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How to add “on delete cascade” constraints?
...rop the foreign key,
add a foreign key with on delete cascade, and finally
commit the transaction
Repeat for each foreign key you want to change.
But PostgreSQL has a non-standard extension that lets you use multiple constraint clauses in a single SQL statement. For example
alter table public.sc...
ImportError: No module named MySQLdb
...utorial to make a login page for my web application.
http://code.tutsplus.com/tutorials/intro-to-flask-signing-in-and-out--net-29982
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What size do you use for varchar(MAX) in your parameter declaration?
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Can I embed a custom font in an iPhone application?
...e is an ongoing thread on Apple Developer Forums:
https://devforums.apple.com/thread/37824 (login required)
And here's an excellent and simple 3 steps tutorial on how to achieve this (broken link removed)
Add your custom font files into your project using Xcode as a resource
Add a key to your In...
Hyphenated html attributes with asp.net mvc
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Updating address bar with new URL without hash or reloading the page
...afari, FF4+, and IE10pp3+! (From David Murdoch's answer to stackoverflow.com/questions/824349/… )
– Zach Lysobey
Dec 19 '11 at 17:48
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What are the “loose objects” that the Git GUI refers to?
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An object (blobs, trees, and commits) with SHA say - 810cae53e0f622d6804f063c04a83dbc3a11b7ca will be stored at
.git/objects/81/0cae53e0f622d6804f063c04a83dbc3a11b7ca
( the split in first two characters to improve performance of the File system as no...
Minimum and maximum date
...8640000000000000), which is Tuesday, April 20th, 271,821 BCE (BCE = Before Common Era, e.g., the year -271,821).
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Custom dealloc and ARC (Objective-C)
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When using ARC, you simply do not call [super dealloc] explicitly - the compiler handles it for you (as described in the Clang LLVM ARC document, chapter 7.1.2):
- (void) dealloc
{
[observer unregisterObject:self];
// [super dealloc]; //(provided by the compiler)
}
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Can I use a function for a default value in MySql?
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@See stackoverflow.com/questions/6280789/… for populating UUIDs in existing rows.
– Sam Barnum
Oct 22 '13 at 17:09
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