Re: json_table(httpgetclob, nested array

[Booth Martin <booth@xxxxxxxxxxxx>]

Been a long couple of days.

           exec sql select * into :wCount, :wSeas
             from json_table(systools.httpgetclob(:wURL, ''), '$'
               columns(
                 wData_length dec(3,0) path 'lax $.wData_length',
                 nested 'lax $.SeasOceans[*]'
                 columns(
                 SeasOceans varchar(20) path 'lax $')) );

returns the count and the first array element with an sql message:

"Result of SELECT more than one row.
SQLCODE = -811"

Which is not incorrect, but I thought was handled by "nested"?  Perhaps 
it is related to SQLRPGLE more than to SQL?



On 11/15/2019 1:18 PM, Peter Dow wrote:
> The documentation I was reading at 
> https://www.ibm.com/support/knowledgecenter/en/ssw_ibm_i_73/sqlp/rbafyjsontable.htm 
>
>
> did not have an explanation of the "path". Reading further, I found 
> where it had example of an array within the json object. That got me to
>
> SELECT * FROM json_table('
> {
>    "wData_length":14,
>    "SeasOceans":[
>       "Adriatic Sea",
>       "Arctic Ocean",
>       "Atlantic Ocean",
>       "Bay of Bengal",
>       "Caribbean Sea"
>    ]
> }',
>  'lax $.SeasOceans[*]'
>  COLUMNS(
>  SeasOceans varchar(40) PATH 'lax $')
> ) as jt
>
> which returns
>
> ....+....1....+....2....+....3....+....4
> SEASOCEANS
> Adriatic Sea
> Arctic Ocean
> Atlantic Ocean
> Bay of Bengal
> Caribbean Sea
> ********  End of data  ********
>
> I still have no idea what the lax in the path means.  I tried changing 
> it to abc and it didn't complain, but it didn't select anything either.
>
> --
> *Peter Dow* /
> Dow Software Services, Inc.
> 909 793-9050
> petercdow@xxxxxxxxx <mailto:petercdow@xxxxxxxxx>
> pdow@xxxxxxxxxxxxxx <mailto:pdow@xxxxxxxxxxxxxx> /