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How to extract year and month from date in PostgreSQL without using to_char() function?
...6 20:38:40'),
date_part('year', timestamp '2001-02-16 20:38:40')
http://www.postgresql.org/docs/8.0/interactive/functions-datetime.html
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How to display the function, procedure, triggers source code in postgresql?
...en editable CREATE FUNCTION template.
For further reference -> https://www.postgresql.org/docs/9.6/static/app-psql.html
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How to pass the values from one activity to previous activity
...ke SQL syntax, transactions and prepared statements.
Tutorials -- http://www.vogella.com/articles/AndroidSQLite/article.html
B. Shared Preferences
Suppose you want to store username. So there will be now two thing a Key Username, Value Value.
How to store
// Create object of SharedPreferences...
How can I get clickable hyperlinks in AlertDialog from a string resource?
... .setIcon(R.drawable.icon)
.setMessage(Html.fromHtml("<a href=\"http://www.google.com\">Check this link out</a>"))
.create();
d.show();
// Make the textview clickable. Must be called after show()
((TextView)d.findViewById(android.R.id.message)).setMovementMethod(LinkMovementMeth...
android button selector
...;/selector>
For more information i implemented using this link
http://www.blazin.in/2016/03/how-to-use-selectors-for-botton.html
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Difference between git pull and git pull --rebase
...
and merges are how they flow back upwards.
For details refer - http://www.derekgourlay.com/archives/428
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Should one call .close() on HttpServletResponse.getOutputStream()/.getWriter()?
... version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
<session-config>
<session-timeout>
30
...
How to get error message when ifstream open fails
... as of C++11 std::ios_base::failure inherits from system_error (see http://www.cplusplus.com/reference/ios/ios_base/failure/), which contains both the error code and message that strerror(errno) would return.
std::ifstream f;
// Set exceptions to be thrown on failure
f.exceptions(std::ifstream::fa...
How to kill a child process after a given timeout in Bash?
...y installed otherwise use sudo apt-get install coreutils)
timeout 10 ping www.goooooogle.com
If you don't want to download something, do what timeout does internally:
( cmdpid=$BASHPID; (sleep 10; kill $cmdpid) & exec ping www.goooooogle.com )
In case that you want to do a timeout for long...
Decompressing GZip Stream from HTTPClient Response
...onvert.DeserializeObject<ResponseObjectClass>(jsonString);
https://www.dotnetperls.com/decompress
static byte[] Decompress(byte[] gzip)
{
using (GZipStream stream = new GZipStream(new MemoryStream(gzip), CompressionMode.Decompress))
{
const int size = 4096;
byte[] bu...