...in them. I want to know what types of problems that these functions are really good at solving. 16 Answers ...

... had this error many times and it can be quite hard to track down... Basically, what hibernate is saying is that you have two objects which have the same identifier (same primary key) but they are not the same object. I would suggest you break down your code, i.e. comment out bits until the error ...

...it or Mercurial there is no technical difference between trunk and branch: all branches are created equal (there might be social difference, though). Merging in either direction is done the same way. You need to provide new -g (--use-merge-history) option to svn log and svn blame to take merge trac...

... @DanBechard be careful when you reorder lines: if you accidentally cut and forget to paste: that commit is gone!! – BKSpurgeon Apr 13 at 1:50 add a comment ...

...- the join can be one->one, one->many, or many->many. So it's actually impossible to represent with a Venn diagram: all this diagram does is show you "what portion of the table will be involved in the join." In which case select a.* from a cross join b should have the same diagram as full o...

...epository, you have to git add it again if you want it to be staged. This allows you to commit only a subset of the changes you made since the last commit. For example, let's say you have file a, file b and file c. You modify file a and file b but the changes are very different in nature and you do...

...ause with a small tweak this works with named sessions: tmux attach -t some_name || tmux new -s some_name. Change some_name to $1 add a shebang, and save. – Cheezmeister Jan 9 '14 at 4:48 ...

... It's very unfortunate that you see dynamic allocation so often. That just shows how many bad C++ programmers there are. In a sense, you have two questions bundled up into one. The first is when should we use dynamic allocation (using new)? The second is when should w...

... @Andy following [53-54] allow you to apply more complex functions. – Andy Hayden May 3 '13 at 9:29 ...

...ds like you want to change the global CSS so which will effictively change all elements of a peticular style at once. I've recently learned how to do this myself from a Shawn Olson tutorial. You can directly reference his code here. Here is the summary: You can retrieve the stylesheets via docum...