JSON_TYPE
Syntax
JSON_TYPE(json_val)
Description
Returns the type of a JSON value (as a string), or NULL if the argument is null.
An error will occur if the argument is an invalid JSON value.
The following is a complete list of the possible return types:
Return type | Value | Example |
---|---|---|
ARRAY | JSON array | [1, 2, {"key": "value"}] |
OBJECT | JSON object | {"key":"value"} |
BOOLEAN | JSON true/false literals | true, false |
DOUBLE | A number with at least one floating point decimal. | 1.2 |
INTEGER | A number without a floating point decimal. | 1 |
NULL | JSON null literal (this is returned as a string, not to be confused with the SQL NULL value!) | null |
STRING | JSON String | "a sample string" |
Examples
SELECT JSON_TYPE('{"A": 1, "B": 2, "C": 3}'); +---------------------------------------+ | JSON_TYPE('{"A": 1, "B": 2, "C": 3}') | +---------------------------------------+ | OBJECT | +---------------------------------------+
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