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How to truncate a foreign key constrained table?
...L's TRUNCATE being incomplete - truncate isn't supposed to invoke triggers etc. If it did, it would just be the same as DELETE! It's row-agnostic, hence it's unable to perform row-related operations (like invoking triggers or examining foreign keys). It works in the same way in Oracle and Sql Server...
Creating an instance using the class name and calling constructor
...?> clazz = Class.forName(className);
Constructor<?> ctor = clazz.getConstructor(String.class);
Object object = ctor.newInstance(new Object[] { ctorArgument });
That will only work for a single string parameter of course, but you can modify it pretty easily.
Note that the class name has t...
Center content in responsive bootstrap navbar
...mobile display -->
<div class="navbar-header">
...etc
to center the nav, that what i've done:
<div class="container-fluid" id="nav_center">
css:
@media (min-width:768px) { /* don't break navbar on small screen */
#nav_center {
width: 700px /* need to ...
Access denied for user 'test'@'localhost' (using password: YES) except root user
...If you are connecting to the MySQL using remote machine(Example workbench) etc., use following steps to eliminate this error on OS where MySQL is installed
mysql -u root -p
CREATE USER '<<username>>'@'%%' IDENTIFIED BY '<<password>>';
GRANT ALL PRIVILEGES ON * . * TO '<&...
Favorite Visual Studio keyboard shortcuts [closed]
... Ctrl K, D formats the entire document (proper indents, ws cleaned up, etc.) in mine. ?
– John Dunagan
Oct 21 '08 at 20:40
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No mapping found for field in order to sort on in ElasticSearch
... My queries always worked until today without updating any libraries etc. but today I started getting this same error. I now added "ignore_unmapped" : true and it started to work again but strange thing is, what has happened behind the scene! Who knows! Anyway, it works now. +1
...
How do you round to 1 decimal place in Javascript?
...d(12345.6789) // 12346
... and can be used to round to nearest 10 or 100 etc...
round(12345.6789, -1) // 12350
round(12345.6789, -2) // 12300
... and correct handling of negative numbers ...
round(-123.45, 1) // -123.4
round(123.45, 1) // 123.5
... and can be combined with toFixed to format ...
How to extract URL parameters from a URL with Ruby or Rails?
...tion combine URI.parse with CGI.parse (this can be used even if Rails/Rack etc. are not required):
CGI.parse(URI.parse(url).query)
# => {"name1" => ["value1"], "name2" => ["value1", "value2", ...] }
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Converting a UNIX Timestamp to Formatted Date String
... object. It provides excellent support for dates/times including timezones etc
– liquorvicar
Apr 6 '12 at 7:35
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How to avoid 'cannot read property of undefined' errors?
...ects will scale multiple levels of fields (ie. entries.users.messages.date etc., where not all cases have data entered)
– Ari
Feb 8 '13 at 22:23
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