Create document from file path

Inserts a document whose JSON body is read from a local file. The file path must start with the @ symbol (e.g. @c:\data\order.json). Set IsMultiPart=1 in WITH so the driver reads from disk. Partition key rules are the same as for inline document insert.

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.

INSERT INTO TestContainer (PartitionKey, Document)
VALUES(
'["user2"]', --partition key value must match its attribute from document else it will throw error. In this example container PartitionKey is /id so we used its value. For multiple key use JSON array ["val1","val2"]
'@c:\data\order.json'   --path must start with @ symbol
)
WITH(Upsert='true', IsMultiPart=1)

Using OPENQUERY in SQL Server

SELECT * FROM OPENQUERY([LS_TO_COSMOS_DB_IN_GATEWAY], 'INSERT INTO TestContainer (PartitionKey, Document)
VALUES(
''["user2"]'', --partition key value must match its attribute from document else it will throw error. In this example container PartitionKey is /id so we used its value. For multiple key use JSON array ["val1","val2"]
''@c:\data\order.json''   --path must start with @ symbol
)
WITH(Upsert=''true'', IsMultiPart=1)')

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) = 'INSERT INTO TestContainer (PartitionKey, Document)
VALUES(
''["user2"]'', --partition key value must match its attribute from document else it will throw error. In this example container PartitionKey is /id so we used its value. For multiple key use JSON array ["val1","val2"]
''@c:\data\order.json''   --path must start with @ symbol
)
WITH(Upsert=''true'', IsMultiPart=1)'
EXEC (@MyQuery) AT [LS_TO_COSMOS_DB_IN_GATEWAY]