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Oracle SQL Developer multiple table views

... SQL Developer can start a new tab every time you select a database object to view; but, you will have to close the tab manually. Set this in: Tools->Preferences->Database->ObjectViewer->Automatically Freeze Object Viewer Windows ...
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Algorithm to generate a crossword

...the previous steps can just be done once. First step of the algorithm is select an empty wordslot (grid word) at random and fill it with a candidate word from its associated wordlist (randomization enables to produce different solutons in consecutive executions of the algorithm) ( complexity O(1)...
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Where does Xcode 4 store Scheme Data?

... @Zaph No problem, just go to Product -> Manage Schemes... -> Select the shared scheme -> Click the Gear icon -> Duplicate -> Uncheck the "Shared" checkbox -> Rename if desired -> Click Edit... -> Make your changes to the scheme. They won't be picked up by people using...
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Print only?

...I was able to solve this by using some additional display:none styling for selected items but perhaps a more general solution is achievable by some combination of also forcing heights, overflow:none and absolute positioning for all divs or something. – Malcolm MacLeod ...
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How to prove that a problem is NP complete?

...o NP (that is that given a solution you can verify it in polynomial time) Select a known NP-complete problem L' Describe an algorithm f that transforms L' into L Prove that your algorithm is correct (formally: x ∈ L' if and only if f(x) ∈ L ) Prove that algo f runs in polynomial time ...
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LINQ to Entities only supports casting EDM primitive or enumeration types with IEntity interface

...i eventually found the solution which was for my extension method to call .Select(e => e as T) where T is the child class and e is the base class. full details are here: Create IQueryable<T> extension using base class in EF ...
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How to implement Rate It feature in Android App

...lay the pop up for 3 days and 10 launches. The same is done for those that selected to rate it, however the delays is longer (not to bother the user so soon in case that he has actually rated the app. This can be changed to not be shown again, then you will have to alter the code to your like). Hope...
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The quest for the Excel custom function tooltip

...{ return v1 + v2; } we get both the function description and when selecting the function, we get argument help That looks nice, but it's all still very flaky, only works on my machine and sometimes crashes Excel. It might be a start, though... Update 9 May 2014: I've made some progre...
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Bootstrap combining rows (rowspan)

... a row doesn't have to use row-fluid to accomplish this as suggested by my selected answer. I really appreciate it though! – Seong Lee May 3 '13 at 5:36 ...
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Why were pandas merges in python faster than data.table merges in R in 2012?

...re-computed indexes for various columns to accelerate operations like data selection and merges. In this case (database joins) pandas' DataFrame contains no pre-computed information that is being used for the merge, so to speak it's a "cold" merge. If I had stored the factorized versions of the join...