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Using Git with an existing Xcode project
... process, mostly pieced together from the other answers on this page/site. Order is very important here
Open terminal and cd into the directory containing the .xcodeproj file
git init
In finder enter the newly created .git folder (in the same directory as the .xcodeproj file). Find info/exclude, o...
How do I use reflection to invoke a private method?
...meters, or with too much parameters, or not enough... or even in the wrong order (this one my favourite :) ). By the way return type could change as well.
Reflection is slow.
Private members reflection breaks encapsulation principle and thus exposing your code to the following :
Increase complex...
What is “the inverse side of the association” in a bidirectional JPA OneToMany/ManyToOne association
...o understand this, you must take a step back. In OO, the customer owns the orders (orders are a list in the customer object). There can't be an order without a customer. So the customer seems to be the owner of the orders.
But in the SQL world, one item will actually contain a pointer to the other....
Why is there no SortedList in Java?
...rantee first and foremost that you get the list's elements in the internal order of the list (aka. insertion order). More specifically it is in the order you've inserted the elements or on how you've manipulated the list. Sorting can be seen as a manipulation of the data structure, and there are sev...
SQL Group By with an Order By
... all versions of MySQL, simply alias the aggregate in the SELECT list, and order by the alias:
SELECT COUNT(id) AS theCount, `Tag` from `images-tags`
GROUP BY `Tag`
ORDER BY theCount DESC
LIMIT 20
share
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Implement paging (skip / take) functionality with this query
... 2012 it is very very easy
SELECT col1, col2, ...
FROM ...
WHERE ...
ORDER BY -- this is a MUST there must be ORDER BY statement
-- the paging comes here
OFFSET 10 ROWS -- skip 10 rows
FETCH NEXT 10 ROWS ONLY; -- take 10 rows
If we want to skip ORDER BY we can use
SELECT col1, col...
Optimizing away a “while(1);” in C++0x
...
The relevant issue is that the compiler is allowed to reorder code whose side effects do not conflict. The surprising order of execution could occur even if the compiler produced non-terminating machine code for the infinite loop.
I believe this is the right approach. The langu...
Why is exception handling bad?
...each individual method to get it right and roll back when that happens, or order your operations so throws don't effect object state. If you get it wrong (and it's easy to make this kind of mistake), then the caller ends up seeing your intermediate values.
Methods like RAII, which C++ programmers ...
REST API Login Pattern
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Delete with Join in MySQL
...wanted to:
DELETE posts, projects FROM posts INNER JOIN [...]
Note that order by and limit don't work for multi-table deletes.
Also be aware that if you declare an alias for a table, you must use the alias when referring to the table:
DELETE p FROM posts as p INNER JOIN [...]
Contributions ...