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how do I query sql for a latest record date for each user
... Careful with this approach: it can return more than one row per user if they have more than one record per date (max(date) would return a date that would join multiple records). To avoid this issue, it would be preferable to use @dotjoe's solution: stackoverflow.com/a/2411763/4406793.
...
How to load images dynamically (or lazily) when users scrolls them into view
...of images.
Plugin
Demo
EDIT: How do these plugins work?
This is a simplified explanation:
Find window size and find the position of all images and their sizes
If the image is not within the window size, replace it with a placeholder of same size
When user scrolls down, and position of image &l...
Is it possible to view RabbitMQ message contents directly from the command line?
...nt
See here:
http://www.rabbitmq.com/plugins.html
And here for the specifics of management.
http://www.rabbitmq.com/management.html
Finally once set up you will need to follow the instructions below to install and use the rabbitmqadmin tool. Which can be used to fully interact with the system...
REDHAT 6.4 X64下ORACLE 11GR2静默安装 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...的IP地址
这个时候系统的网卡默认是没有启动的
输入 ifup eth0 启用网卡 ifconfig
Redhat 初步安装完成。
1.2辅助工具
切换到windows 下准备号SSH工具我的是SecureCRT
输入正确的密码后，链接到服务器。
检查下内存 管方要...
How do I iterate over an NSArray?
... a for-in loop to step through an NSEnumerator, I have found that this nullifies virtually all of the speed advantage of fast enumeration. The reason is that the default NSEnumerator implementation of -countByEnumeratingWithState:objects:count: places only one object in the buffer on each call.
I r...
how to get the one entry from hashmap without iterating
... of obtaining only one Entry<K,V> from HashMap, without iterating, if key is not known.
14 Answers
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CharSequence VS String in Java?
... worry. Android is merely trying to be helpful by allowing you to also specify other CharSequence objects, like StringBuffers.
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Animated GIF in IE stopping
Does anyone know a work around to make animated GIF's continue to be animated after you click a link or submit a form on the page your on in IE? This works fine in other browsers.
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What is an Android PendingIntent?
...o Android. I read the Android Documentation but I still need some more clarification. Can anyone tell me what exactly a PendingIntent is?
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How to create “No Activate” form in Firemonkey
...rks on XE4):
unit NoActivateForm;
interface
uses Fmx.Forms, Fmx.Types
{$IFDEF POSIX}
, Macapi.AppKit
{$ENDIF}
;
type TNoActivateForm = class
private
form: TForm;
{$IFDEF POSIX}
panel: NSPanel;
timer: TTimer; // for simulating mouse hover event
{$ENDIF}
procedure SetPosit...