SQL Server guide

List all documents in a container


Returns all documents in the specified container (table). Use the container name as the table in the FROM clause; the default database and container from the connection are used unless you override with WITH. Use for small containers or when you need a full dump; for large data sets consider a query with a filter.

Standard SQL query example

This is the base query accepted by the connector. To execute it in SQL Server, you have to pass it to the Data Gateway via a Linked Server. See how to accomplish this using the examples below.

SELECT * FROM TestContainer

Using OPENQUERY in SQL Server

SELECT * FROM OPENQUERY([LS_TO_COSMOS_DB_IN_GATEWAY], 'SELECT * FROM TestContainer')

Using EXEC in SQL Server (handling larger SQL text)

The major drawback of OPENQUERY is its inability to incorporate variables within SQL statements. This often leads to the use of cumbersome dynamic SQL (with numerous ticks and escape characters).

Fortunately, starting with SQL 2005 and onwards, you can utilize the EXEC (your_sql) AT [LS_TO_COSMOS_DB_IN_GATEWAY] syntax.

DECLARE @MyQuery NVARCHAR(MAX) = 'SELECT * FROM TestContainer'
EXEC (@MyQuery) AT [LS_TO_COSMOS_DB_IN_GATEWAY]