Combining two LINQ queries into one
I have a table that has about 15 different fields, some of which are JobID (integer field), Cost (integer field) and LastUpdated (DateTime field)
JobID Cost LastUpdated 1 10 10-July-2011 1 15 11-June-2011 2 25 5-May-2011 1 15 12-April-2011
Is it possible to write a single LINQ query to get the cost for job id = 1 as well as the latest date of that cost?
Sample query output for the example data above to look like this:
40 , 10-july-2011
I am currently doing this with two different linq queries like this, which results in two images to the database from the website in this particular case.
//for last updated (from row in MyTable where row.JobID == 1 orderby row.LastUpdated descending select row.LastUpdated).First() //for sum of cost (from row in MyTable where row.JobID == 1 select row.Cost).Sum()
Would a single linq query be better in this case? Cases like this during page load will result in multiple hits in the database, about 18 in total, to 9 different tables. When combining the sum and the LastUpdated date in one query, I am trying to reduce the hit count to 9, one for each table.
Thank you for your time...
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