Collections:
JSON_REMOVE() - Removing JSON Child Members
How to remove child members of a JSON (JavaScript Object Notation) value using the JSON_REMOVE() function?
✍: FYIcenter.com
JSON_REMOVE(json, path1, path2, ...) is a MySQL built-in function that removes child members of a JSON value at given locations, which are specified by path arguments in the "$.key" or "$[i]" format. For example:
SET @j = '["a", {"b": [1, 2]}, [3, 4]]'; SELECT JSON_REMOVE(@j, '$[1]'), JSON_REMOVE(@j, '$[1].b'); -- +-------------------------+---------------------------+ -- | JSON_REMOVE(@j, '$[1]') | JSON_REMOVE(@j, '$[1].b') | -- +-------------------------+---------------------------+ -- | ["a", [3, 4]] | ["a", {}, [3, 4]] | -- +-------------------------+---------------------------+ SELECT JSON_REMOVE(@j, '$'); ERROR 3153 (42000): The path expression '$' is not allowed in this context.
Reference information of the JSON_REMOVE() function:
JSON_REMOVE(json, path1, path2, ...): modjson Removes child members of a JSON value at given locations, which are specified by path arguments in the "$.key" or "$[i]" format. Arguments, return value and availability: json: Required. The JSON value to be updated. path1, path2, ...: One or more JSON path locations of members to be removed. modjson: Return value. The updated JSON value. Available since MySQL 5.7.
Related MySQL functions:
⇒ JSON_REPLACE() - Replacing JSON Child Members
⇐ JSON_QUOTE() - Quoting JSON String
2023-12-10, 281🔥, 0💬
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