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LINQ Select Distinct with Anonymous Types

...DelegateComparer<T>(equals,null)); } } var uniqueItems=students.Select(s=> new {FirstName=s.FirstName, LastName=s.LastName}) .Distinct((a,b) => a.FirstName==b.FirstName, c => c.FirstName.GetHashCode()).ToList(); Sorry for the messed up formatting earlier ...
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How can I use optional parameters in a T-SQL stored procedure?

...ame varchar(25) = null, @Title varchar(25) = null AS BEGIN SELECT ID, FirstName, LastName, Title FROM tblUsers WHERE (@FirstName IS NULL OR (FirstName = @FirstName)) AND (@LastName IS NULL OR (LastName = @LastName )) AND (@Tit...
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Can I write a CSS selector selecting elements NOT having a certain class or attribute?

I would like to write a CSS selector rule that selects all elements that don't have a certain class. For example, given the following HTML: ...
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Difference between a theta join, equijoin and natural join

...ed SQL query would be like this (you can play with all the examples here) SELECT * FROM Product JOIN Component ON Product.Pname = Component.Pname and the result: | PNAME | PRICE | CNAME | COST | ---------------------------------- | Laptop | 1500 | CPU | 500 | | Laptop | 1500 | hdd ...
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DataSet panel (Report Data) in SSRS designer is gone

... With a report (rdl) file selected in your solution, select View and then Report Data. It is a shortcut of Ctrl+Alt+D. share | improve this answer...
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Maven error “Failure to transfer…”

...ed.properties). Then go back into Eclipse, Right-click on the project and select Maven > Update Project. I selected to "Force Update of Snapshots/Releases". Click Ok and the dependencies finally resolved correctly. shar...
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How do I configure a Python interpreter in IntelliJ IDEA with the PyCharm plugin?

... to File > Project Structure. Under the Project menu for Project SDK, select "New" and Select "Python SDK", then select "Local". Provided you have a Python SDK installed, the flow should be natural from there - navigate to the location your Python installation lives. ...
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IntelliJ: Viewing diff of all changed files between local and a git commit/branch

... new UI, click on Show Diff with Working Tree Next a window will pop up. Select Files and press cmd + d Another window which shows diff. You can perform many different types of diff. Use cmd + shift + ] and cmd + shift + [ to shift between files. Diff Tip: IntelliJ provides advanced diff feat...
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Adding devices to team provisioning profile

...e.com Add the UDID in devices Go back to XCode, open up the Organizer and select "Provisioning Profiles", ensure that "Automatic Device Provisioning" is checked on the top right pane, then click on the "Refresh" button, and magically all your devices set in the provisioning portal will be automati...
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How to do an update + join in PostgreSQL?

... coming from mysql it's unintuitive that the same join used for select won't also update just by adding a set phrase :( still - the syntax for this is probably easier for a newcomer to sql to master. – WEBjuju Jul 16 at 19:47 ...