# Elasticsearch - check if the parameter is not empty

**URL:** <https://discuss.elastic.co/t/elasticsearch-check-if-the-parameter-is-not-empty/323096>\
**Category:** Elasticsearch\
**Created:** [January 13, 2023, 7:30am UTC](https://discuss.elastic.co/t/elasticsearch-check-if-the-parameter-is-not-empty/323096 "2023-01-13T07:30:47Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![Java2avaj](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/java2avaj/32/99497_2.png) [@Java2avaj](https://discuss.elastic.co/u/Java2avaj)\
**Post date:** [January 13, 2023, 7:30am UTC](https://discuss.elastic.co/t/elasticsearch-check-if-the-parameter-is-not-empty/323096/1 "2023-01-13T07:30:47Z")

</div>

In SQL, we can perform the following in the where clause:

```auto
SELECT * FROM tbl WHERE :parameter <> '' OR :parameter is not null

```

Is this possible in Elasticsearch to check if the input parameter/value is not null or empty? I checked the exists query but the parameter is a field, not a parameter.

---

<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [January 13, 2023, 8:42am UTC](https://discuss.elastic.co/t/elasticsearch-check-if-the-parameter-is-not-empty/323096/2 "2023-01-13T08:42:32Z")

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No.

Why not doing that on the client who creates the query instead of in the query itself?  
First time I'm seeing this in SQL.

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<div class="post-metadata">

**Author:** ![Java2avaj](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/java2avaj/32/99497_2.png) [@Java2avaj](https://discuss.elastic.co/u/Java2avaj)\
**Post date:** [January 13, 2023, 9:31am UTC](https://discuss.elastic.co/t/elasticsearch-check-if-the-parameter-is-not-empty/323096/3 "2023-01-13T09:31:09Z")

</div>

Thanks for you reply. Just for follow up for context, I need to modify the existing dsl query such that I need to ensure that the ${userId1} is not empty using terms lookup:

```auto
{
   "bool":{
      "must":[
         {
            "bool":{
               "should":[
                  {
                     "terms":{
                        "userAccessCodes":{
                           "index":"user-access-codes",
                           "id":"${userId1}",
                           "path":"userAccessCodes"
                        }
                     }
                  },
                  {
                     "terms":{
                        "userAccessCodes":{
                           "index":"user-access-codes",
                           "id":"${userId2}",
                           "path":"userAccessCodes"
                        }
                     }
                  }
               ]
            }
         }
      ]
   }
}

```

---

<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [January 13, 2023, 11:29am UTC](https://discuss.elastic.co/t/elasticsearch-check-if-the-parameter-is-not-empty/323096/4 "2023-01-13T11:29:58Z")

</div>

Where `userId1` and `userId2` are generated? Are you using a query template?

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [February 10, 2023, 11:30am UTC](https://discuss.elastic.co/t/elasticsearch-check-if-the-parameter-is-not-empty/323096/5 "2023-02-10T11:30:06Z")

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