Container.GetItemQueryStreamIterator Method
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
GetItemQueryStreamIterator(QueryDefinition, String, QueryRequestOptions) |
This method creates a query for items under a container in an Azure Cosmos database using a SQL statement with parameterized values. It returns a FeedIterator. For more information on preparing SQL statements with parameterized values, please see QueryDefinition. |
GetItemQueryStreamIterator(String, String, QueryRequestOptions) |
This method creates a query for items under a container in an Azure Cosmos database using a SQL statement. It returns a FeedIterator. |
GetItemQueryStreamIterator(FeedRange, QueryDefinition, String, QueryRequestOptions) |
This method creates a query for items under a container in an Azure Cosmos database using a SQL statement with parameterized values. It returns a FeedIterator. For more information on preparing SQL statements with parameterized values, please see QueryDefinition. |
- Source:
- Container.cs
This method creates a query for items under a container in an Azure Cosmos database using a SQL statement with parameterized values. It returns a FeedIterator. For more information on preparing SQL statements with parameterized values, please see QueryDefinition.
public abstract Microsoft.Azure.Cosmos.FeedIterator GetItemQueryStreamIterator (Microsoft.Azure.Cosmos.QueryDefinition queryDefinition, string continuationToken = default, Microsoft.Azure.Cosmos.QueryRequestOptions requestOptions = default);
abstract member GetItemQueryStreamIterator : Microsoft.Azure.Cosmos.QueryDefinition * string * Microsoft.Azure.Cosmos.QueryRequestOptions -> Microsoft.Azure.Cosmos.FeedIterator
Public MustOverride Function GetItemQueryStreamIterator (queryDefinition As QueryDefinition, Optional continuationToken As String = Nothing, Optional requestOptions As QueryRequestOptions = Nothing) As FeedIterator
Parameters
- queryDefinition
- QueryDefinition
The Cosmos SQL query definition.
- continuationToken
- String
(Optional) The continuation token in the Azure Cosmos DB service.
- requestOptions
- QueryRequestOptions
(Optional) The options for the item query request.
Returns
An iterator to go through the items.
Examples
Create a query to get all the ToDoActivity that have a cost greater than 9000 for the specified partition
public class ToDoActivity{
public string id {get; set;}
public string status {get; set;}
public int cost {get; set;}
}
QueryDefinition queryDefinition = new QueryDefinition("select * from ToDos t where t.cost > @expensive")
.WithParameter("@expensive", 9000);
using (FeedIterator feedIterator = this.Container.GetItemQueryStreamIterator(
queryDefinition,
null,
new QueryRequestOptions() { PartitionKey = new PartitionKey("Error")}))
{
while (feedIterator.HasMoreResults)
{
using (ResponseMessage response = await feedIterator.ReadNextAsync())
{
using (StreamReader sr = new StreamReader(response.Content))
using (JsonTextReader jtr = new JsonTextReader(sr))
{
JObject result = JObject.Load(jtr);
}
}
}
}
Applies to
- Source:
- Container.cs
This method creates a query for items under a container in an Azure Cosmos database using a SQL statement. It returns a FeedIterator.
public abstract Microsoft.Azure.Cosmos.FeedIterator GetItemQueryStreamIterator (string queryText = default, string continuationToken = default, Microsoft.Azure.Cosmos.QueryRequestOptions requestOptions = default);
abstract member GetItemQueryStreamIterator : string * string * Microsoft.Azure.Cosmos.QueryRequestOptions -> Microsoft.Azure.Cosmos.FeedIterator
Public MustOverride Function GetItemQueryStreamIterator (Optional queryText As String = Nothing, Optional continuationToken As String = Nothing, Optional requestOptions As QueryRequestOptions = Nothing) As FeedIterator
Parameters
- queryText
- String
The Cosmos SQL query text.
- continuationToken
- String
(Optional) The continuation token in the Azure Cosmos DB service.
- requestOptions
- QueryRequestOptions
(Optional) The options for the item query request.
Returns
An iterator to go through the items.
Examples
- Create a query to get all the ToDoActivity that have a cost greater than 9000 for the specified partition
public class ToDoActivity{
public string id {get; set;}
public string status {get; set;}
public int cost {get; set;}
}
using (FeedIterator feedIterator = this.Container.GetItemQueryStreamIterator(
"select * from ToDos t where t.cost > 9000",
null,
new QueryRequestOptions() { PartitionKey = new PartitionKey("Error")}))
{
while (feedIterator.HasMoreResults)
{
using (ResponseMessage response = await feedIterator.ReadNextAsync())
{
using (StreamReader sr = new StreamReader(response.Content))
using (JsonTextReader jtr = new JsonTextReader(sr))
{
JObject result = JObject.Load(jtr);
}
}
}
}
- Creates a FeedIterator to get all the ToDoActivity.
public class ToDoActivity{
public string id {get; set;}
public string status {get; set;}
public int cost {get; set;}
}
using (FeedIterator feedIterator = this.Container.GetItemQueryStreamIterator(
null,
null,
new QueryRequestOptions() { PartitionKey = new PartitionKey("Error")}))
{
while (feedIterator.HasMoreResults)
{
using (ResponseMessage response = await feedIterator.ReadNextAsync())
{
using (StreamReader sr = new StreamReader(response.Content))
using (JsonTextReader jtr = new JsonTextReader(sr))
{
JObject result = JObject.Load(jtr);
}
}
}
}
Remarks
Query as a stream only supports single partition queries
Applies to
- Source:
- Container.cs
This method creates a query for items under a container in an Azure Cosmos database using a SQL statement with parameterized values. It returns a FeedIterator. For more information on preparing SQL statements with parameterized values, please see QueryDefinition.
public abstract Microsoft.Azure.Cosmos.FeedIterator GetItemQueryStreamIterator (Microsoft.Azure.Cosmos.FeedRange feedRange, Microsoft.Azure.Cosmos.QueryDefinition queryDefinition, string continuationToken, Microsoft.Azure.Cosmos.QueryRequestOptions requestOptions = default);
abstract member GetItemQueryStreamIterator : Microsoft.Azure.Cosmos.FeedRange * Microsoft.Azure.Cosmos.QueryDefinition * string * Microsoft.Azure.Cosmos.QueryRequestOptions -> Microsoft.Azure.Cosmos.FeedIterator
Public MustOverride Function GetItemQueryStreamIterator (feedRange As FeedRange, queryDefinition As QueryDefinition, continuationToken As String, Optional requestOptions As QueryRequestOptions = Nothing) As FeedIterator
Parameters
- feedRange
- FeedRange
A FeedRange obtained from GetFeedRangesAsync(CancellationToken)
- queryDefinition
- QueryDefinition
The Cosmos SQL query definition.
- continuationToken
- String
(Optional) The continuation token in the Azure Cosmos DB service.
- requestOptions
- QueryRequestOptions
(Optional) The options for the item query request.
Returns
An iterator to go through the items.
Examples
Create a query to get all the ToDoActivity that have a cost greater than 9000 for the specified partition
public class ToDoActivity{
public string id {get; set;}
public string status {get; set;}
public int cost {get; set;}
}
IReadOnlyList<FeedRange> feedRanges = await this.Container.GetFeedRangesAsync();
// Distribute feedRanges across multiple compute units and pass each one to a different iterator
QueryDefinition queryDefinition = new QueryDefinition("select * from ToDos t where t.cost > @expensive")
.WithParameter("@expensive", 9000);
using (FeedIterator feedIterator = this.Container.GetItemQueryStreamIterator(
feedRanges[0],
queryDefinition,
null,
new QueryRequestOptions() { }))
{
while (feedIterator.HasMoreResults)
{
using (ResponseMessage response = await feedIterator.ReadNextAsync())
{
using (StreamReader sr = new StreamReader(response.Content))
using (JsonTextReader jtr = new JsonTextReader(sr))
{
JObject result = JObject.Load(jtr);
}
}
}
}
Remarks
Query as a stream only supports single partition queries
Applies to
Azure SDK for .NET feedback
Azure SDK for .NET is an open source project. Select a link to provide feedback: