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Generating a random & unique 8 character string using MySQL
...eaving out the number plate
SELECT @lid:=LAST_INSERT_ID();
UPDATE vehicles SET numberplate=concat(
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed:=round(rand(@lid)*4294967296))*36+1, 1),
substring('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', rand(@seed:=round(rand(@seed)*4294967296))*36...
jquery-ui-dialog - How to hook into dialog close event
I am using the jquery-ui-dialog plugin
10 Answers
10
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Check whether an array is a subset of another
Any idea on how to check whether that list is a subset of another?
8 Answers
8
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How can I make git ignore future revisions to a file?
...es the repository, they get a copy of this file. However, I would like to set git so that it ignores changes to this file later. .gitignore works only on untracked files.
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Count all occurrences of a string in lots of files with grep
I have a bunch of log files. I need to find out how many times a string occurs in all files.
15 Answers
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How do I 'overwrite', rather than 'merge', a branch on another branch in Git?
...0-07-30:
I thought a bit more about this question and possible solutions. If you absolutely require the merge parents in the correct order, need perform this action with a single command line invocation, and don't mind running plumbing commands, you can do the following:
$ git checkout A
$ git merge...
How to get response status code from jQuery.ajax?
...s code of a ajax response, one can use the following code:
$.ajax( url [, settings ] )
.always(function (jqXHR) {
console.log(jqXHR.status);
});
Works similarily for .done() and .fail()
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Query to list number of records in each table in a database
...n every table. Add a WHERE P.INDEX_ID IN (0,1) to limit the return result set to heaps or clustered indexes only where appropriate.
– Rasmus Remmer Bielidt
Dec 1 '16 at 8:09
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Can I have multiple :before pseudo-elements for the same element?
... :before pseudo-element, but normal CSS imply that only one of the content settings can take effect (by normal cascade rules). The point is that content does not accumulate.
– Jukka K. Korpela
Aug 17 '12 at 9:47
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defaultdict of defaultdict?
...you try to access a key that doesn't exist. The return value of it will be set as the new value of this key, which means in our case the value of d[Key_doesnt_exist] will be defaultdict(int).
If you try to access a key from this last defaultdict i.e. d[Key_doesnt_exist][Key_doesnt_exist] it will re...