大约有 40,000 项符合查询结果（耗时：0.0456秒） [XML]
Should I use the datetime or timestamp data type in MySQL?
...o with the native format. You can do calculations within MySQL that way
("SELECT DATE_ADD(my_datetime, INTERVAL 1 DAY)") and it is simple to change the format of the value to a UNIX timestamp ("SELECT UNIX_TIMESTAMP(my_datetime)") when you query the record if you want to operate on it with PHP.
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Set transparent background using ImageMagick and commandline prompt
...background color. I just flood fill the background with transparency, then select the alpha channel and blur it and remove half of the blurred area using -level 50x100%. Then turn back on all the channels and flatten it against the brown color. The -blur 0x1 -level 50x100% acts to antialias the bou...
Android selector & text color
...or/button_dark_text.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"
android:color="#000000" /> <!-- pressed -->
<item android:state_focused="true"
...
Liquibase lock - reasons?
...ONTINUE">
<sqlCheck expectedResult="0">
select count(*) from user_sequences where sequence_name = 'SEQUENCE_NAME_SEQ';
</sqlCheck>
</preConditions>
<createSequence sequenceName="SEQUENCE_NAME_SEQ"/>
</changeSet>
Lockd...
CSS: background image on background color
I have panel which I colored blue if this panel is being selected (clicked on it). Additionally, I add a small sign ( .png image) to that panel, which indicates that the selected panel has been already selected before.
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How do you auto format code in Visual Studio?
...
To format a selection: Ctrl+K, Ctrl+F
To format a document: Ctrl+K, Ctrl+D
See the pre-defined keyboard shortcuts. (These two are Edit.FormatSelection and Edit.FormatDocument.)
Note for OS X
On OS X use the CMD ⌘ key, not Ctrl:
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Where is the warnings screen option in Android Studio?
...bar, you click Analyze -> Inspect Code; then in the window that pops up select how much of your project you want to inspect (I usually do Whole Project, but you might want to select a specific module), then click okay.
Android Studio will work for a bit, then the inspection window will pop up f...
Folder is locked and I can't unlock it
...
Right click on your Subversion working directory folder, and select TortoiseSVN->Clean Up from the Context Menu. This will recurse it's way through your working directory and cleanup any incomplete actions, remove the local locks (which is different from using Subversion locking of ...
Connect to a heroku database with pgadmin
...ase (postgres instance in Heroku), do the following:
Login to Heroku, and select the application in which you have the database
Select the Resources tab and then click on "Heroku Postgres Ad-on" (see below). This will open up a new tab.
Select the Settings tab and then click on "View Credential...
run main class of Maven project [duplicate]
...d target dirs.
The script search for classes with main method, offering a select to choose one (Example with mavenized JMeld project)
$ mvnexec
1) org.jmeld.ui.JMeldComponent
2) org.jmeld.ui.text.FileDocument
3) org.jmeld.JMeld
4) org.jmeld.util.UIDefaultsPrint
5) org.jmeld.util.PrintPropert...