Run the loop to the number of xml elements in SQLServer - sql-server

Question

I have an xml and I want an operation to be repeated in the query for each xml element.
Please help me
DECLARE #PersonelIds XML
= '<?xml version="1.0" encoding="utf-8"?>
<ArrayOfPersonelsIdsVm xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<PersonelsIdsVm>
<PersonelId>c2aadd5d-209d-ec11-8f3c-b42e99ed152b</PersonelId>
</PersonelsIdsVm>
<PersonelsIdsVm>
<PersonelId>0d197668-209d-ec11-8f3c-b42e99ed152b</PersonelId>
</PersonelsIdsVm>
</ArrayOfPersonelsIdsVm>';
DECLARE #FromDate DATE = CONVERT(DATE, '2022/05/1');
DECLARE #Days INT = 0;
--XML Initialize
DECLARE #handler INT;
EXEC sys.sp_xml_preparedocument #handler OUT, #PersonelIds;
DECLARE #i INT =0
WHILE 'xml count' <= #i
BEGIN
-- 'my code ... for example : print PersonelId'
END
Help me find the elements in order in the loop

Answer 1

Microsoft proprietary OPENXML() and its companions sp_xml_preparedocument and sp_xml_removedocument are kept just for backward compatibility with the obsolete SQL Server 2000. Their use is diminished just to very few fringe cases.
Starting from SQL Server 2005 onwards, it is strongly recommended to re-write your SQL and switch it to XQuery.
Also, OPENXML() cannot take advantage of XML indexes while XQuery methods can.
SQL
DECLARE #PersonelIds XML =
'<?xml version="1.0" encoding="utf-8"?>
<ArrayOfPersonelsIdsVm xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<PersonelsIdsVm>
<PersonelId>c2aadd5d-209d-ec11-8f3c-b42e99ed152b</PersonelId>
</PersonelsIdsVm>
<PersonelsIdsVm>
<PersonelId>0d197668-209d-ec11-8f3c-b42e99ed152b</PersonelId>
</PersonelsIdsVm>
</ArrayOfPersonelsIdsVm>';
SELECT c.value('(PersonelId/text())[1]', 'UNIQUEIDENTIFIER') AS PersonelId
FROM #PersonelIds.nodes('/ArrayOfPersonelsIdsVm/PersonelsIdsVm') AS t(c);
Output
+--------------------------------------+
| PersonelId |
+--------------------------------------+
| C2AADD5D-209D-EC11-8F3C-B42E99ED152B |
| 0D197668-209D-EC11-8F3C-B42E99ED152B |
+--------------------------------------+