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Difference between filter and filter_by in SQLAlchemy
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Be careful when using .filter. a query like id=12345, query(users).filter(id == id) will not filter on users.id. Instead, it will evaluate id == id as True and return all users. You need to use .filter(users.id == id) (as demoed above). I made this mistake earlier today.
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HuaweiCloud 拓展：App接入华为云（AppGallery Connect）BaaS · App Inventor 2 中文网
...据库、云存储和云函数能力。
.aix 拓展下载：
cn.fun123.HuaweiCloud.aix
重要：为什么是“云函数网关式”
App Inventor 生成的是 Android 应用，端侧只能走 HTTP，无法使用华为 HarmonyOS 原生的 Cloud Foundation Kit SDK。而 ...
Flatten nested dictionaries, compressing keys
...stance(dd, dict) else { prefix : dd }
Test:
In [2]: flatten_dict({'abc':123, 'hgf':{'gh':432, 'yu':433}, 'gfd':902, 'xzxzxz':{"432":{'0b0b0b':231}, "43234":1321}}, '.')
Out[2]:
{'abc': 123,
'gfd': 902,
'hgf.gh': 432,
'hgf.yu': 433,
'xzxzxz.432.0b0b0b': 231,
'xzxzxz.43234': 1321}
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Split string on the first white space occurrence
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Dan Dascalescu
98.3k3636 gold badges263263 silver badges333333 bronze badges
answered Aug 24 '17 at 8:10
Cliff Stanf...
Definitive way to trigger keypress events with jQuery
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if (!e) return '';
var event2key = {
'96':'0', '97':'1', '98':'2', '99':'3', '100':'4', '101':'5', '102':'6', '103':'7', '104':'8', '105':'9', // Chiffres clavier num
'48':'m0', '49':'m1', '50':'m2', '51':'m3', '52':'m4', '53':'m5', '54':'m6', '55':'m7', '56':'m8', '57':'m9'...
Sort an array in Java
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int[] array = {2, 3, 4, 5, 3, 4, 2, 34, 2, 56, 98, 32, 54};
for (int i = 0; i < array.length; i++) {
for (int j = 0; j < array.length; j++) {
if (array[i] < array[j]) {
int temp = array[i];
array[i] = array[j];
arr...
How to measure time taken by a function to execute
...returns the number of microseconds in the fractional (e.g. a value of 1000.123 is 1 second and 123 microseconds).
now() is monotonically increasing. This is important as Date.getTime() can possibly jump forward or even backward on subsequent calls. Notably, if the OS's system time is updated (e.g....
How to check whether mod_rewrite is enable on server?
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98
To check if mod_rewrite module is enabled, create a new php file in your root folder of your W...
Any recommendations for a CSS minifier? [closed]
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98
The YUI Compressor is fantastic. It works on JavaScript and CSS. Check it out.
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Convert Rows to columns using 'Pivot' in SQL Server
..., 212),
(105, 2, 78),
(109, 2, 97),
(105, 3, 60),
(102, 3, 123),
(101, 3, 220),
(109, 3, 87);
If your values are known, then you will hard-code the query:
select *
from
(
select store, week, xCount
from yt
) src
pivot
(
sum(xcount)
for week in ([1], [2], [3])
) pi...