大约有 47,000 项符合查询结果（耗时：0.0777秒） [XML]
Get first day of week in SQL Server
...ome sensible logic built in to round up or down:
SELECT DATEDIFF(YEAR, '2010-01-01', '2011-12-31');
SELECT DATEDIFF(YEAR, '2010-12-31', '2011-01-01');
To answer how to get a Sunday:
If you want a Sunday, then pick a base date that's not a Monday but rather a Sunday. For example:
DECLARE @dt DAT...
How to get cumulative sum
...mple
Output
| ID | SOMENUMT | SUM |
-----------------------
| 1 | 10 | 10 |
| 2 | 12 | 22 |
| 3 | 3 | 25 |
| 4 | 15 | 40 |
| 5 | 23 | 63 |
Edit: this is a generalized solution that will work across most db platforms. When there is a better solution availa...
Selecting an element in iFrame jQuery
...e array.
– McKayla
Jun 11 '11 at 16:10
Thanks for the willingness to help. But this doesn't seem to work.
...
Shell script to delete directories older than n days
... will do it recursively for you:
find /path/to/base/dir/* -type d -ctime +10 -exec rm -rf {} \;
Explanation:
find: the unix command for finding files / directories / links etc.
/path/to/base/dir: the directory to start your search in.
-type d: only find directories
-ctime +10: only consider the...
Evaluate expression given as a string
...to change the string into an expression:
> eval(parse(text="5+5"))
[1] 10
> class("5+5")
[1] "character"
> class(parse(text="5+5"))
[1] "expression"
Calling eval() invokes many behaviours, some are not immediately obvious:
> class(eval(parse(text="5+5")))
[1] "numeric"
> class(eva...
Calculating a directory's size using Python?
... |
edited May 23 at 16:10
Acumenus
35.7k1111 gold badges9999 silver badges9494 bronze badges
answered...
How to split a dos path into its components in Python
...
answered Jul 2 '10 at 17:01
please delete meplease delete me
...
Compare DATETIME and DATE ignoring time portion
...
pankajpankaj
1091010 bronze badges
...
How to apply a patch generated with git format-patch?
...
answered Feb 12 '10 at 7:04
VonCVonC
985k405405 gold badges33953395 silver badges39913991 bronze badges
...
How do I make the scrollbar on a div only visible when necessary?
...fy max-height
– Black
Jul 12 '18 at 10:30
1
overflow-y doesn't need max-height. I never used max-...