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Xcode 4 - “Archive” is greyed out?

... You have to select the device in the schemes menu in the top left where you used to select between simulator/device. It won’t let you archive a build for the simulator. Or you may find that if the iOS device is already selected the ar...
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Linq: GroupBy, Sum and Count

...a" is coming from, but the problem in the console app is that you're using SelectMany to look at each item in each group. I think you just want: List<ResultLine> result = Lines .GroupBy(l => l.ProductCode) .Select(cl => new ResultLine { ProductName =...
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Replace Default Null Values Returned From Left Outer Join

... for left outer join. Is there a way to replace the default values in the select statement? I have a workaround in that I can select into a table variable but it feels a little dirty. ...
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How to flatten nested objects with linq expression

... myBooks.SelectMany(b => b.Chapters .SelectMany(c => c.Pages .Select(p => b.Name + ", " + c.Name + ", " + p.Name))); share | ...
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SQL Server: Is it possible to insert into two tables at the same time?

...LARE @DataID int; INSERT INTO DataTable (Column1 ...) VALUES (....); SELECT @DataID = scope_identity(); INSERT INTO LinkTable VALUES (@ObjectID, @DataID); COMMIT The good news is that the above code is also guaranteed to be atomic, and can be sent to the server from a client application w...
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How do you debug MySQL stored procedures?

...E debug_msg(enabled INTEGER, msg VARCHAR(255)) BEGIN IF enabled THEN select concat('** ', msg) AS '** DEBUG:'; END IF; END $$ CREATE PROCEDURE test_procedure(arg1 INTEGER, arg2 INTEGER) BEGIN SET @enabled = TRUE; call debug_msg(@enabled, 'my first debug message'); call debug_msg(@ena...
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Postgres could not connect to server

After I did brew update and brew upgrade, my postgres got some problem. I tried to uninstall postgres and install again, but it didn't work as well. ...
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Delete branches in Bitbucket

... in Bitbucket go to branches in left hand side menu. Select your branch you want to delete. Go to action column, click on three dots (...) and select delete. share | improve t...
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How can I selectively escape percent (%) in Python strings?

... >>> test = "have it break." >>> selectiveEscape = "Print percent %% in sentence and not %s" % test >>> print selectiveEscape Print percent % in sentence and not have it break. ...
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Unpivot with column name

...hould be able to use the following which includes the subject in the final select list: select u.name, u.subject, u.marks from student s unpivot ( marks for subject in (Maths, Science, English) ) u; See SQL Fiddle with demo ...