Container.GetItemQueryStreamIterator Method
Definition
Important
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Overloads
| 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. |
GetItemQueryStreamIterator(QueryDefinition, String, QueryRequestOptions)
- 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.FeedIteratorPublic MustOverride Function GetItemQueryStreamIterator (queryDefinition As QueryDefinition, Optional continuationToken As String = Nothing, Optional requestOptions As QueryRequestOptions = Nothing) As FeedIteratorParameters
- 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
GetItemQueryStreamIterator(String, String, QueryRequestOptions)
- 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.FeedIteratorPublic MustOverride Function GetItemQueryStreamIterator (Optional queryText As String = Nothing, Optional continuationToken As String = Nothing, Optional requestOptions As QueryRequestOptions = Nothing) As FeedIteratorParameters
- 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
GetItemQueryStreamIterator(FeedRange, QueryDefinition, String, QueryRequestOptions)
- 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.FeedIteratorPublic MustOverride Function GetItemQueryStreamIterator (feedRange As FeedRange, queryDefinition As QueryDefinition, continuationToken As String, Optional requestOptions As QueryRequestOptions = Nothing) As FeedIteratorParameters
- 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
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