大约有 30,000 项符合查询结果（耗时：0.0329秒） [XML]
Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?
... are UTF-8?
– antak
Jul 17 '15 at 2:27
1
...
Maximum on http header values?
...
27
No need to write code to get the page size. From a terminal : getconf PAGESIZE
– Ponytech
Mar 11 '15...
How do I use pagination with Django class based generic ListViews?
...ExamListView, self)...?
– cezar
Sep 27 '17 at 10:26
Yes, right! This answer has been edited by Mr. Yacin. Thank you, M...
Simple C example of doing an HTTP POST and consuming the response
...o to send the message the C program needs to:
create a socket
lookup the IP address
open the socket
send the request
wait for the response
close the socket
The send and receive calls won't necessarily send/receive ALL the data you give them - they will return the number of bytes actually sent/r...
How to pass a user defined argument in scrapy spider
...u003cpath fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M25.6622 17.6335C27.8049 17.6335 29.3739 16.9402 30.2537 15.6379C30.8468 14.7755 30.9615 13.5579 30.9615 11.9512V6.59049C30.9615 5.28821 30.4833 4.66231 29.4502 4.66231C28.9913 4.66231 28.4555 4.94978 28.1109 5.50789C27.499 4.86533 26.7335 4....
Which $_SERVER variables are safe?
...u003cpath fill-rule=\"evenodd\" clip-rule=\"evenodd\" d=\"M25.6622 17.6335C27.8049 17.6335 29.3739 16.9402 30.2537 15.6379C30.8468 14.7755 30.9615 13.5579 30.9615 11.9512V6.59049C30.9615 5.28821 30.4833 4.66231 29.4502 4.66231C28.9913 4.66231 28.4555 4.94978 28.1109 5.50789C27.499 4.86533 26.7335 4....
How to test an SQL Update statement before running it?
...e statement like:
UPDATE
wp_history
SET history_by="admin"
WHERE
history_ip LIKE '123%'
You hash UPDATE and SET out for testing, then hash them back in:
SELECT * FROM
#UPDATE
wp_history
#SET history_by="admin"
WHERE
history_ip LIKE '123%'
It works for simple statements.
An additional practic...
Django connection to PostgreSQL: “Peer authentication failed”
...n the other hand, when the HOST is "localhost", it connects via TCP/IP to 127.0.0.1. Likely, your pg_hba.conf is set up to deny ordinary users from connecting through UNIX sockets but allows them over TCP/IP from localhost.
– Jim Garrison
May 1 '13 at 1:05
...
Android: Test Push Notification online (Google Cloud Messaging) [closed]
...y easy way to do this.
Open http://phpfiddle.org/
Paste following php script in box. In php script set API_ACCESS_KEY, set device ids separated by coma.
Press F9 or click Run.
Have fun ;)
<?php
// API access key from Google API's Console
define( 'API_ACCESS_KEY', 'YOUR-API-ACCESS-KEY-GOES-...
process.waitFor() never returns
..., and even deadlock.
Fail to clear the buffer of input stream (which pipes to the output stream of subprocess)
from Process may lead to a subprocess blocking.
Try this:
Process process = Runtime.getRuntime().exec("tasklist");
BufferedReader reader =
new BufferedReader(new InputStreamReade...