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MySQL ON DUPLICATE KEY - last insert id?
...LAST_INSERT_ID(3000)) ON DUPLICATE KEY UPDATE id = LAST_INSERT_ID(id + 1);
SELECT LAST_INSERT_ID();
If the prefix exists, it will increment it and populate last_insert_id.
If the prefix does not exist, it will insert the prefix with the value 3000 and populate last_insert_id with 3000.
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What's NSLocalizedString equivalent in Swift?
...ich make things really easy by just highlighting text, right-clicking, and selecting the menu item.
– Ethan Allen
May 11 at 0:14
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In an array of objects, fastest way to find the index of an object whose attributes match a search
...ANSWER is the most EFFICIENT since it doesn't iterate the whole array. The selected answer will map complete array and then findIndex which is bound to iterate through whole array once
– Karun
Aug 2 '19 at 11:30
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How to URL encode a string in Ruby
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@J-Rou, CGI.escape can escape whole URL, it does not selectively escapes query parameters, for instance, if you pass 'a=&!@&b=&$^' to CGI.escape it will escape whole thing with query separators & so this could be used only to query values. I suggest using addres...
REST APIs: custom HTTP headers vs URL parameters
... true metadata about the request for custom headers.
HTTP has a very wide selection of headers that cover most everything you'll need. Where I've seen custom headers come up is in a system to system request operating on behalf of a user. The proxy system will validate the user and add "X-User: us...
Storing JSON in database vs. having a new column for each key
..._food pizza
.................
and query via something like this:
select meta_val from `table` where meta_key = 'name' and uid = 1 order by meta_id desc
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DateTimePicker: pick both date and time
... change Date, then the pop-up calendar can be used whereas in case of Time selection (in the same control you are bound to use up/down keys to change values.
For example a custom format " ddddd, MMMM dd, yyyy hh:mm:ss tt " will give you a result like this : "Thursday, August 20, 2009 02:55:23 PM"....
When to use ' (or quote) in Lisp?
...WITH-STRING (LENGTH STRING))
Hey! That's not what we wanted. We want to selectively evaluate some arguments, and leave the others as symbols. Try #2!
(defun mess-with (number string)
(list 'value-of-number (1+ number) 'something-with-string (length string)))
Lisp> (mess-with 20 "foo")
(VAL...
Getting an object from an NSSet
...se filteredSetUsingPredicate if you have some kind of unique identifier to select the object you need.
First create the predicate (assuming your unique id in the object is called "identifier" and it is an NSString):
NSPredicate *myPredicate = [NSPredicate predicateWithFormat:@"identifier == %@", i...
Run a Docker image as a container
...ing
Then list all the containers you have made:
sudo docker ps -a
And select the container you want to work with (mine is 167ddd6d7f15):
sudo docker start -ai 167ddd6d7f15
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