https://community.appian.com/discussions/f/general/19870/how-to-save-indexes-of-array-of-a-cdt-to-database-rowHi Team, I have data as CDT = {A,B,C,D} and my interface is returning values as multiple i.e list/arrray of CDT{[A,B,C,D], [A,B,C,D], [A,B,C,D]}. I want to store data into my table in mssql as array index 1 to first row of db, 2nd index to 2nd rowen-USTelligent Community 12https://community.appian.com/thread/77650?ContentTypeID=1Fri, 06 Nov 2020 12:42:38 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:a8ff368d-dd11-4153-a134-d1ad50b1efbeRichard Michaelis<p>Hi Arshbirs,<br />I am not sure if i understand your issues correctly.<br />1.) as best practice the feist attribute of an cdt should be id.&nbsp; &nbsp; your_cdt.id<br />2.) what do you try to archive? A bit more details here makes it easier to support you properly.</p><div style="clear:both;"></div>