GET_NUMBER Function

This function returns a numeric member value.

Syntax

APEX_JSON.GET_NUMBER (
    p_path             IN VARCHAR2,
    p0                 IN VARCHAR2 DEFAULT NULL,
    p1                 IN VARCHAR2 DEFAULT NULL,
    p2                 IN VARCHAR2 DEFAULT NULL,
    p3                 IN VARCHAR2 DEFAULT NULL,
    p4                 IN VARCHAR2 DEFAULT NULL,
    p_default          IN BOOLEAN  DEFAULT NULL,
    p_values           IN t_values DEFAULT g_values )
RETURN NUMBER;

Parameters

Parameter	Description
`p_path`	Index into `p_values`.
`p[0-4]`	Each `%N` in `p_path` is replaced by `pN` and every `i-th%` or `%d` is replaced by the `p[i-1]`.
`p_default`	The default value if the member does not exist.
`p_values`	Parsed JSON members. The default is `g_values`.

Returns and Raised Errors

Return	Description
`NUMBER`	The value at the given path position.
`VALUE_ERROR`	Raises this error if `p_values(p_path)` is not a number.

Example

This example parses a JSON string and prints the value at a position.

DECLARE 
    j apex_json.t_values; 
BEGIN 
    apex_json.parse(j, '{ "items": [ 1, 2, { "foo": 42 } ] }'); 
    dbms_output.put_line(apex_json.get_number(p_path=>'items[%d].foo',p0=> 3,p_values=>j)); 
END;