Download attachment to local disk

Downloads a single attachment to a local file. Specify the attachment ID and the full path where the file should be saved. You can choose whether to overwrite an existing file, fail if it exists, or skip. Use the attachment ID from a task or project attachment list.

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 download_attachment 
WITH (
   AttachmentId='1208216218258030'
 , TargetFilePath='c:\temp\1208216218258030_AWS-refund-request.png' 
 , FileOverwriteMode=0 --0=AlwaysOverwrite, 1=FailIfExists, 2=SkipIfExists
)

Using OPENQUERY in SQL Server

SELECT * FROM OPENQUERY([LS_TO_ASANA_IN_GATEWAY], 'SELECT * FROM download_attachment 
WITH (
   AttachmentId=''1208216218258030''
 , TargetFilePath=''c:\temp\1208216218258030_AWS-refund-request.png'' 
 , FileOverwriteMode=0 --0=AlwaysOverwrite, 1=FailIfExists, 2=SkipIfExists
)')

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_ASANA_IN_GATEWAY] syntax.

DECLARE @MyQuery NVARCHAR(MAX) = 'SELECT * FROM download_attachment 
WITH (
   AttachmentId=''1208216218258030''
 , TargetFilePath=''c:\temp\1208216218258030_AWS-refund-request.png'' 
 , FileOverwriteMode=0 --0=AlwaysOverwrite, 1=FailIfExists, 2=SkipIfExists
)'
EXEC (@MyQuery) AT [LS_TO_ASANA_IN_GATEWAY]