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Developer-C 11.1
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create table dbo.T ( ID int identity primary key, XMLDoc xml not null ); insert into dbo.T(XMLDoc) select ( select case when N.SomeText % 2 = 0 then 'NiceText' else 'MoreText' end as SomeText for xml path(''), type ) from ( select top(1000) row_number() over(order by (select null)) as SomeText from sys.columns as c1, sys.columns as c2 ) as N;
1000 rows affected
create selective xml index SIX_T on dbo.T(XMLDoc) for ( pathXQUERY = '/SomeText/text()' as xquery 'xs:string' maxlength(8) singleton ); create xml index SIX_T_pathXQUERY on dbo.T(XMLDoc) using xml index SIX_T for (pathXQUERY);
declare @S varchar(8) = 'MoreText' select count(T.ID) from dbo.T as T where T.XMLDoc.exist('/SomeText/text()[. eq sql:variable("@S")]') = 1 option (optimize for (@S = 'unlikely'));
(No column name)
500