DocumentClient.CreateDatabaseQuery Method
Definition
Important
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Overloads
| CreateDatabaseQuery(FeedOptions) |
Overloaded. This method creates a query for database resources under an account in the Azure Cosmos DB service. It returns An IOrderedQueryable{Database}. |
| CreateDatabaseQuery(SqlQuerySpec, FeedOptions) |
Overloaded. This method creates a query for database resources under an Azure Cosmos DB database account by using a SQL statement with parameterized values. It returns an IQueryable{dynamic}. For more information on preparing SQL statements with parameterized values, please see SqlQuerySpec. |
| CreateDatabaseQuery(String, FeedOptions) |
Overloaded. This method creates a query for database resources under an Azure Cosmos DB database account by using a SQL statement. It returns an IQueryable{dynamic}. |
CreateDatabaseQuery(FeedOptions)
Overloaded. This method creates a query for database resources under an account in the Azure Cosmos DB service. It returns An IOrderedQueryable{Database}.
public System.Linq.IOrderedQueryable<Microsoft.Azure.Documents.Database> CreateDatabaseQuery (Microsoft.Azure.Documents.Client.FeedOptions feedOptions = default);abstract member CreateDatabaseQuery : Microsoft.Azure.Documents.Client.FeedOptions -> System.Linq.IOrderedQueryable<Microsoft.Azure.Documents.Database>
override this.CreateDatabaseQuery : Microsoft.Azure.Documents.Client.FeedOptions -> System.Linq.IOrderedQueryable<Microsoft.Azure.Documents.Database>Public Function CreateDatabaseQuery (Optional feedOptions As FeedOptions = Nothing) As IOrderedQueryable(Of Database)Parameters
- feedOptions
- FeedOptions
The options for processing the query result feed. For details, see FeedOptions
Returns
An IOrderedQueryable{Database} that can evaluate the query with the provided SQL statement.
Implements
Examples
This example below queries for databases by id.
Database database = client.CreateDatabaseQuery().Where(d => d.Id == "mydb").AsEnumerable().FirstOrDefault();
Remarks
Refer to https://docs.microsoft.com/azure/cosmos-db/sql-query-getting-started/ for syntax and examples. ReadDatabaseAsync(String, RequestOptions) is recommended for single database look-up.
See also
Applies to
CreateDatabaseQuery(SqlQuerySpec, FeedOptions)
Overloaded. This method creates a query for database resources under an Azure Cosmos DB database account by using a SQL statement with parameterized values. It returns an IQueryable{dynamic}. For more information on preparing SQL statements with parameterized values, please see SqlQuerySpec.
public System.Linq.IQueryable<dynamic> CreateDatabaseQuery (Microsoft.Azure.Documents.SqlQuerySpec querySpec, Microsoft.Azure.Documents.Client.FeedOptions feedOptions = default);abstract member CreateDatabaseQuery : Microsoft.Azure.Documents.SqlQuerySpec * Microsoft.Azure.Documents.Client.FeedOptions -> System.Linq.IQueryable<obj>
override this.CreateDatabaseQuery : Microsoft.Azure.Documents.SqlQuerySpec * Microsoft.Azure.Documents.Client.FeedOptions -> System.Linq.IQueryable<obj>Public Function CreateDatabaseQuery (querySpec As SqlQuerySpec, Optional feedOptions As FeedOptions = Nothing) As IQueryable(Of Object)Parameters
- querySpec
- SqlQuerySpec
The SqlQuerySpec instance containing the SQL expression.
- feedOptions
- FeedOptions
The options for processing the query result feed. For details, see FeedOptions
Returns
An IQueryable{dynamic} that can evaluate the query with the provided SQL statement.
Implements
Examples
This example below queries for databases by id.
var query = new SqlQuerySpec("SELECT * FROM dbs d WHERE d.id = @id",
new SqlParameterCollection(new SqlParameter[] { new SqlParameter { Name = "@id", Value = "mydb" }}));
dynamic database = client.CreateDatabaseQuery<dynamic>(query).AsEnumerable().FirstOrDefault();
Remarks
Refer to https://docs.microsoft.com/azure/cosmos-db/sql-query-getting-started/ for syntax and examples.
ReadDatabaseAsync(Uri, RequestOptions) is recommended for single database look-up.
See also
Applies to
CreateDatabaseQuery(String, FeedOptions)
Overloaded. This method creates a query for database resources under an Azure Cosmos DB database account by using a SQL statement. It returns an IQueryable{dynamic}.
public System.Linq.IQueryable<dynamic> CreateDatabaseQuery (string sqlExpression, Microsoft.Azure.Documents.Client.FeedOptions feedOptions = default);abstract member CreateDatabaseQuery : string * Microsoft.Azure.Documents.Client.FeedOptions -> System.Linq.IQueryable<obj>
override this.CreateDatabaseQuery : string * Microsoft.Azure.Documents.Client.FeedOptions -> System.Linq.IQueryable<obj>Public Function CreateDatabaseQuery (sqlExpression As String, Optional feedOptions As FeedOptions = Nothing) As IQueryable(Of Object)Parameters
- sqlExpression
- String
The SQL statement.
- feedOptions
- FeedOptions
The options for processing the query result feed. For details, see FeedOptions
Returns
An IQueryable{dynamic} that can evaluate the query with the provided SQL statement.
Implements
Examples
This example below queries for databases by id.
Database database = client.CreateDatabaseQuery("SELECT * FROM dbs d WHERE d.id = 'mydb'").AsEnumerable().FirstOrDefault();
Remarks
Refer to https://docs.microsoft.com/azure/cosmos-db/sql-query-getting-started/ for syntax and examples. ReadDatabaseAsync(String, RequestOptions) is recommended for single database look-up.
See also
Applies to
Azure SDK for .NET