Re: Get attributes names

On 24.01.2019 11:54, ramsiddu007 wrote:
> Dear all,
>               I hope you are all doing well. Today i got one
> requirement, for that i need attribute names as below example.
>
> Xml:
> <emp>
> <emp_details emp_id="101"  emp_name="tom" dept="development"/>
> </emp>
>
> In the above sample input xml, i want attributes list of emp_deails like.
> Attributes
> ___________
> emp_id
> emp_name
> dept
>
>
> Thanking you,
>
In PostgreSQL 11 (and 10 I think) you can do something like this:

=# CREATE TABLE xmldata AS SELECT xml $$
<emp>
<emp_details emp_id="101" emp_name="tom" dept="development"/>
</emp>
$$
as data;
=# SELECT xmltable.*
FROM xmldata,
xmltable('/emp/emp_details/@*' passing data
columns atrr text path 'name()');
atrr
----------
emp_id
emp_name
dept

--
Arthur Zakirov
Postgres Professional: http://www.postgrespro.com
Russian Postgres Company