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What is the most efficient/elegant way to parse a flat table into a tree?

... sets (sometimes referred to as Modified Pre-order Tree Traversal) you can extract the entire tree structure or any subtree within it in tree order with a single query, at the cost of inserts being more expensive, as you need to manage columns which describe an in-order path through thee tree struct...
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CSV new-line character seen in unquoted field error

...lines version (which is very cools thanks) I get coercing to Unicode: need string or buffer, S3BotoStorageFile found – GrantU Jun 26 '13 at 9:21 4 ...
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C: Run a System Command and Get Output? [duplicate]

... parameter - command would be fine. What they don't do is take the entire string and pass it to a shell interpreter thereby allowing you to perform shell-style redirections, etc. It is therefore impossible to use exec in the manner described to achieve the OP's goal. – Alnita...
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Install a .NET windows service without InstallUtil.exe

...rocess.ServiceStartMode.Automatic; } } static void Install(bool undo, string[] args) { try { Console.WriteLine(undo ? "uninstalling" : "installing"); using (AssemblyInstaller inst = new AssemblyInstaller(typeof(Program).Assembly, args)) { IDictionary ...
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What is the motivation for bringing Symbols to ES6?

...t that the :symbol notion in Ruby is needless; we could easily use plain strings instead, like we do in JavaScript. And now they decide to complicate things in JS with that. ...
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New line in Sql Query

...server-difference-between-line-feed-n-and-carriage-return-r-t-sql-new-line-char/ DECLARE @NewLineChar AS CHAR(2) = CHAR(13) + CHAR(10) PRINT ('SELECT FirstLine AS FL ' + @NewLineChar + 'SELECT SecondLine AS SL') share ...
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Check if two unordered lists are equal [duplicate]

...se' The difference is, the later will print True, if list2 contains some extra elements along with all the elements of list1. In simple words, it will ensure that all the elements of list1 should be present in list2, regardless of whether list2 has some extra elements or not. ...
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How does zip(*[iter(s)]*n) work in Python?

... of n times the same iterator for s. So, when doing zip(*[iter(s)]*n), it extracts an item from all the three iterators from the list in order. Since all the iterators are the same object, it just groups the list in chunks of n. ...
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Pretty printing JSON from Jackson 2.2's ObjectMapper

... of org.fasterxml.jackson.databind.ObjectMapper and would like to get a String with pretty JSON. All of the results of my Google searches have come up with Jackson 1.x ways of doing this and I can't seem to find the proper, non-deprecated way of doing this with 2.2. Even though I don't believe t...
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How do you execute an arbitrary native command from a string?

...ress my need with the following scenario: Write a function that accepts a string to be run as a native command. 4 Answer...