# Equality of two flow variables in Rule Engine **URL:** \ **Category:** KNIME Analytics Platform\ **Created:** [December 12, 2020, 2:51pm UTC](https://forum.knime.com/t/equality-of-two-flow-variables-in-rule-engine/29418 "2020-12-12T14:51:21Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![KKERROXXX](https://forum-cdn.knime.com/letter_avatar_proxy/v4/letter/k/958977/32.png) [@KKERROXXX](https://forum.knime.com/u/KKERROXXX)\ **Post date:** [December 12, 2020, 2:51pm UTC](https://forum.knime.com/t/equality-of-two-flow-variables-in-rule-engine/29418/1 "2020-12-12T14:51:21Z")
Hi everyone, I am working on a flow consist of two different flow variable generated by a variable selection node. I try to use these two flow variables in rule engine node to set some rule. When I set a rule given below, I get “This rule might never match” warning. $${Svalue (column)}$$ = $${Svalue}$$ =\> 1 TRUE =\> 0 The variable $${Svalue (column)}$$ is a column name that can be selected in variable selection node. The other variable $${Svalue}$$ is a specific value of $${Svalue (column)}$$ that can be selected in same variable selection node. Can anyone help me to solve this issue? Thanks, Kerem ---
**Author:** ![crnico](https://forum-cdn.knime.com/letter_avatar_proxy/v4/letter/c/eada6e/32.png) [@crnico](https://forum.knime.com/u/crnico)\ **Post date:** [December 13, 2020, 7:18am UTC](https://forum.knime.com/t/equality-of-two-flow-variables-in-rule-engine/29418/2 "2020-12-13T07:18:36Z")
Hi kkerroxxx, Could you please share a pièce of workflow so I can try to help you? ---
**Author:** ![ipazin](https://forum-cdn.knime.com/user_avatar/forum.knime.com/ipazin/32/806_2.png) [@ipazin](https://forum.knime.com/u/ipazin)\ **Post date:** [December 15, 2020, 11:49am UTC](https://forum.knime.com/t/equality-of-two-flow-variables-in-rule-engine/29418/3 "2020-12-15T11:49:33Z")
Hello @KKERROXXX, what are you trying to accomplish with comparing column name versus single column value? Or maybe that is not what you are aiming for? Br, Ivan ---
**Author:** ![KKERROXXX](https://forum-cdn.knime.com/letter_avatar_proxy/v4/letter/k/958977/32.png) [@KKERROXXX](https://forum.knime.com/u/KKERROXXX)\ **Post date:** [December 23, 2020, 7:59pm UTC](https://forum.knime.com/t/equality-of-two-flow-variables-in-rule-engine/29418/4 "2020-12-23T19:59:12Z")
@ipazin Actually I am trying to assign selected variable value to the selected variable column Best ---
**Author:** ![Daniel\_Weikert](https://forum-cdn.knime.com/letter_avatar_proxy/v4/letter/d/e47c2d/32.png) [@Daniel\_Weikert](https://forum.knime.com/u/Daniel_Weikert)\ **Post date:** [December 24, 2020, 8:03am UTC](https://forum.knime.com/t/equality-of-two-flow-variables-in-rule-engine/29418/5 "2020-12-24T08:03:36Z")
you could try to use nodes like variable to table row to first get the variable value in a row and then do your comparison. bR ---
**Author:** ![ipazin](https://forum-cdn.knime.com/user_avatar/forum.knime.com/ipazin/32/806_2.png) [@ipazin](https://forum.knime.com/u/ipazin)\ **Post date:** [January 11, 2021, 10:56am UTC](https://forum.knime.com/t/equality-of-two-flow-variables-in-rule-engine/29418/6 "2021-01-11T10:56:45Z")
Hello @KKERROXXX, have you managed to get it working? If you still need help an example would help 😉 Br, Ivan ---
**Author:** ![KKERROXXX](https://forum-cdn.knime.com/letter_avatar_proxy/v4/letter/k/958977/32.png) [@KKERROXXX](https://forum.knime.com/u/KKERROXXX)\ **Post date:** [January 19, 2021, 9:15pm UTC](https://forum.knime.com/t/equality-of-two-flow-variables-in-rule-engine/29418/7 "2021-01-19T21:15:18Z")
Hi @ipazin, I have solved the problem, thank you! Best Kerem, ---
**Author:** ![system](https://forum-cdn.knime.com/uploads/default/original/1X/ab3ccf34482a0329361734a18199390177204f15.png) [@system](https://forum.knime.com/u/system)\ **Post date:** [July 21, 2021, 9:15am UTC](https://forum.knime.com/t/equality-of-two-flow-variables-in-rule-engine/29418/8 "2021-07-21T09:15:23Z")
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