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How to trigger a file download when clicking an HTML button or JavaScript
...ans the page and the file must share the same domain, subdomain, protocol (HTTP vs. HTTPS), and port (if specified). Exceptions are blob: and data: (which always work), and file: (which never works).
proposed_file_name is the filename to save to. If it is blank, the browser defaults to the file's na...
How can I do an UPDATE statement with JOIN in SQL Server?
...assid
where sale.udid = ud.id;
For more info read multiple table update:
http://dev.mysql.com/doc/refman/5.0/en/update.html
UPDATE [LOW_PRIORITY] [IGNORE] table_references
SET col_name1={expr1|DEFAULT} [, col_name2={expr2|DEFAULT}] ...
[WHERE where_condition]
...
How to take backup of a single table in a MySQL database?
...t> -p db_name table_name > table_name.sql
For further reference:
http://www.abbeyworkshop.com/howto/lamp/MySQL_Export_Backup/index.html
Restore
mysql -u <user_name> -p db_name
mysql> source <full_path>/table_name.sql
or in one line
mysql -u username -p db_name < /pat...
Why does a base64 encoded string have an = sign at the end
...
It's padding. From http://en.wikipedia.org/wiki/Base64:
In theory, the padding character is not needed for decoding, since the
number of missing bytes can be calculated from the number of Base64
digits. In some implementations, the padd...
How to select the nth row in a SQL database table?
...of doing it.
A really good site that talks about this and other things is http://troels.arvin.dk/db/rdbms/#select-limit.
Basically, PostgreSQL and MySQL supports the non-standard:
SELECT...
LIMIT y OFFSET x
Oracle, DB2 and MSSQL supports the standard windowing functions:
SELECT * FROM (
SEL...
Make install, but not to default directories?
...IB=/home/my/local/lib
make
make test
make install
* further explanation: https://www.perlmonks.org/?node_id=564720
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PHP Replace last occurrence of a String in a String?
.... $replace . '$2', $subject, 1);
}
UPDATE Slightly more concise version (http://ideone.com/B8i4o):
function str_lreplace($search, $replace, $subject)
{
return preg_replace('~(.*)' . preg_quote($search, '~') . '~', '$1' . $replace, $subject, 1);
}
...
Android: Generate random color on click?
...
I met this and this is my code,May some help
/**
* view-source:http://www.kareno.org/js/colors/ 参考
*Get Random background color and the text color for the background
* @return 0--》background
* 1--》text color
*/
public static int[] getRandomColor() {
Random rando...
Convert an NSURL to an NSString
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Change the color of glyphicons to blue in some- but not at all places using Bootstrap 2
...override the styles with css to change the color and size.
<link href="http://netdna.bootstrapcdn.com/font-awesome/3.2.1/css/font-awesome.css" rel="stylesheet">
CSS
.brown{color:#9b846b}
If we want change the color of icon then just add brown class and icon will turn in brown color. It a...