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json_valid

json_valid​

description​

json_valid functions returns 0 or 1 to indicate whether a value is valid JSON and Returns NULL if the argument is NULL.

Syntax​

JSONB json_valid(VARCHAR json_str)

example​

  1. parse valid JSON string
MySQL > SELECT json_valid('{"k1":"v31","k2":300}');
+-------------------------------------+
| json_valid('{"k1":"v31","k2":300}') |
+-------------------------------------+
| 1 |
+-------------------------------------+
1 row in set (0.02 sec)
  1. parse invalid JSON string
MySQL > SELECT json_valid('invalid json');
+----------------------------+
| json_valid('invalid json') |
+----------------------------+
| 0 |
+----------------------------+
1 row in set (0.02 sec)
  1. parse NULL
MySQL > select json_valid(NULL);
+------------------+
| json_valid(NULL) |
+------------------+
| NULL |
+------------------+
1 row in set (0.02 sec)

keywords​

JSON, VALID, JSON_VALID