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MySQL - UPDATE multiple rows with different values in one query
I am trying to understand how to UPDATE multiple rows with different values and I just don't get it. The solution is everywhere but to me it looks difficult to understand.
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Bogus foreign key constraint fail
...US" after the drop fails.
If it turns out to be the latter case, I'd dump and restore the whole server if you can.
MySQL 5.1 and above will give you the name of the table with the FK in the error message.
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How do you roll back (reset) a Git repository to a particular commit? [duplicate]
I cloned a Git repository and then tried to roll it back to a particular commit early on in the development process. Everything that was added to the repository after that point is unimportant to me so I want to omit all subsequent changes from my local source code.
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What is the proper REST response code for a valid request but an empty data?
... a browser (although according to the HTTP spec browsers do need to understand it as a 'don't change the view' response code).
204 No Content is however, very useful for ajax web services which may want to indicate success without having to return something. (Especially in cases like DELETE or POSTs...
List of tables, db schema, dump etc using the Python sqlite3 API
... can't find a way to get the equivalents of sqlite's interactive shell commands:
11 Answers
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Assertion failure in dequeueReusableCellWithIdentifier:forIndexPath:
So I was making an rss reader for my school and finished the code. I ran the test and it gave me that error. Here is the code it's referring to:
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How to get the changes on a branch in Git
...it-diff does not take a list of revisions - it takes one or two revisions, and has defined the A...B syntax to mean how it's defined in the git-diff manpage. If git-diff did not explicitly define A...B, then that syntax would be invalid. Note that the git-rev-parse manpage describes A...B in the "Sp...
Android: How can I pass parameters to AsyncTask's onPreExecute()?
...xactly what I did now. I still need a member variable but in the AsyncTask and not the outer class if that's what you mean. This is what I did: private class MyAsyncTask extends AsyncTask<Void, Void, Void> { private boolean showLoading; public MyAsyncTask(boolean showLoading) { ...
How to position a div in the middle of the screen when the page is bigger than the screen
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just add position:fixed and it will keep it in view even if you scroll down. see it at http://jsfiddle.net/XEUbc/1/
#mydiv {
position:fixed;
top: 50%;
left: 50%;
width:30em;
height:18em;
margin-top: -9em; /*set to a negative...
How to prevent a jQuery Ajax request from caching in Internet Explorer?
... old answer, just wondering if this affects all ajax like calls (ajax, get and post) or only specific ajax calls?
– Lumpy
Jan 26 '13 at 19:21
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