Update document (full replace)

Replaces the entire document for the given Id. Set PartitionKey and Document to the full JSON body. The default request method is PUT (full replace). Use this when you want to overwrite the document completely; for changing only some fields use the partial update (PATCH) example.

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.

UPDATE TestContainer 
SET  
 PartitionKey='["user2"]'
,Document=
'{
  "id" : "user2",
  "name": "John Doe at <<FUN_NOW>>",
  "email": "jdoe@contoso.com",
  "phone": ["<<FUN_TODAY>>"],
  "level": "platinum"
}'
Where Id='user2'

Using OPENQUERY in SQL Server

SELECT * FROM OPENQUERY([LS_TO_COSMOS_DB_IN_GATEWAY], 'UPDATE TestContainer 
SET  
 PartitionKey=''["user2"]''
,Document=
''{
  "id" : "user2",
  "name": "John Doe at <<FUN_NOW>>",
  "email": "jdoe@contoso.com",
  "phone": ["<<FUN_TODAY>>"],
  "level": "platinum"
}''
Where Id=''user2''')

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) = 'UPDATE TestContainer 
SET  
 PartitionKey=''["user2"]''
,Document=
''{
  "id" : "user2",
  "name": "John Doe at <<FUN_NOW>>",
  "email": "jdoe@contoso.com",
  "phone": ["<<FUN_TODAY>>"],
  "level": "platinum"
}''
Where Id=''user2'''
EXEC (@MyQuery) AT [LS_TO_COSMOS_DB_IN_GATEWAY]