delete.md

layout	title	parent	nav_order
default	Delete	SQL	12

Delete

The DELETE statement deletes documents that satisfy the predicates in the WHERE clause. If you don't specify the WHERE clause, all documents are deleted.

Syntax

Rule singleDeleteStatement:

Example

SQL query:

DELETE FROM accounts
WHERE age > 30

Explain:

{
  "size" : 1000,
  "query" : {
    "bool" : {
      "must" : [
        {
          "range" : {
            "age" : {
              "from" : 30,
              "to" : null,
              "include_lower" : false,
              "include_upper" : true,
              "boost" : 1.0
            }
          }
        }
      ],
      "adjust_pure_negative" : true,
      "boost" : 1.0
    }
  },
  "_source" : false
}

Result set:

{
  "schema" : [
    {
      "name" : "deleted_rows",
      "type" : "long"
    }
  ],
  "total" : 1,
  "datarows" : [
    [
      3
    ]
  ],
  "size" : 1,
  "status" : 200
}

The datarows field shows the number of documents deleted.