1943a5da5f
1. move `group_concat` from string-functions to aggregate-functions. 2. add `json_array`/`json_object`/`json_quote` to sidebar file. 3. move `json_array`/`json_object`/`json_quote`/`get_json_double`/`get_json_int`/`get_json_string` to json-functions. 4. change `group_concat` document to uppercase
1.9 KiB
1.9 KiB
title, language
| title | language |
|---|---|
| json_object | en |
json_object
Description
Syntax
VARCHAR json_object(VARCHAR,...)
Generate a json object containing the specified Key-Value, an exception error is returned when Key is NULL or the number of parameters are odd.
example
MySQL> select json_object();
+---------------+
| json_object() |
+---------------+
| {} |
+---------------+
MySQL> select json_object('time',curtime());
+--------------------------------+
| json_object('time', curtime()) |
+--------------------------------+
| {"time": "10:49:18"} |
+--------------------------------+
MySQL> SELECT json_object('id', 87, 'name', 'carrot');
+-----------------------------------------+
| json_object('id', 87, 'name', 'carrot') |
+-----------------------------------------+
| {"id": 87, "name": "carrot"} |
+-----------------------------------------+
MySQL> select json_object('username',null);
+---------------------------------+
| json_object('username', 'NULL') |
+---------------------------------+
| {"username": NULL} |
+---------------------------------+
keyword
json_object