https://community.appian.com/discussions/f/rules/3402/hi-there-try-to-achieve-compare-individual-attributes-value-withinHi there, Try to achieve: Compare individual attributes value within same element between two CDT instances. For example, CDT[1].field1=CDT[2].field1 AND CDT[1].field2=CDT[2].field2 AND CDT[1].field3=CDT[1].field3 AND ... Method has been Tried: Use tostringen-USTelligent Community 12https://community.appian.com/thread/15796?ContentTypeID=1Wed, 04 Mar 2015 18:35:16 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:252bd0fa-a437-4ba4-b97a-558600b4977ahenrydSorry for late response.<br />It works using straight comparison: if cdt[1]=cdt[2] if you find if cdt level value changed.<br />The inital proposal of my post works well if there are no any CDT attribute contains wiht comma (&quot;,&quot;) characters since it will mismatch numbers of attributes between CDT instances. So, I still don&#39;t find ideal solution for my requirement.<br />Thanks/Henry<div style="clear:both;"></div>https://community.appian.com/thread/15794?ContentTypeID=1Wed, 04 Mar 2015 18:12:00 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:d73c4ac3-8046-4395-a724-7a5ffa84b5d3mohammadsYou can utilize difference() function (<a href="https://forum.appian.com/suite/help/7.8/Set_Functions.html#difference.28.29)">forum.appian.com/.../Set_Functions.html</a> to compare CDTs. Just adding if some one lands here for solution.<div style="clear:both;"></div>https://community.appian.com/thread/15536?ContentTypeID=1Wed, 25 Feb 2015 22:55:04 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:9f3e50e5-2e6d-49f5-b023-0c41dfbb9247stephanekHi henryd , can you suggest me how you solve this ? it might help me in solving a requirement i have. thanks<div style="clear:both;"></div>https://community.appian.com/thread/15521?ContentTypeID=1Wed, 25 Feb 2015 08:11:50 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:78a01959-463b-4f97-8a46-fd71268c58dcjegadeeswaranHenry... Please share the solution if you got one.<br /><div style="clear:both;"></div>https://community.appian.com/thread/15519?ContentTypeID=1Wed, 25 Feb 2015 07:49:37 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:d253b948-2b61-4bc1-9e4d-fb5236962a5ejegadeeswaranHi Tim, Did you achieve your expected result if so could you please share how you did it... I do have same requirement.<div style="clear:both;"></div>https://community.appian.com/thread/11891?ContentTypeID=1Tue, 09 Sep 2014 13:35:54 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:29c9bf7b-1da4-4956-a040-be981ed8d6eeTimHi Henry, it does look like this is possible:<br />=with(<br /> local!cdt: {{id:1, desc: &quot;A&quot;}, {id:1, desc: &quot;B&quot;}},<br /> a!textField(<br /> value: local!cdt[1]=local!cdt[2]<br /> )<br />)<div style="clear:both;"></div>https://community.appian.com/thread/11874?ContentTypeID=1Mon, 08 Sep 2014 19:25:30 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:8ae31e63-dcc1-4b89-b3cf-2af6fed64f01henrydHi Tim,<br /><br />I am trying to track if any elemet values of CDT changed after numbers of processes executed. At end of process, I would find out that if I need to update database with this CDT if any of its element values have been changed, otherwise, do not update database. I was not sure that there is a generic straight way to do this: CDT[1]=CDT[2] comparison.<br /><br />Thanks/Henry<div style="clear:both;"></div>https://community.appian.com/thread/11872?ContentTypeID=1Mon, 08 Sep 2014 18:56:54 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:7a63debf-117b-4046-a631-5947556de2e2TimHave you tried the default AND() function? What is it you are trying to achieve?<div style="clear:both;"></div>