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PostgreSQL create table if not exists
In a MySQL script you can write:
6 Answers
6
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How can I resize an image dynamically with CSS as the browser width/height changes?
I wonder how I could make an image resize along with the browser window, here is what I have done so far (or download the whole site in a ZIP ).
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Correct use of flush() in JPA/Hibernate
I was gathering information about the flush() method, but I'm not quite clear when to use it and how to use it correctly. From what I read, my understanding is that the contents of the persistence context will be synchronized with the database, i. e. issuing outstanding statements or refreshing enti...
SQLite select where empty?
In SQLite, how can I select records where some_column is empty?
Empty counts as both NULL and "".
4 Answers
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Returning a file to View/Download in ASP.NET MVC
I'm encountering a problem sending files stored in a database back to the user in ASP.NET MVC. What I want is a view listing two links, one to view the file and let the mimetype sent to the browser determine how it should be handled, and the other to force a download.
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Left align two graph edges (ggplot)
I'm using ggplot and have two graphs that I want to display on top of each other. I used grid.arrange from gridExtra to stack them. The problem is I want the left edges of the graphs to align as well as the right edges regardless of axis labels. (the problem arises because the labels of one gra...
Show hide fragment in android
I am developing application which contains 2 fragments and i want to show hide according to my need. Following code has simple example of my problem.
This simple Fragmentactivity contains 1 button and one listfragment.
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Protected methods in Objective-C
What is the equivalent to protected methods in Objective-C?
I want to define methods which only the derived classes may call/implement.
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使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
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使用App Inventor扩展实现多点触控：Rotation Detector
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Android: How to change CheckBox size?
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You just need to set the related drawables and set them in the checkbox:
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="new checkbox"
android:background="@drawable/my_checkbox_background"
android:button="...