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You can't specify target table for update in FROM clause
... absolutely fine. DELETE FROM t WHERE tableID NOT IN (SELECT viewID FROM t_view); Also I recommend running OPTIMIZE TABLE t; afterwards to reduce the size of the table.
– CodeX
Oct 13 '16 at 11:36
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How does the vim “write with sudo” trick work?
Many of you have probably seen the command that allows you to write on a file that needs root permission, even when you forgot to open vim with sudo:
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What is std::move(), and when should it be used?
...ct, leaving the moved object in an moved from state, therefore not copying all the data. This would be C++-valid.
Try googling for move semantics, rvalue, perfect forwarding.
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How can I view the shared preferences file using Android Studio?
...File Explorer, and browse "/data/data/< name of your package >/shared_prefs/". You will find the XML there... and also you can copy it for inspection.
If you have a non-rooted device it's not possible to do that directly from Android Studio. However, you can access the file with adb shell as ...
How do you use vim's quickfix feature?
...ean much. It means that the shown line of code must be placed in ~/.vimrc (_VIMRC on windows AFAIK) and from the next start of VIM every time the file is saved this command will be invoked. Right?
– Беров
May 28 '18 at 21:06
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How to pass prepareForSegue: an object
...is the same as this line
if ([[segue identifier] isEqualToString:@"YOUR_SEGUE_NAME_HERE"])
{
// Get reference to the destination view controller
YourViewController *vc = [segue destinationViewController];
// Pass any objects to the view controller here, like...
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Why should I avoid using Properties in C#?
...erties, and recommends not to use them. He gave some reason, but I don't really understand. Can anyone explain to me why I should or should not use properties?
In C# 3.0, with automatic properties, does this change?
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What resources exist for Database performance-tuning? [closed]
...tabase, this guide may also help.
http://download.oracle.com/docs/cd/B28359_01/server.111/b28274/toc.htm
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How to remove not null constraint in sql server using query
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or you can do : alter table table_name modify column_name type(30) NULL. 30 being the size of your column type, example: varchar(30)
– nr5
Sep 19 '12 at 18:11
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How do I enter a multi-line comment in Perl? [duplicate]
...ng the Pod section:
=pod
my $object = NotGonnaHappen->new();
ignored_sub();
$wont_be_assigned = 37;
=cut
The quick-and-dirty method only works well when you don't plan to
leave the commented code in the source. If a Pod parser comes along,
your multiline comment is going to show up...