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Why is IoC / DI not common in Python?
... for a really bad dynamic scripting language with butt-ugly, sometimes XML-based, syntax.
When you program in Python, why would you want to use an ugly, bad scripting language when you have a beautiful, brilliant scripting language at your disposal? Actually, that's a more general question: when you...
design a stack such that getMinimum( ) should be O(1)
... constant extra space and all operations are still O(1).
Stacks which are based instead on linked lists have other places you can borrow a bit from, for example in C the least significant bit of the next pointer, or in Java the type of the objects in the linked list. For Java this does mean there's...
The relationship could not be changed because one or more of the foreign-key properties is non-nulla
...ld entities cannot live alone without a reference to any parent in the database (due to the foreign key constraint). That's basically what the exception says.
Edit
What I would do if child items could be added, updated and deleted:
public void UpdateEntity(ParentItem parent)
{
// Load origin...
MySQL ON vs USING?
...d this is phpMyAdmin run on Linux Mint, version: "4.5.4.1deb2ubuntu2", Database server: "10.2.14-MariaDB-10.2.14+maria~xenial - mariadb.org binary distribution".
I have run SELECT commands using JOIN and USING in both phpMyAdmin and in Terminal (command line), and the ones in phpMyAdmin produce som...
Are class names in CSS selectors case sensitive?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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When to add what indexes in a table in Rails
I have a question about Rails database.
3 Answers
3
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Is GridFS fast and reliable enough for production?
...art of the file.
Modifying the file may affect all chunks and increase database load
If your file system is growing up, you will have to decide to shard the gridfs. Be careful! Consistence is not guaranteed when sharding is initializing!
If you think about read loaded project - consider loading th...
Hg: How to do a rebase like git's rebase
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VonC has the answer you're looking for, the Rebase Extension. It is, however, worth spending a second or two thinking about why neither mq nor rebase are enabled by default in mercurial: because mercurial is all about indelible changesets. When I work in the manner you...
Configuring Log4j Loggers Programmatically
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How to swap files between windows in VIM?
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