Using 2 CROSS APPLY in XML - sql

Question

I'm using below XML to fetch the ClauseCode but it's not returning any data for the below query.
<Policy>
<Plans>
<Plan>
<ProductEndorsementClauses>
<ClauseCode>3</ClauseCode>
</ProductEndorsementClauses>
</Plan>
<Plan>
<ProductEndorsementClauses>
<ClauseCode>1</ClauseCode>
<ClauseCode>2</ClauseCode>
</ProductEndorsementClauses>
</Plan>
<Plan>
<ProductEndorsementClauses>
<ClauseCode>5</ClauseCode>
<ClauseCode>4</ClauseCode>
</ProductEndorsementClauses>
</Plan>
</Plans>
</Policy>
Here is my query :
select proposaid,
,Col1.value('(/*/ProductEndorsementClauses/ClauseCode)[1]','nvarchar(max)')
from Policy p
CROSS APPLY data.nodes('/*/Plans/Plan') AS Tbl(Col)
CROSS APPLY Tbl.Col.nodes('/ProductEndorsementClauses/ClauseCode') AS TblPec(Col1)
where Col1.value('(ProductEndorsementClauses/ClauseCode)[1]', 'nvarchar(max)') in ('1','3')

Answer 1

For inspiration:
declare #x xml = N'
<Policy>
<Plans>
<Plan>
<ProductEndorsementClauses>
<ClauseCode>3</ClauseCode>
</ProductEndorsementClauses>
</Plan>
<Plan>
<ProductEndorsementClauses>
<ClauseCode>1</ClauseCode>
<ClauseCode>2</ClauseCode>
</ProductEndorsementClauses>
</Plan>
<Plan>
<ProductEndorsementClauses>
<ClauseCode>5</ClauseCode>
<ClauseCode>4</ClauseCode>
</ProductEndorsementClauses>
</Plan>
</Plans>
</Policy>'
select #x
--all clause code values
select t.col.value('.[1]', 'nvarchar(10)')
from #x.nodes('Policy/Plans/Plan/ProductEndorsementClauses/ClauseCode') as t(col);
--only clause code values that have at least a 1, 3 clause code in their parent ProductEndorsementClauses
select t.col.value('.[1]', 'nvarchar(10)')
from #x.nodes('Policy/Plans/Plan/ProductEndorsementClauses[(./ClauseCode/text() = "1") or (./ClauseCode/text() = "3")]/ClauseCode') as t(col);
--result only when exists at least a 1 or 3
select t.col.value('.[1]', 'nvarchar(max)')
from #x.nodes('Policy/Plans/Plan/ProductEndorsementClauses/ClauseCode') as t(col)
where #x.exist('Policy/Plans/Plan/ProductEndorsementClauses/ClauseCode[text() = "1" or text() = "3"]') = 1;
declare #Policy table
(
proposaid int,
data xml
);
insert into #Policy(proposaid, data)
values(1, N'
<Policy>
<Plans>
<Plan>
<ProductEndorsementClauses>
<ClauseCode>3</ClauseCode>
</ProductEndorsementClauses>
</Plan>
<Plan>
<ProductEndorsementClauses>
<ClauseCode>1</ClauseCode>
<ClauseCode>2</ClauseCode>
</ProductEndorsementClauses>
</Plan>
<Plan>
<ProductEndorsementClauses>
<ClauseCode>5</ClauseCode>
<ClauseCode>4</ClauseCode>
</ProductEndorsementClauses>
</Plan>
</Plans>
</Policy>'),
(2, N'
<Policy>
<Plans>
<Plan>
<ProductEndorsementClauses>
<ClauseCode>13</ClauseCode>
</ProductEndorsementClauses>
</Plan>
<Plan>
<ProductEndorsementClauses>
<ClauseCode>11</ClauseCode>
<ClauseCode>12</ClauseCode>
</ProductEndorsementClauses>
</Plan>
<Plan>
<ProductEndorsementClauses>
<ClauseCode>15</ClauseCode>
<ClauseCode>14</ClauseCode>
</ProductEndorsementClauses>
</Plan>
</Plans>
</Policy>');
select *
from #Policy;
select p.proposaid,
t.col.value('.[1]', 'nvarchar(max)')
from #Policy as p
cross apply p.data.nodes('Policy/Plans/Plan/ProductEndorsementClauses/ClauseCode') as t(col)
where p.data.exist('Policy/Plans/Plan/ProductEndorsementClauses/ClauseCode[text() = "1" or text() = "3"]') = 1;