# ElasticSQL math operation **URL:** \ **Category:** Kibana\ **Tags:** canvas\ **Created:** [June 7, 2019, 2:02am UTC](https://discuss.elastic.co/t/elasticsql-math-operation/184680 "2019-06-07T02:02:09Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Woolis\_Xiibil\_Peek](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/woolis_xiibil_peek/32/42830_2.png) [@Woolis\_Xiibil\_Peek](https://discuss.elastic.co/u/Woolis_Xiibil_Peek)\ **Post date:** [June 7, 2019, 2:02am UTC](https://discuss.elastic.co/t/elasticsql-math-operation/184680/1 "2019-06-07T02:02:09Z")
Hi. I need to substract two queries. I have try this SELECT SUM ((SELECT COUNT (_) AS "op\_totals" FROM "app20-_" WHERE "path" = '/ops/login') - (SELECT COUNT (_) AS "op\_succ" FROM "app20-_" WHERE "operacion" = 79)) AS "op\_fail" But I get an error that Expression failed with the message: [essql] \> Unexpected error from Elasticsearch: [unsupported\_operation\_exception] null What I'm doing wrong? Please HELP!!!! :(šŸ˜¢ ---
**Author:** ![Andrei\_Stefan](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/andrei_stefan/32/47533_2.png) [@Andrei\_Stefan](https://discuss.elastic.co/u/Andrei_Stefan)\ **Post date:** [June 7, 2019, 4:27pm UTC](https://discuss.elastic.co/t/elasticsql-math-operation/184680/2 "2019-06-07T16:27:13Z")
Hi @Woolis_Xiibil_Peek, This type of operation is not supported. [Anything that involves sub-selects is in general unsupported](https://www.elastic.co/guide/en/elasticsearch/reference/current/sql-limitations.html#_using_a_sub_select). ---
**Author:** ![Woolis\_Xiibil\_Peek](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/woolis_xiibil_peek/32/42830_2.png) [@Woolis\_Xiibil\_Peek](https://discuss.elastic.co/u/Woolis_Xiibil_Peek)\ **Post date:** [June 7, 2019, 5:15pm UTC](https://discuss.elastic.co/t/elasticsql-math-operation/184680/3 "2019-06-07T17:15:38Z")
Is there another way to do it? ---
**Author:** ![Andrei\_Stefan](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/andrei_stefan/32/47533_2.png) [@Andrei\_Stefan](https://discuss.elastic.co/u/Andrei_Stefan)\ **Post date:** [June 10, 2019, 12:08pm UTC](https://discuss.elastic.co/t/elasticsql-math-operation/184680/4 "2019-06-10T12:08:26Z")
What is your complete query? ---
**Author:** ![Woolis\_Xiibil\_Peek](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/woolis_xiibil_peek/32/42830_2.png) [@Woolis\_Xiibil\_Peek](https://discuss.elastic.co/u/Woolis_Xiibil_Peek)\ **Post date:** [June 11, 2019, 6:59pm UTC](https://discuss.elastic.co/t/elasticsql-math-operation/184680/5 "2019-06-11T18:59:31Z")
Hi Andrei. I need to substract this two queries. SELECT COUNT (_) AS "op\_totals" FROM "app20-_" WHERE "path" = '/ops/login' and SELECT COUNT (_) AS "op\_succ" FROM "app20-_" WHERE "operacion" = 79 Something like op\_totals - op\_succ I also have try SELECT COUNT("path") - COUNT("operacion") AS "x" FROM "app20-\*" WHERE "path" = '/ops/login' (something) "operacion" = 79 But I missing something between path and operaciĆ³n on WHERE sentence ---
**Author:** ![tims](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tims/32/46750_2.png) [@tims](https://discuss.elastic.co/u/tims)\ **Post date:** [June 12, 2019, 7:09pm UTC](https://discuss.elastic.co/t/elasticsql-math-operation/184680/6 "2019-06-12T19:09:34Z")
Could you do something like SELECT COUNT(\*) as "total" FROM "app20-" WHERE "path" = '/ops/login' AND "operacion" != 79 Maybe I'm missing something. ---
**Author:** ![Woolis\_Xiibil\_Peek](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/woolis_xiibil_peek/32/42830_2.png) [@Woolis\_Xiibil\_Peek](https://discuss.elastic.co/u/Woolis_Xiibil_Peek)\ **Post date:** [June 19, 2019, 8:17pm UTC](https://discuss.elastic.co/t/elasticsql-math-operation/184680/7 "2019-06-19T20:17:41Z")
Hi. Thank you, but it didn't make what I looking for. I like to make the substraction of the total of the operations minus the succesful operations to get the failed operations. ops\_failed = ops\_total - ops\_ succ. I use this two queries to get the values 1. SELECT COUNT ( _) AS "op\_totals" FROM "app20-_ " WHERE "path" = '/ops/login' 2. SELECT COUNT ( _) AS "op\_succ" FROM "app20-_ " WHERE "operacion" = 79 But I'm failling making the math operation. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 17, 2019, 8:17pm UTC](https://discuss.elastic.co/t/elasticsql-math-operation/184680/8 "2019-07-17T20:17:43Z")
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