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How to truncate milliseconds off of a .NET DateTime

...ue. SQL Server of course keeps some precision of milliseconds on the time, and when read into a .NET DateTime, it includes those milliseconds. The incoming request to the system, however, does not offer that precision, so I need to simply drop the milliseconds. ...
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How to find patterns across multiple lines using grep?

I want to find files that have "abc" AND "efg" in that order, and those two strings are on different lines in that file. Eg: a file with content: ...
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How should I use try-with-resources with JDBC?

...or the outer try in your example, so you can at least go down from 3 to 2, and also you don't need closing ; at the end of the resource list. The advantage of using two try blocks is that all of your code is present up front so you don't have to refer to a separate method: public List<User> g...
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Rotating videos with FFmpeg

...ut.mov For the transpose parameter you can pass: 0 = 90CounterCLockwise and Vertical Flip (default) 1 = 90Clockwise 2 = 90CounterClockwise 3 = 90Clockwise and Vertical Flip Use -vf "transpose=2,transpose=2" for 180 degrees. Make sure you use a recent ffmpeg version from here (a static build wi...
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Parse string to DateTime in C#

I have date and time in a string formatted like that one: 8 Answers 8 ...
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What is the ellipsis (…) for in this method signature?

...tOfStrings is an array of String. So you could save the compiler some work and pass an array: String[] argsVar = {"first", "second"}; obj.PrintWithEllipsis(argsVar); For varargs methods, a sequence parameter is treated as being an array of the same type. So if two signatures differ only in that o...
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How to specify a multi-line shell variable?

... set -e exits the shell if a command has an "unanticipated" non-zero exit status. By "unanticipated", I mean it runs in a context where you aren't specifically looking at its exit status. false by itself, for instance, would exit the shell. false || true wou...
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Using Chrome's Element Inspector in Print Preview Mode?

I am working on developing a website and need to work on the print view. Typically when I have layout issues I use Chrome's Element Inspector. However this does not exist in print preview mode. ...
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Fast permutation -> number -> permutation mapping algorithms

...you have n possibilities, so you can describe this with a number between 0 and n-1. For the position that the next element ends up at, you have n-1 remaining possibilities, so you can describe this with a number between 0 and n-2. Et cetera until you have n numbers. As an example for n = 5, consid...
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How to retrieve the current value of an oracle sequence without increment it?

...r FROM all_sequences WHERE sequence_owner = '<sequence owner>' AND sequence_name = '<sequence_name>'; You can get a variety of sequence metadata from user_sequences, all_sequences and dba_sequences. These views work across sessions. EDIT: If the sequence is in your default sch...