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Postgresql: Scripting psql execution with password
...ve/libpq-envars.html
There is no option to provide the password as a command line argument because that information is often available to all users, and therefore insecure. However, in Linux/Unix environments you can provide an environment variable for a single command like this:
PGPASSWORD=your...
Android draw a Horizontal line between views
...ver gray colored Line between TextView & ListView
<TextView
android:id="@+id/textView1"
style="@style/behindMenuItemLabel1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="1dp"
android:text="FaceBook Feeds" />
...
Why is Scala's immutable Set not covariant in its type?
...nt hinges around "the concept behind sets as functions" - could this be expanded upon? For example, what advantages does "a set as a function" give me that a "set as a collection" not? Is it worth losing the use of that covariant type?
– oxbow_lakes
Mar 24 '09 ...
How do I get the MIN() of two fields in Postgres?
...
LEAST(a, b):
The GREATEST and LEAST functions select the largest or smallest value from a list of any number of expressions. The expressions must all be convertible to a common data type, which will be the type of the result (see Section 10.5 for deta...
Real-world applications of zygohistomorphic prepromorphisms
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Sharon Curtis and Shin-Cheng Mu have a Functional Pearl using zygomorphisms to find maximally dense segments (a generalization of maximum segment sums). Zygomorphisms are seemingly a good fit for sliding window problems once you are accust...
List all the files that ever existed in a Git repository
...eaching me a bit more in the comments, this version has a shorter pipeline and gives git more opportunity to get things right.
git log --pretty=format: --name-only --diff-filter=A | sort -u
share
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Explicit specialization in non-namespace scope [duplicate]
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incompliant in this case: as always :) ? Templates and VC++ don't mix that well :/
– Matthieu M.
Jun 16 '10 at 11:21
10
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How to copy a java.util.List into another java.util.List
...y otherList from another thread, then you may want to make that otherList (and even newList) a CopyOnWriteArrayList, for instance -- or use a lock primitive, such as ReentrantReadWriteLock to serialize read/write access to whatever lists are concurrently accessed.
...
Click Event on UIImageView programmatically in ios
...zer drag it to your controller.
Now it will display in "Document outline" and header of view controller xib.
Drag gesture to UILable
create IBAction method in header file
Now drag it from handler to gesture icon in xib
...
Java enum - why use toString instead of name
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name() is a "built-in" method of enum. It is final and you cannot change its implementation. It returns the name of enum constant as it is written, e.g. in upper case, without spaces etc.
Compare MOBILE_PHONE_NUMBER and Mobile phone number. Which version is more readable? I...