Split XML field into multiple delimited values - SQL - sql-server

Question

I have some XML content in a single field; I want to split each xml field in multiple rows.
The XML is something like that:
<env>
<id>id1<\id>
<DailyProperties>
<date>01/01/2022<\date>
<value>1<\value>
<\DailyProperties>
<DailyProperties>
<date>05/05/2022<\date>
<value>2<\value>
<\DailyProperties>
<\env>
I want to put everything in a table as:
ID DATE VALUE
id1 01/01/2022 1
id1 05/05/2022 2
For now I managed to parse the xml value, and I have found something online to get a string into multiple rows (like this), but my string should have some kind of delimiter. I did this:
SELECT
ID,
XMLDATA.X.query('/env/DailyProperties/date').value('.', 'varchar(100)') as r_date,
XMLDATA.X.query('/env/DailyProperties/value').value('.', 'varchar(100)') as r_value
from tableX
outer apply xmlData.nodes('.') as XMLDATA(X)
WHERE ID = 'id1'
but I get all values without a delimiter, as such:
01/10/202202/10/202203/10/202204/10/202205/10/202206/10/202207/10/202208/10/202209/10/202210/10/2022
Or, as in my example:
ID R_DATE R_VALUE
id01 01/01/202205/05/2022 12
I have found out that XQuery has a last() function that return the last value parsed; in my xml example it will return only 05/05/2022, so it should exists something for address the adding of a delimiter. The number of rows could vary, as it could vary the number of days of which I have a value.

Answer 1

Please try the following solution.
I had to fix your XML to make it well-formed.
SQL
DECLARE #tbl TABLE (id INT IDENTITY PRIMARY KEY, xmldata XML);
INSERT INTO #tbl (xmldata) VALUES
(N'<env>
<id>id1</id>
<DailyProperties>
<date>01/01/2022</date>
<value>1</value>
</DailyProperties>
<DailyProperties>
<date>05/05/2022</date>
<value>2</value>
</DailyProperties>
</env>');
SELECT p.value('(id/text())[1]','VARCHAR(20)') AS id
, c.value('(date/text())[1]','VARCHAR(10)') AS [date]
, c.value('(value/text())[1]','INT') AS [value]
FROM #tbl
CROSS APPLY xmldata.nodes('/env') AS t1(p)
OUTER APPLY t1.p.nodes('DailyProperties') AS t2(c);
Output
id
date
value
id1
01/01/2022
1
id1
05/05/2022
2

Answer 2

Yitzhak beat me to it by 2 min. Nonetheless, here's what I have:
--==== XML Data:
DECLARE #xml XML =
'<env>
<id>id1</id>
<DailyProperties>
<date>01/01/2022</date>
<value>1</value>
</DailyProperties>
<DailyProperties>
<date>05/05/2022</date>
<value>2</value>
</DailyProperties>
</env>';
--==== Solution:
SELECT
ID = ff2.xx.value('(text())[1]','varchar(20)'),
[Date] = ff.xx.value('(date/text())[1]', 'date'),
[Value] = ff.xx.value('(value/text())[1]', 'int')
FROM (VALUES(#xml)) AS f(X)
CROSS APPLY f.X.nodes('env/DailyProperties') AS ff(xx)
CROSS APPLY f.X.nodes('env/id') AS ff2(xx);
Returns:
ID Date Value
-------------------- ---------- -----------
id1 2022-01-01 1
id1 2022-05-05 2