大约有 15,000 项符合查询结果(耗时:0.0209秒) [XML]
Is it possible to GROUP BY multiple columns using MySQL?
...y the rows are sorted.
In your example, you would write
GROUP BY fV.tier_id, f.form_template_id
Meanwhile, the code
GROUP BY f.form_template_id, fV.tier_id
would give similar results, but sorted differently.
share
...
Safely remove migration In Laravel
...teps:
Manually delete the migration file under app/database/migrations/my_migration_file_name.php
Reset the composer autoload files: composer dump-autoload
Relax
If you did run the migration (php artisan migrate), you may do this:
a) Run migrate:rollback - it is the right way to undo the last...
HTML anchor link - href and onclick both?
...ing a clean HTML Structure, you can use this.
//Jquery Code
$('a#link_1').click(function(e){
e . preventDefault () ;
var a = e . target ;
window . open ( '_top' , a . getAttribute ('href') ) ;
});
//Normal Code
element = document . getElementById ( 'link_1' ) ;
element . onClick...
What is a NullPointerException, and how do I fix it?
... doSomething() could be written as:
/**
* @param obj An optional foo for ____. May be null, in which case
* the result will be ____.
*/
public void doSomething(SomeObject obj) {
if(obj == null) {
//do something
} else {
//do something else
}
}
Finally, How to pinpo...
Git cherry pick vs rebase
... /
D---E---F---G master
Cherry-pick:
$ git checkout master -b topic_new
$ git cherry-pick A^..C
You get:
A---B---C topic
/
D---E---F---G master
\
A'--B'--C' topic_new
for more info about git this book has most of it (http://git-scm.com/book)
...
How To Change DataType of a DataColumn in a DataTable?
...newType)
{
using (DataColumn dc = new DataColumn(columnName + "_new", newType))
{
// Add the new column which has the new type, and move it to the ordinal of the old column
int ordinal = dt.Columns[columnName].Ordinal;
dt.Columns.Add(dc);
...
Where do I set my company name?
...
If you want change __MyCompanyName__ in Xcode 4, you can try the following command.
defaults write com.apple.dt.Xcode PBXCustomTemplateMacroDefinitions '{ORGANIZATIONNAME="YourNameHere";}'
Carefully, this writes in the domain, com.apple.dt.Xc...
Difference between assertEquals and assertSame in phpunit?
...ly about an interpreted value, be it by type juggling or an object with an __magic presentation method (__toString() for example).
A good use case for assertSame() is testing a singleton factory.
class CacheFactoryTest extends TestCase
{
public function testThatCacheFactoryReturnsSingletons()
...
How can I use Guzzle to send a POST request in JSON?
... edited Aug 18 at 7:06
Valor_
2,49255 gold badges3939 silver badges8787 bronze badges
answered Mar 7 '14 at 8:56
...
Putting git hooks into repository
...sh
if [ -x $0.local ]; then
$0.local "$@" || exit $?
fi
if [ -x tracked_hooks/$(basename $0) ]; then
tracked_hooks/$(basename $0) "$@" || exit $?
fi
The installation script would move all pre-existing hooks to the side (append .local to their names), and symlink all known hook names to the...
