大约有 41,400 项符合查询结果（耗时：0.0908秒） [XML]
Turning a Comma Separated string into individual rows
...9, '18,20,22'
INSERT Testdata SELECT 2, 8, '17,19'
INSERT Testdata SELECT 3, 7, '13,19,20'
INSERT Testdata SELECT 4, 6, ''
INSERT Testdata SELECT 9, 11, '1,2,3,4'
The query
;WITH tmp(SomeID, OtherID, DataItem, String) AS
(
SELECT
SomeID,
OtherID,
LEFT(String, CHAR...
How to delete (not cut) in Vim?
...
133
Use the "black hole register", "_ to really delete something: "_d.
Use "_dP to paste something ...
Angular.js: How does $eval work and why is it different from vanilla eval?
...
3 Answers
3
Active
...
Is there type Long in SQLite?
...he SQLite docs
INTEGER. The value is a signed integer, stored in 1, 2, 3, 4, 6, or 8 bytes depending on the magnitude of the value.
Since long is 8 byte and INTEGER can also save values of 8 bytes, you can use INTEGER.
...
How do I find the number of arguments passed to a Bash script?
...lzbankzsalzbank
8,95411 gold badge2222 silver badges3838 bronze badges
37
...
Convert int to string?
...
answered Jun 21 '10 at 3:15
Anthony PegramAnthony Pegram
111k2424 gold badges200200 silver badges240240 bronze badges
...
String concatenation in MySQL
...
283
MySQL is different from most DBMSs use of + or || for concatenation. It uses the CONCAT function...
Reset other branch to current without a checkout
...
3 Answers
3
Active
...
Numpy first occurrence of value greater than existing value
...nce are returned.") and doesn't save another list.
In [2]: N = 10000
In [3]: aa = np.arange(-N,N)
In [4]: timeit np.argmax(aa>N/2)
100000 loops, best of 3: 52.3 us per loop
In [5]: timeit np.where(aa>N/2)[0][0]
10000 loops, best of 3: 141 us per loop
In [6]: timeit np.nonzero(aa>N/2)[0...
Django - what is the difference between render(), render_to_response() and direct_to_template()?
...])
render() is a brand spanking new shortcut for render_to_response in 1.3 that will automatically use RequestContext that I will most definitely be using from now on.
2020 EDIT: It should be noted that render_to_response() was removed in Django 3.0
https://docs.djangoproject.com/en/1.8/topics...