Linq 2 SQL Syntax Help
I am almost done converting a MySQL app to Linq2SQL but struggling to get my head round this last SQL query
SELECT a.URL, b.URL AS DuplicateURL
FROM Pages a
INNER JOIN Pages b ON a.MetaDescript开发者_如何学Goion = b.MetaDescription
AND a.PageID <> b.PageID
WHERE a.DomainID = @reportid
AND b.DomainID = @reportid
AND LENGTH(TRIM(a.MetaDescription)) > 0
AND a.URL < b.URL
ORDER BY a.URL ASC
Could anymore give me some syntax help on how I would create this query in Linq2SQL?
Any help greatly appreciated
It goes like this:
var DuplicatePages =
from a in DBContext.Pages
join b in DBContext.Pages on a.MetaDescription equals b.MetaDescription
where (a.PageID <> b.PageID) && (a.DomainID == ReportID) &&
(b.DomainID == ReportID) && (a.MetaDescription.Trim().Length > 0) &&
(a.URL < b.URL)
orderby a.URL
select new { Url = a.URL, DuplicateUrl = b.URL };
That's pretty straigtforward:
var reportId = ...;
var duplicates =
from a in db.Pages
from b in db.Pages
where a.MetaDescription == b.MetaDescription
where a.PageID != b.PageID
where a.DomainID == reportId
where b.DomainID == reportId
where a.MetaDescription.Trim().Length > 0
where a.URL < b.URL
orderby a.URL
select new { Url = a.URL, DuplicateUrl = b.Url }
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