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POC# Convert SQL query to LINQ
 

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  1. POC# Convert SQL query to LINQ
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    <p>I have what I think is a complex SQL query, and i need to convert it to LINQ query. But, I'm only a beginner in LINQ and don't know how to get this working. I've tried searching the internet and still unable to get it to work.</p> <p>Here is my SQL query:</p> <pre><code>SELECT a.empid, CAST(IF(COUNT(*) &gt; 10,FLOOR(COUNT(*) / 10),1) AS CHAR(100)) lim, CAST(GROUP_CONCAT(internalid) AS CHAR) internalIDS FROM tblLogs a INNER JOIN ( SELECT DISTINCT empid FROM tblLogs WHERE IsDeleted = 0 AND DateAdded = 2013-04-18 ) b ON a.empid = b.empid WHERE IsDeleted = 0 AND Remarks NOT LIKE '%proxy date used%' AND DateAdded = 2013-04-18 AND RecType = 8 GROUP BY empid; </code></pre> <p>Hi. Here is my updated linq query, but it returns an error Linq to Entities does not recognize the method string.join. What's wrong with this? Thanks. :)</p> <pre><code>var rows = from rec in context.tblWMSLogs join rec1 in context.tblWMSLogs.Where(t =&gt; t.DateAdded == refDate2 &amp;&amp; t.IsDeleted == 0) on rec.EmpID equals rec1.EmpID where rec.DateAdded == refDate2 &amp;&amp; rec.IsDeleted == 0 &amp;&amp; !rec.Remarks.Contains("proxy date used") &amp;&amp; rec.RecType == recType group rec by rec.EmpID into g select new WMSRandomViewModel { EmpID = g.Key, Lim = (g.Count() &gt; 10 ? Math.Ceiling(g.Count() / 10d) : 1), InternalIDs = string.Join(",", g.OrderBy(s =&gt; s.InternalID).Select(s =&gt; s.InternalID)) };//string.Join(",", g.OrderBy(s =&gt; s.InternalID).Select(s =&gt; s.InternalID)) //return rows.ToList(); return rows.ToList(); </code></pre>
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    1. CODoes your attempt compile? If so, does it give you what you want? What exactly is your question?
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