JSONParser Example: Nondefault Values - Teradata Vantage

Input

The input table, json_parser_data, is a single JSON record with multiple fields.

{"menu": {
  "id": "1",
  "value": "File",
  "popup": {
     "menuitem": [
       {"value": "New", "onclick": "CreateNewDoc()"},
       {"value": "Open", "onclick": "OpenDoc()"},
       {"value": "Close", "onclick": "CloseDoc()"}
     ]
   }
}}

SQL Call

NodeIDOutputColumnName and ParentNodeOutputColumnName have nondefault values.

SELECT * FROM JSONParser(
  ON json_parser_data
  USING
  TextColumn('data1')
  Nodes('menu/{id,value}','menuitem/value')
  Delimiter('|')
  
  NodeIdOutputColumn('Fieldnumber')
  
  ParentNodeOutputColumn('ParentName')
  Accumulate('id')
) AS dt ;

Output

 id fieldnumber parentname menu_id menu_value menuitem_value 
 -- ----------- ---------- ------- ---------- -------------- 
  1           1 menu       1       File                     
  1           2 menuitem                      New|Open|Close

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