大约有 23,000 项符合查询结果（耗时：0.0450秒） [XML]
Alter MySQL table to add comments on columns
...
Script for all fields on database:
SELECT
table_name,
column_name,
CONCAT('ALTER TABLE `',
TABLE_SCHEMA,
'`.`',
table_name,
'` CHANGE `',
column_name,
'` `',
column_name,
'` ',
colu...
How do you make a web application in Clojure? [closed]
...l because side effects are necessary to actually do things, like write database records, download files, post to a REST server, generate images, etc...
– lfalin
Mar 12 '14 at 9:41
...
Why does this assert throw a format exception when comparing structures?
...rivate class MyClass
{
public MyClass(int width, int height)
: base()
{ Width = width; Height = height; }
public int Width { get; set; }
public int Height { get; set; }
}
[TestMethod]
public void TestMethod1()
{
var test1 = new MyClass(0, 0);
var test2 = new MyClass...
How to properly URL encode a string in PHP?
...
Based on what type of RFC standard encoding you want to perform or if you need to customize your encoding you might want to create your own class.
/**
* UrlEncoder make it easy to encode your URL
*/
class UrlEncoder{
pu...
Detect if the app was launched/opened from a push notification
...o:
Determine if the user is opening the app from a push
Update the view based on the push state
Clear the state so that subsequent opens don't return the user to the same position.
The tricky bit is that updating the view has to happen when the application actually becomes active, which is the ...
How to Customize a Progress Bar In Android
...by clipping image with Animation.
A Drawable that clips another Drawable based on this Drawable's current level value. You can control how much the child Drawable gets clipped in width and height based on the level, as well as a gravity to control where it is placed in its overall container. Most ...
'parent.relativePath' points at my com.mycompany:MyProject instead of org.apache:apache - Why?
... meant you should write the correct value for <relativePath> element based on where your parent pom is relative to the current pom.
– mkleint
Jun 16 '11 at 10:18
1
...
Are Java static calls more or less expensive than non-static calls?
...other.
Third: much of the mythos surrounding static versus non-static are based either on very old JVMs (which did not do anywhere near the optimization that Hotspot does), or some remembered trivia about C++ (in which a dynamic call uses one more memory access than a static call).
...
What does .SD stand for in data.table in R
...al-world feel, rather than making up data, let's load some data sets about baseball from Lahman:
library(data.table)
library(magrittr) # some piping can be beautiful
library(Lahman)
Teams = as.data.table(Teams)
# *I'm selectively suppressing the printed output of tables here*
Teams
Pitching = as.d...
What is the meaning and difference between subject, user and principal?
... any Principal could theoretically serve as a primary key on your user database.
– Platinum Azure
Feb 16 '11 at 19:05
3
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