClient client = new();

2.

請考慮沒有任何資源的新 Azure Cosmos DB 帳戶。哪一個程式碼區塊會建立第一個伺服器端資源，該資源需要儲存一組容器？

using CosmosClient client = new(
    connectionString: cosmosConnectionString
);

Container container = await database.CreateContainerIfNotExistsAsync(
    "products",
    partitionKeyPath: "/department",
    throughput: 400
);

Database database = await client.CreateDatabaseIfNotExistsAsync(
    "adventureworks"
);

3.

項目已存在於 Azure Cosmos DB for NoSQL 帳戶中，其唯一識別碼為 04b3038c-b966-4a86-a1f3-5d1fa5c2a47c。下列哪一個程式碼區塊會將容器中的現有項目取代為新建立的項目，而沒有建立全新項目的風險。

Item item = new("04b3038c-b966-4a86-a1f3-5d1fa5c2a47c", "item-category", "item-name", 0, true);
container.UpsertItemAsync(item);

Item item = new("04b3038c-b966-4a86-a1f3-5d1fa5c2a47c", "item-category", "item-name", 0, true);
container.ReplaceItemAsync("04b3038c-b966-4a86-a1f3-5d1fa5c2a47c", item);

Item item = new("04b3038c-b966-4a86-a1f3-5d1fa5c2a47c", "item-category", "item-name", 0, true);
container.CreateItemAsync(item);

4.

以下是 Azure Cosmos DB for NoSQL 查詢: SELECT * FROM container c WHERE c.partitionKey == 'some-category' ORDER BY c.id。什麼是與此查詢相等的 Language-integrated Query (LINQ)？

using FeedIterator<Product> feed = container.GetItemLinqQueryable<Item>()
    .OrderBy(i => i.partitionKey)
    .ToFeedIterator();

using FeedIterator<Product> feed = container.GetItemLinqQueryable<Item>()
    .Where(i => i.id == "some-category")
    .ToFeedIterator();

using FeedIterator<Product> feed = container.GetItemLinqQueryable<Item>()
    .Where(i => i.partitionKey == "some-category")
    .OrderBy(i => i.id)
    .ToFeedIterator();

意見反應