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Is the order of iterating through std::map known (and guaranteed by the standard)?
...l iterate consequently through the elements with keys, sorted in ascending order?
6 Answers
...
Select first row in each GROUP BY group?
...OW_NUMBER() OVER(PARTITION BY p.customer
ORDER BY p.total DESC) AS rk
FROM PURCHASES p)
SELECT s.*
FROM summary s
WHERE s.rk = 1
Supported by any database:
But you need to add logic to break ties:
SELECT MIN(x.id), -- change to MAX if you want the hi...
Is there a `pointer-events:hoverOnly` or similar in CSS?
...r but without that ugly, ugly jQuery.
Snippet: Notice DIVs are in reverse order
.layer {
position: absolute;
top: 0px;
left: 0px;
height: 400px;
width: 400px;
}
#bottomlayer {
z-index: 10
}
#toplayer {
z-index: 20;
pointer-events: none;
background-color: whit...
MySQL select one column DISTINCT, with corresponding other columns
...terminate.". In practice I've successfully used this kind of queries with ORDER BY clause, for instance you could add ORDER BY id ASC/DESC and MySQL would return consistent results every time you would execute the query. But i would be sure whether anyone should use undocumented features in product...
What's the simplest way to list conflicted files in Git?
... trailing whitespace, so a git diff --check | grep -i conflict might be in order for OP's case
– CCJ
Dec 6 '19 at 0:51
...
How can I do an asc and desc sort using underscore.js?
...
Descending order using underscore can be done by multiplying the return value by -1.
//Ascending Order:
_.sortBy([2, 3, 1], function(num){
return num;
}); // [1, 2, 3]
//Descending Order:
_.sortBy([2, 3, 1], function(num){
re...
What are the differences between ArrayList and Vector?
...rrayList and Vector both implements List interface and maintains insertion order.But there are many differences between ArrayList and Vector classes...
ArrayList -
ArrayList is not synchronized.
ArrayList increments 50% of current array size if number of element exceeds from its capacity.
ArrayLi...
How to find third or nth maximum salary from salary table?
...(
SELECT EmpID, EmpName, EmpSalary,
RN = ROW_NUMBER() OVER (ORDER BY EmpSalary DESC)
FROM dbo.Salary
)
SELECT EmpID, EmpName, EmpSalary
FROM CTE
WHERE RN = @NthRow
share
|
improv...
How to keep keys/values in same order as declared?
I have a dictionary that I declared in a particular order and want to keep it in that order all the time. The keys/values can't really be kept in order based on their value, I just want it in the order that I declared it.
...
What is your most productive shortcut with Vim?
...d of your file as a scratch space). This will have preserved the relative order of all the "foo" lines while having extracted them from the rest of the list. (This would be equivalent to doing something like: 1G!GGmap!Ggrep foo<ENTER>1G:1,'a g/foo'/d (copy the file to its own tail, filter th...