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SELECT DISTINCT on one column

... add a comment  |  45 ...
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Best way to remove from NSMutableArray while iterating?

...e formulation should be faster. i.e. If you iterate through the array and compose a new array of objects to keep, instead of objects to discard. That may be true (although what about the memory and processing cost of allocating a new array, and discarding the old one?) but even if it's faster it m...
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Use of “global” keyword in Python

...s not defined While if you use the global statement, the variable will become available "outside" the scope of the function, effectively becoming a global variable. def bob(): global me me = "locally defined" # Defined locally but declared as global print(me) bob() print(me) # ...
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Error handling with node.js streams

... you can listen on, but I want to know some more details about arbitrarily complicated situations. 8 Answers ...
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With Mercurial, how can I “compress” a series of changesets into one before pushing?

... I start working on a feature. I work on it, and when I think it's done, I commit the changeset. Testing it a bit more, I find that I could further improve this feature by tweaking something in the code. I make the change and commit. 20 minutes later, I find there's a bug in this new feature, so I f...
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How to supply value to an annotation from a Constant java

... be possible in Java because annotation and its parameters are resolved at compile time. I have an interface as follows, 6 ...
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Edit and Continue: “Changes are not allowed when…”

... community wiki 5 revs, 2 users 71%nightcoder ...
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adb server version doesn't match this client

... your adb by going into folder platform-tools which adb placed and do this command: ./adb kill-server ./adb start-server *tips: You may close the process of Genymotion before running the command above Hope this help. sh...
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Multi-line string with extra space (preserved indentation)

...redoc sounds more convenient for this purpose. It is used to send multiple commands to a command interpreter program like ex or cat cat << EndOfMessage This is line 1. This is line 2. Line 3. EndOfMessage The string after << indicates where to stop. To send these lines to a file, use...
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SQL Server String or binary data would be truncated

... I had faced the same problem and had to compare all the column types and sizes of both the tables to fix the issue. – Aziz Shaikh Jun 17 '11 at 16:40 ...