大约有 45,000 项符合查询结果（耗时：0.0546秒） [XML]
Kill a postgresql session/connection
...onnections:
REVOKE CONNECT ON DATABASE dbname FROM PUBLIC, username;
If you're using Postgres 8.4-9.1 use procpid instead of pid
SELECT
pg_terminate_backend(procpid)
FROM
pg_stat_activity
WHERE
-- don't kill my own connection!
procpid <> pg_backend_pid()
-- don...
How to change the style of alert box?
... functionality.
var ALERT_TITLE = "Oops!";
var ALERT_BUTTON_TEXT = "Ok";
if(document.getElementById) {
window.alert = function(txt) {
createCustomAlert(txt);
}
}
function createCustomAlert(txt) {
d = document;
if(d.getElementById("modalContainer")) return;
mObj = d.g...
How to insert newline in string literal?
... of course but I meant avoiding using Environment.NewLine, my question was if there is '/newline' literal.
– Captain Comic
Nov 3 '10 at 9:46
...
Difference between getContext() , getApplicationContext() , getBaseContext() and “this”
What is the difference between getContext() , getApplicationContext() , getBaseContext() , and " this "?
8 Answers
...
Maven artifact and groupId naming
..., I want to use well-established conventions for finding groupId and artifactId , but I can't find any detailed conventions (there are some, but they don't cover the points I'm wondering about).
...
Execute command on all files in a directory
...
If no files exist in /dir/, then the loop still runs once with a value of '*' for $file, which may be undesirable. To avoid this, enable nullglob for the duration of the loop. Add this line before the loop shopt -s nullglob ...
How to install multiple python packages at once using pip
...oing it but i didn't find it neither here nor on google.
So i was curious if there is a way to install multiple packages using pip.
Something like:
...
“continue” in cursor.forEach()
...tions in the beginning of each forEach iteration and then skip the element if I don't have to do the operation on it so I can save some time.
...
How to validate date with format “mm/dd/yyyy” in JavaScript?
...
function isValidDate(dateString)
{
// First check for the pattern
if(!/^\d{1,2}\/\d{1,2}\/\d{4}$/.test(dateString))
return false;
// Parse the date parts to integers
var parts = dateString.split("/");
var day = parseInt(parts[1], 10);
var month = parseInt(parts[0], ...
Rails :dependent => :destroy VS :dependent => :delete_all
...
The difference is with the callback.
The :delete_all is made directly in your application and deletes by SQL :
DELETE * FROM users where compagny_id = XXXX
With the :destroy, there is an instantiation of all of your children. ...