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How do I automatically update a timestamp in PostgreSQL
...tamp
)
Note that the value for that column can explicitly be overwritten by supplying a value in the INSERT statement. If you want to prevent that you do need a trigger.
You also need a trigger if you need to update that column whenever the row is updated (as mentioned by E.J. Brennan)
Note tha...
How to fire AJAX request Periodically?
...ght a bit more advanced technique that I learned from this excellent video by Paul Irish: http://paulirish.com/2010/10-things-i-learned-from-the-jquery-source/
For periodic tasks that might end up taking longer than the repeat interval (like an HTTP request on a slow connection) it's best not to us...
How to prepend a string to a column value in MySQL?
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
How do I measure the execution time of JavaScript code with callbacks?
...
>I want to know how to measure the time taken by these db insert operations. --- console.timeEnd("dbsave") just outputs to console the timing. You can't use that further and is less flexible. If you need the actual timing value, like in original question, you cant use ...
使用TokuMX配置Replica Set集群 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...，可加参数指定ip、端口，默认本机27017）
config={
"_id" : "ReplSetName",
"members" : [
{"_id" : 0, "host" : "172.16.88.97:27017",priority:2},
{"_id" : 1, "host" : "172.16.88.97:27018",priority:1},
{"_id" : 2, "host" : "172.16.88.97:27019",arbite...
How can I convert a comma-separated string to an array?
... your array as integers and not as strings after splitting the string, consider converting them into such.
var str = "1,2,3,4,5,6";
var temp = new Array();
// This will return an array with strings "1", "2", etc.
temp = str.split(",");
Adding a loop like this,
for (a in temp ) {
temp[a] = parse...
XML attribute vs XML element
...probably anything that is computer generated. If the BarCode was generated by a human then it should not be an attribute.
– John Ballinger
Jul 5 '09 at 12:06
39
...
The 'packages' element is not declared
...ly for nuget). But since the file is auto-generated is safe (and only used by nuget - which handles the XML just fine) it is perfectly fine to ignore the warnings.
– Joel
Sep 24 '14 at 11:54
...
ViewBag, ViewData and TempData
...ic wrapper around ViewData and exists only in ASP.NET MVC 3.
This being said, none of those two constructs should ever be used. You should use view models and strongly typed views. So the correct pattern is the following:
View model:
public class MyViewModel
{
public string Foo { get; set; }
...
How to programmatically show next view in ViewPager?
... You might need it. For instance, if the change is triggered by a click, you could use (nextBt.getId() == view.id) to know what caused it
– Tomas Wolf
Oct 9 '14 at 16:32
...