RE: [URL Verdict: Neutral][Non-DoD Source] Re: [External] : JSON

Awesome…I will give it another try this morning.  

From: oracle-l-bounce_at_freelists.org <oracle-l-bounce_at_freelists.org> On Behalf Of Sayan Malakshinov Sent: Monday, November 28, 2022 6:47 PM
To: gerald.venzl_at_oracle.com
Cc: Terrian, Thomas J CTR DLA INFO OPERATIONS (USA) <Tom.Terrian.ctr_at_dla.mil>; oracle-l <oracle-l_at_freelists.org> Subject: [URL Verdict: Neutral][Non-DoD Source] Re: [External] : JSON  

Hi Terrian,  

Show your json file, please. I've ran my test successfully with this file:

https://gist.github.com/xtender/e4f9936a21638955d3ef3d0c12b58224  

$ cat D_20221122.txt
[
  {
    "N":1,
    "cData": [
{"cCode": "123"},
{"cCode": "345"},
{"cCode": "456"}

    ]
  },
  {
    "N":2,
    "cData": [
{"cCode": "100"},
{"cCode": "200"},
{"cCode": "300"}

    ]
  }
]  

SQL> select jt.*
  2 from json_table(

  3         bfilename('DATA_PUMP_DIR', 'D_20221122.txt'),
  4         '$[*]'
  5         Columns(
  6           N int,
  7           Nested path '$.cData[*]'
  8           columns(
  9             cCode varchar2(5) path '$.cCode[*]'
 10           )
 11         )
 12       ) jt;

         N CCODE
---------- -----
         1 123
         1 345
         1 456
         2 100
         2 200
         2 300

6 rows selected.    

On Mon, Nov 28, 2022 at 11:32 PM Gerald Venzl <dmarc-noreply_at_freelists.org <mailto:dmarc-noreply_at_freelists.org> > wrote:

Happy to help if you can provide me with the file format with some dummy data :)  

Thx,  

Gerald Venzl | Senior Director | Product Management Email: <mailto:gerald.venzl_at_oracle.com> gerald.venzl_at_oracle.com Oracle ST & Database Development
400 Oracle Parkway | Redwood Shores | 94065 | USA

On Nov 28, 2022, at 16:02, Terrian, Thomas J CTR DLA INFO OPERATIONS (USA) <Tom.Terrian.ctr_at_dla.mil <mailto:Tom.Terrian.ctr_at_dla.mil> > wrote:  

Thanks…Oracle 19.  

I tried setting up an external table with the JSON file as the source. I couldn’t figure out the syntax. I will try again tomorrow.  

From: Gerald Venzl <gerald.venzl_at_oracle.com <mailto:gerald.venzl_at_oracle.com> > Sent: Monday, November 28, 2022 2:24 PM
To: Terrian, Thomas J CTR DLA INFO OPERATIONS (USA) <Tom.Terrian.ctr_at_dla.mil <mailto:Tom.Terrian.ctr_at_dla.mil> > Cc: oracle-l <oracle-l_at_freelists.org <mailto:oracle-l_at_freelists.org> > Subject: [URL Verdict: Neutral][Non-DoD Source] Re: [External] : JSON  

JSON_TABLE will see the entire content of the text file as just one record.

You need to tell the DB that the file contains multiple records separated by X, probably a new line.  

Instead of using BFILENAME, the better approach is probably an External Table over the file, see: https://docs.oracle.com/en/database/oracle/oracle-database/19/adjsn/loading-external-json-data.html#GUID-52EFC452-5E65-4148-8070-1FA588A6E697  

Depending on which DB version you are, you can probably just use an Inline External Table definition: https://oracle-base.com/articles/18c/inline-external-tables-18c  

Thanks,  

Gerald Venzl | Senior Director | Product Management Email: gerald.venzl_at_oracle.com <mailto:gerald.venzl_at_oracle.com> Oracle ST & Database Development
400 Oracle Parkway | Redwood Shores | 94065 | USA  

On Nov 28, 2022, at 12:14, Terrian Thomas J CTR DLA INFO OPERATIONS <dmarc-noreply_at_freelists.org <mailto:dmarc-noreply_at_freelists.org> > wrote:  

Anyone know how to load a JSON file into a database?  

When I run:  

select *

from json_table(

bfilename('JSON_DATA', 'D_20221122.txt'),

'$[*]'

Columns(

Nested path '$.cData[*]'

columns(

cCode varchar2(5) path '$.cCode[*]'

)

                                                )

);  

I get only 1 record:  

CCODE

7MDQ6   How can I see all of the records in the file (JSON_DATA/'D_20221122.txt)?    

-- 

Best regards,
Sayan Malakshinov

Oracle performance tuning engineer

Oracle ACE
http://orasql.org







--
http://www.freelists.org/webpage/oracle-l




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