大约有 40,000 项符合查询结果（耗时：0.0581秒） [XML]
Pandas count(distinct) equivalent
...ing pandas as a db substitute as I have multiple databases (oracle, mssql, etc) and I am unable to make a sequence of commands to a SQL equivalent.
...
How to Query an NTP Server using C#?
... {
ct.Token.Register(() => _resultCompletionSource.TrySetCanceled());
socket.MessageReceived += OnSocketMessageReceived;
//The UDP port number assigned to NTP is 123
await socket.ConnectAsync(new HostName("pool.ntp.org"), "123");
u...
How do I use reflection to invoke a private method?
...ore difficult.
It looks like you should just have a DrawItem1, DrawItem2, etc class that override your dynMethod.
share
|
improve this answer
|
follow
|
...
Is it worth using Python's re.compile?
...riginal definition. For example us_phone_number or social_security_number etc.
– Brian M. Sheldon
Oct 3 '18 at 13:53
2
...
Add data annotations to a class generated by entity framework
...an read the rules for validating each field (from a database, config file, etc.) and add validators as need be. It has the added values that your validation is no longer tightly coupled to the model and can be changed without need to even restart the site. Of course it might be overkill for your cas...
Storing Images in PostgreSQL
...m with backing up blobs!), PostgreSQL additional supplied modules, How-tos etc.
use a separate database with DBlink: for original image store, at another (unified/specialized) database. In this case, I prefer bytea, but blob is near the same. Separating database is the best way for a "unified imag...
Should I use encodeURI or encodeURIComponent for encoding URLs?
... are converted to percent-hexadecimal codes. Space to %20, percent to %25, etc. The characters below pass through unchanged.
Here are the characters the functions will NOT convert:
pass_thru = '*-._0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'
encodeURI (pass_thru + '#$&...
Mocking python function based on input arguments
...f you want to preserve Mock's capabilities (assert_called_once, call_count etc):
self.mock.side_effect = {'input1': 'value1', 'input2': 'value2'}.get
share
|
improve this answer
|
Get real path from URI, Android KitKat new storage access framework [duplicate]
...
String sel = MediaStore.Images.Media._ID + "=?";
Cursor cursor = getContentResolver().
query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
column, sel, new String[]{ id }, null);
String filePath = "";
int columnIndex = cursor.getColumnI...
Can I use git diff on untracked files?
...no-index untracked_file_1 untracked_file_2 to get git diff syntax coloring etc. on diffs ... beautiful.
– Colin D Bennett
Sep 30 '13 at 21:56
42
...