Upsert document using UPSERT keyword

Same as upsert with INSERT and the Upsert option in WITH, but uses the UPSERT INTO syntax so you do not need the WITH clause. Use whichever style you prefer; behavior is the same.

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.

UPSERT 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"]
'{
  "id": "user2",
  "name": "John Doe",
  "email": "jdoe@contoso.com",
  "phone": ["12345"],
  "level": "platinum"
}')

Using OPENQUERY in SQL Server

SELECT * FROM OPENQUERY([LS_TO_COSMOS_DB_IN_GATEWAY], 'UPSERT 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"]
''{
  "id": "user2",
  "name": "John Doe",
  "email": "jdoe@contoso.com",
  "phone": ["12345"],
  "level": "platinum"
}'')')

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) = 'UPSERT 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"]
''{
  "id": "user2",
  "name": "John Doe",
  "email": "jdoe@contoso.com",
  "phone": ["12345"],
  "level": "platinum"
}'')'
EXEC (@MyQuery) AT [LS_TO_COSMOS_DB_IN_GATEWAY]