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How to show SQL queries run in the Rails console?
...swered May 29 '10 at 17:44
John TopleyJohn Topley
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Validate uniqueness of multiple columns
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What is the difference between buffer and cache memory in Linux?
...b.archive.org/web/20110207101856/http://www.linuxforums.org/articles/using-top-more-efficiently_89.html
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Delete last commit in bitbucket
...eset HEAD^
git pull
If they have pulled the bad commit, and committed on top of it, then they will have to reset, and then git cherry-pick the good commits that they want to create, effectively re-creating the whole branch without the bad commit.
If they never pulled the bad commit, then this who...
Java unchecked: unchecked generic array creation for varargs parameter
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What's the best way to check if a file exists in C?
...eason access() broke in my code. I moved from DevC++ to CodeBlocks and it stopped working. So, it's not infallible; +1 more to @Leffler.
– Ben
Dec 13 '10 at 6:10
12
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A Java collection of value pairs? (tuples?)
...cs examples that is easy enough to write on your own. For example, off the top of my head:
public class Pair<L,R> {
private final L left;
private final R right;
public Pair(L left, R right) {
assert left != null;
assert right != null;
this.left = left;
this.right = ri...
How does Activity.finish() work in Android?
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@CommonsWare How we can ensure that onStop is called always ? In my app OnStop and onDestroy are not called in some cases and in those cases the child activity takes too much time in finishing and that looks like App has hanged... Whereas when onStop is called eve...
How to change the playing speed of videos in HTML5?
...on with the video. The try the command again.
– Christopher Harwood
Nov 9 '18 at 16:45
add a ...
postgresql - add boolean column to table set default
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