![]() The XMLDB team mentioned the following goals. Due to it’s growing use JSON support is the logical next step for, in this case the Oracle XMLDB development team, to implement this support in the database. JSON, JavaScript Object Notation has fairly the same kind of structures as XML. Without going into the flame wars between the XML and JSON communities, JSON is widely used and probably therefor has its merits in current build solutions. That is, of course, with the nowadays common disclaimer, it probably will, but is not guaranteed by Oracle that they actually also will do so as presented… Nether the less it would be, could be a welcome new functionality. This session demonstrated the new upcoming feature (=not in the current release) in the 12c database which supports JSON data handling in the database. The views I express on this website are my own and do not necessarily reflect the views of Oracle.Currently I am attending the “Schema less data management using SQL/JSON” session during Oracle OpenWorld. For Release 21c, see JSON Developer's Guide. If you're not using JSON data type then you need to ensure that the data in a JSON column is in fact valid JSON data, by defining an is json check constraint on it.įor Release 12c (12.1.0.2), see JSON in Oracle Database. Condition json_exists is analogous to XMLExists for XML. You can define JSON-specific indexes on the data.įunctions json_query and json_table are analogous to SQL/XML standard functions XMLQuery and XMLTable for XML. You can use SQL functions json_value, json_query, and json_table, and SQL conditions json_exists, is json, is not json, and json_textcontains, to query the data. If you have Release 21c then you can store JSON natively, as JSON data type. If you have Oracle Database Release 12c Release 1 (12.1.0.2) then you can store JSON in the database in a VARCHAR2, CLOB, or BLOB column, and then query it in SQL using JSON path expressions (analogous to XPath expressions for XML). (I know that the googleapi will allow xml response, but there are other web APIs that I use regularly that default to JSON) * code for all the other defined exceptions you can recover from */ Url_resp := 'Http_Client_Error: ' || Utl_Http.get_detailed_sqlerrm ![]() ![]() Url_resp := 'Http_Server_Error: ' || Utl_Http.get_detailed_sqlerrm 'Http_Server_Error: ' || Utl_Http.get_detailed_sqlerrm Url_resp :='Request_Failed: ' || Utl_Http.get_detailed_sqlerrm 'Request_Failed: ' || Utl_Http.get_detailed_sqlerrm Utl_Http.Set_Detailed_Excp_Support ( ENABLE=>FALSE )Īnd it is NEVER raised after calling with ENABLE=>TRUE Request_Failed is raised for all exceptions after calling Would use these when it coded explicit recovery actions. The exception handling illustrates the use of "pragma-ed" exceptions Utl_Http.read_text (r => resp, DATA => v_msg) Utl_Http.get_header (r => resp, n => i, NAME => NAME, VALUE => VALUE) ĭBMS_OUTPUT.put_line (NAME || ': ' || VALUE) Resp := Utl_Http.get_response (r => req) ĭBMS_OUTPUT.put_line ('Status code: ' || resp.status_code) ĭBMS_OUTPUT.put_line ('Reason phrase: ' || resp.reason_phrase) įOR i IN 1. Utl_t_header (r => req, NAME => 'User-Agent', VALUE => 'Mozilla/4.0') Req := Utl_Http.begin_request (url => v_url, method => 'GET') Īlternatively use method => 'POST' and Utl_Http.Write_Text toįor_proxy => FALSE -this info is for the target Web server Utl_t_detailed_excp_support (ENABLE => TRUE ) * allow testing for exceptions like Utl_Http.Http_Server_Error */ Utl_t_response_error_check (ENABLE => TRUE ) * request that exceptions are raised for error Status Codes */ ![]() Is there an easy way to work with JSON within Oracle? I have a stored procedure that I use to call web services quite often, JSON is a format that I am familiar with in web development context, but what is the best way to work with JSON within a stored procedure? For instance take the CLOB response from the URI, convert that to a JSON object and get a value from that?įor reference sake, here is the procedure I used to fetch URLs create or replace procedure macp_URL_GET(url_resp in out clob, v_url in varchar2) is
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