# Do Tulip Expressions offer any sort of isnull() function **URL:** \ **Category:** General\ **Created:** [April 29, 2022, 4:40pm UTC](https://community.tulip.co/t/do-tulip-expressions-offer-any-sort-of-isnull-function/5119 "2022-04-29T16:40:03Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![wkurth4008](https://avatars.discourse-cdn.com/v4/letter/w/c2a13f/32.png) [@wkurth4008](https://community.tulip.co/u/wkurth4008)\ **Post date:** [April 29, 2022, 4:40pm UTC](https://community.tulip.co/t/do-tulip-expressions-offer-any-sort-of-isnull-function/5119/1 "2022-04-29T16:40:03Z")
In an expression, for storing data in a variable, or record, using Data Manipulation, I see several ‘built-in’ functions such as (TRIM(), LEN(), FIND(), USER\_ID\_TO\_USER(), etc.). Is there any sort of IsNull function available for use in expressions. Like I have in SQL where I can express a conditional that returns the value if it is not null or a ‘hard-coded’ value if the field is null?? ( ie. isnull(Record,0)). Thanks, William ---
**Author:** ![Grant](https://sea2.discourse-cdn.com/flex020/user_avatar/community.tulip.co/grant/32/182_2.png) [@Grant](https://community.tulip.co/u/Grant)\ **Post date:** [April 29, 2022, 4:50pm UTC](https://community.tulip.co/t/do-tulip-expressions-offer-any-sort-of-isnull-function/5119/2 "2022-04-29T16:50:46Z")
Hi @wkurth4008, You can use LINK() to pass in a series of arguments and the first non-null value will be returned! Let us know if that helps! ---
**Author:** ![wkurth4008](https://avatars.discourse-cdn.com/v4/letter/w/c2a13f/32.png) [@wkurth4008](https://community.tulip.co/u/wkurth4008)\ **Post date:** [April 29, 2022, 5:24pm UTC](https://community.tulip.co/t/do-tulip-expressions-offer-any-sort-of-isnull-function/5119/3 "2022-04-29T17:24:13Z")
Yes, that is exactly what I wanted!!! THanks!!! William