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How do I list all tables in a schema in Oracle SQL?
...on't need distinct, that's true; however, owner, object_name is not unique by any means in dba_objects; Package Bodies and Packages both appear in that view, and Tables and Indexes are in different namespaces.
– Adam Musch
Aug 20 '13 at 20:59
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How to convert a char to a String?
....toString();
which is less efficient because the StringBuilder is backed by a char[] (over-allocated by StringBuilder() to 16), only for that array to be defensively copied by the resulting String.
String.valueOf(char) "gets in the back door" by wrapping the char in a single-element array and pas...
Hidden Features of Java
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Double Brace Initialization took me by surprise a few months ago when I first discovered it, never heard of it before.
ThreadLocals are typically not so widely known as a way to store per-thread state.
Since JDK 1.5 Java has had extremely well implemented and...
How to disable editing of elements in combobox for c#?
... it look 3D and sometimes its just plain ugly.
You can prevent user input by handling the KeyPress event of the ComboBox like this.
private void ComboBox1_KeyPress(object sender, KeyPressEventArgs e)
{
e.Handled = true;
}
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Remove or uninstall library previously added : cocoapods
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Since the accepted answer's side effects have been removed by a script written by Kyle Fuller - deintegrate, I'll post the proper workflow here:
Install clean:
$ sudo gem install cocoapods-clean
Run deintegrate in the folder of the project:
$ pod deintegrate
Clean:
$ pod clea...
ImportError: DLL load failed: %1 is not a valid Win32 application. But the DLL's are there
...unexpected "cv2.pyd" file in an Anaconda DLL directory that wasn't touched by multiple uninstall/install attempts. Python was looking there first and not finding my good installation. I deleted that cv2.pyd file and tried imp.find_module("cv2") again and python immediately found the right file and c...
data.frame rows to a list
I have a data.frame which I would like to convert to a list by rows, meaning each row would correspond to its own list elements. In other words, I would like a list that is as long as the data.frame has rows.
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Where did the name `atoi` come from?
... but in this listing of man pages from Third Edition Unix (1973) collected by Dennis Ritchie himself, it does contain the line:
atoi(III): convert ASCII to integer
In fact, even the first edition Unix (ca 1971) man pages list atoi as meaning Ascii to Integer.
So even if there isn't any docum...
Java abstract interface
...abstract interface?
No, same rules apply. The method must be implemented by any (concrete) implementing class.
If abstract is obsolete, why is it included in Java? Is there a history for abstract interface?
Interesting question. I dug up the first edition of JLS, and even there it says "This...
Python matplotlib multiple bars
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Define "messes up"? The X labels overlapping may be fixed by using autofmt_xdate(), which auto-rotates the labels.
– John Lyon
Jan 11 '13 at 3:49
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