CosmosClient.GetDatabaseQueryIterator Method
Definition
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.
Overloads
| GetDatabaseQueryIterator<T>(QueryDefinition, String, QueryRequestOptions) |
This method creates a query for databases under an Cosmos DB Account using a SQL statement with parameterized values. It returns a FeedIterator. For more information on preparing SQL statements with parameterized values, please see QueryDefinition. |
| GetDatabaseQueryIterator<T>(String, String, QueryRequestOptions) |
This method creates a query for databases under an Cosmos DB Account using a SQL statement. It returns a FeedIterator. |
GetDatabaseQueryIterator<T>(QueryDefinition, String, QueryRequestOptions)
- Source:
- CosmosClient.cs
This method creates a query for databases under an Cosmos DB Account 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 virtual Microsoft.Azure.Cosmos.FeedIterator<T> GetDatabaseQueryIterator<T> (Microsoft.Azure.Cosmos.QueryDefinition queryDefinition, string continuationToken = default, Microsoft.Azure.Cosmos.QueryRequestOptions requestOptions = default);abstract member GetDatabaseQueryIterator : Microsoft.Azure.Cosmos.QueryDefinition * string * Microsoft.Azure.Cosmos.QueryRequestOptions -> Microsoft.Azure.Cosmos.FeedIterator<'T>
override this.GetDatabaseQueryIterator : Microsoft.Azure.Cosmos.QueryDefinition * string * Microsoft.Azure.Cosmos.QueryRequestOptions -> Microsoft.Azure.Cosmos.FeedIterator<'T>Public Overridable Function GetDatabaseQueryIterator(Of T) (queryDefinition As QueryDefinition, Optional continuationToken As String = Nothing, Optional requestOptions As QueryRequestOptions = Nothing) As FeedIterator(Of T)Type Parameters
- T
Parameters
- queryDefinition
- QueryDefinition
The cosmos SQL query definition.
- continuationToken
- String
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 databases.
Examples
This create the type feed iterator for database with queryText as input,
QueryDefinition queryDefinition = new QueryDefinition("SELECT * FROM c where c.status like @status")
.WithParameter("@status", "start%");
using (FeedIterator<DatabaseProperties> feedIterator = this.users.GetDatabaseQueryIterator<DatabaseProperties>(queryDefinition))
{
while (feedIterator.HasMoreResults)
{
FeedResponse<DatabaseProperties> response = await feedIterator.ReadNextAsync();
foreach (var database in response)
{
Console.WriteLine(database);
}
}
}
Remarks
Refer to https://docs.microsoft.com/azure/cosmos-db/sql-query-getting-started for syntax and examples.
ReadAsync(RequestOptions, CancellationToken) is recommended for single database look-up.
Applies to
GetDatabaseQueryIterator<T>(String, String, QueryRequestOptions)
- Source:
- CosmosClient.cs
This method creates a query for databases under an Cosmos DB Account using a SQL statement. It returns a FeedIterator.
public virtual Microsoft.Azure.Cosmos.FeedIterator<T> GetDatabaseQueryIterator<T> (string queryText = default, string continuationToken = default, Microsoft.Azure.Cosmos.QueryRequestOptions requestOptions = default);abstract member GetDatabaseQueryIterator : string * string * Microsoft.Azure.Cosmos.QueryRequestOptions -> Microsoft.Azure.Cosmos.FeedIterator<'T>
override this.GetDatabaseQueryIterator : string * string * Microsoft.Azure.Cosmos.QueryRequestOptions -> Microsoft.Azure.Cosmos.FeedIterator<'T>Public Overridable Function GetDatabaseQueryIterator(Of T) (Optional queryText As String = Nothing, Optional continuationToken As String = Nothing, Optional requestOptions As QueryRequestOptions = Nothing) As FeedIterator(Of T)Type Parameters
- T
Parameters
- queryText
- String
The cosmos SQL query text.
- continuationToken
- String
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 databases.
Examples
This create the type feed iterator for database with queryText as input,
string queryText = "SELECT * FROM c where c.status like 'start%'";
using (FeedIterator<DatabaseProperties> feedIterator = this.users.GetDatabaseQueryIterator<DatabaseProperties>(queryText)
{
while (feedIterator.HasMoreResults)
{
FeedResponse<DatabaseProperties> response = await feedIterator.ReadNextAsync();
foreach (var database in response)
{
Console.WriteLine(database);
}
}
}
Remarks
Refer to https://docs.microsoft.com/azure/cosmos-db/sql-query-getting-started for syntax and examples.
ReadAsync(RequestOptions, CancellationToken) is recommended for single database look-up.
