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JSON_GET_TYPE

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Returns the Javascript type of the given JSON object.

JSON_GET_TYPE(json)

Arguments

  • json: a valid JSON value.

Return Value

The type is returned as one of the following strings:

  • boolean

  • double

  • string

  • array

  • object

  • null

  • Or, SQL NULL if json is not a valid JSON object.

Examples

SELECT JSON_GET_TYPE('true');
+-----------------------+
| json_get_type('true') |
+-----------------------+
| boolean               |
+-----------------------+
SELECT JSON_GET_TYPE('12345');
+------------------------+
| JSON_GET_TYPE('12345') |
+------------------------+
| double                 |
+------------------------+
SELECT JSON_GET_TYPE('"alpha, beta, gamma"');
+---------------------------------------+
| JSON_GET_TYPE('"alpha, beta, gamma"') |
+---------------------------------------+
| string                                |
+---------------------------------------+
SELECT JSON_GET_TYPE('[1,2,3]');
+--------------------------+
| JSON_GET_TYPE('[1,2,3]') |
+--------------------------+
| array                    |
+--------------------------+
SELECT JSON_GET_TYPE('{"alpha”:1, "beta”:2}’);
+----------------------------------------+
| JSON_GET_TYPE('{"alpha":1, "beta":2}') |
+----------------------------------------+
| object                                 |
+----------------------------------------+
SELECT JSON_GET_TYPE('null');
+-----------------------+
| JSON_GET_TYPE('null') |
+-----------------------+
| null                  |
+-----------------------+

Note

A JSON or Javascript null value is distinct from SQL NULL.

Last modified: April 4, 2023

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