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How to change current working directory using a batch file
...red Sep 12 '14 at 12:07
stingray_stingray_
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What is the dual table in Oracle?
...this wikipedia article may help clarify.
http://en.wikipedia.org/wiki/DUAL_table
The DUAL table is a special one-row
table present by default in all Oracle
database installations. It is suitable
for use in selecting a pseudocolumn
such as SYSDATE or USER The table has
a single VARCHAR...
How do you set your pythonpath in an already-created virtualenv?
... it restored to its original value on deactivate, you could add
export OLD_PYTHONPATH="$PYTHONPATH"
before the previously mentioned line, and add the following line to your bin/postdeactivate script.
export PYTHONPATH="$OLD_PYTHONPATH"
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In mongoDb, how do you remove an array element by its index?
...spective. Here is the code:
var update = {};
var key = "ToBePulled_"+ new Date().toString();
update['feedback.'+index] = key;
Venues.update(venueId, {$set: update});
return Venues.update(venueId, {$pull: {feedback: key}});
Hopefully mongo will address this, perhaps by extendin...
Cannot create an array of LinkedLists in Java…?
...new LinkedList<String>();
No any warnings. NetBeans 6.9.1, jdk1.6.0_24
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What is the correct way to get a subarray in Scala?
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An example of extracting specific columns from a 2D Scala Array (original_array):
import scala.collection.mutable.ArrayBuffer
val sub_array = ArrayBuffer[Array[String]]()
val columns_subset: Seq[String] = Seq("ColumnA", "ColumnB", "ColumnC")
val columns_original = original_array(0)
for (column_...
URLWithString: returns nil
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Use This Function if you deal with file saved on file manager.
NSURL *_url = [NSURL fileURLWithPath:path];
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“#include” a text file in a C program as a char[]
...x6c, 0x6c, 0x6f, 0x20, 0x77, 0x6f, 0x72, 0x6c, 0x64, 0x0a
};
unsigned int a_len = 12;
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File Explorer in Android Studio
... files should be in:
DDMS-> File Explorer ->data -> data -> MY_PACKAGE_NAME -> shared_prefs -> YOUR_PREFERENCE_NAME.xml
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How to grep a text file which contains some binary data?
... Yes, except that this won't work on OSX unless you do the following: LC_ALL="C" grep -a
– Chris Stratton
Feb 10 '19 at 18:05
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