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JSON_
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The JSON_ function is a set of three JSON functions, which add the given element to the end of a JSON array.
Arrays are of the form:
["alpha", "beta", "gamma"]
["alpha", 1, 2, 3]-
JSON_is for all numeric data.ARRAY_ PUSH_ DOUBLE Javascript has only one numeric type. -
JSON_is for all text and binary types.ARRAY_ PUSH_ STRING -
JSON_is for all valid Javascript types, includingARRAY_ PUSH_ JSON true,false, JSON maps, and lists.
JSON_ARRAY_PUSH_<type>(json, value)
Arguments
-
json: a valid JSON array, or the name of a JSON column. -
value: the value to add to the array.
Return Value
-
The complete array including the new element.
-
SQL NULL if json is not a valid JSON array.
Examples
SELECT JSON_ARRAY_PUSH_STRING('["alpha", "beta"]', 'gamma') AS add_letters;
+--------------------------+
| add_letters |
+--------------------------+
| ["alpha","beta","gamma"] |
+--------------------------+SELECT JSON_ARRAY_PUSH_STRING("0", "beta") AS add_letters;
+-------------+
| add_letters |
+-------------+
| NULL |
+-------------+SELECT JSON_ARRAY_PUSH_DOUBLE('[1, 2, 3]', 'delta') AS position;
+-----------+
| position |
+-----------+
| [1,2,3,0] |
+-----------+SELECT JSON_ARRAY_PUSH_JSON('["alpha", false]', '{"beta":"gamma"}') AS add_map;
+-------------------+
| add_map |
+-------------------+
| ["alpha",false, |
| {"beta":"gamma"}] |
+-------------------+Last modified: