跳到主要内容

PARSE_JSON

parse_json and try_parse_json interprets an input string as a JSON document, producing a VARIANT value.

try_parse_json returns a NULL value if an error occurs during parsing.

Syntax​

PARSE_JSON(<expr>)
TRY_PARSE_JSON(<expr>)

Arguments​

ArgumentsDescription
<expr>An expression of string type (e.g. VARCHAR) that holds valid JSON information.

Return Type​

VARIANT

Examples​

SELECT parse_json('[-1, 12, 289, 2188, false]');
+------------------------------------------+
| parse_json('[-1, 12, 289, 2188, false]') |
+------------------------------------------+
| [-1,12,289,2188,false]                   |
+------------------------------------------+

SELECT try_parse_json('{ "x" : "abc", "y" : false, "z": 10} ');
+---------------------------------------------------------+
| try_parse_json('{ "x" : "abc", "y" : false, "z": 10} ') |
+---------------------------------------------------------+
| {"x":"abc","y":false,"z":10}                            |
+---------------------------------------------------------+