大约有 47,000 项符合查询结果（耗时：0.0600秒） [XML]
Efficiently updating database using SQLAlchemy ORM
I'm starting a new application and looking at using an ORM -- in particular, SQLAlchemy.
6 Answers
...
What's the difference between session.persist() and session.save() in Hibernate?
Can anyone tell me what's the advantage of persist() vs save() in Hibernate?
10 Answers
...
What does android:layout_weight mean?
...ews. E.g. you have a MapView and a table which should show some additional information to the map. The map should use 3/4 of the screen and table should use 1/4 of the screen. Then you will set the layout_weight of the map to 3 and the layout_weight of the table to 1.
To get it work you also have ...
iOS: How to store username/password within an app?
I have a login-screen in my iOS app.
The username and password will be saved in the NSUserDefaults and be loaded into the login-screen again when you enter the app again (of course, NSUserDefaults are permanent).
...
How to determine whether a Pandas Column contains a particular value
I am trying to determine whether there is an entry in a Pandas column that has a particular value. I tried to do this with if x in df['id'] . I thought this was working, except when I fed it a value that I knew was not in the column 43 in df['id'] it still returned True . When I subset to a data...
How to get package name from anywhere?
...
An idea is to have a static variable in your main activity, instantiated to be the package name. Then just reference that variable.
You will have to initialize it in the main activity's onCreate() method:
Global to the class:
public static String PACKAGE_NAM...
MySQL Query to select data from last week?
Hi I have a table with a date field and some other information.
I want to select all entries from the past week, (week start from Sunday).
...
jQuery get value of selected radio button
...if user has selected a radio button from a radio group. Every radio button in the group share same id.
27 Answers
...
jQuery add image inside of div tag
...
Have you tried the following:
$('#theDiv').prepend('<img id="theImg" src="theImg.png" />')
share
|
improve this answer
|
...
PHP Regex to get youtube video ID?
...get the youtube id out of a url regardless of what other GET variables are in the URL.
19 Answers
...