difference

What is the simplest way to find the difference between 2 times in python?

I have 2 time values which have the type datetime.time. I want to find their difference. The obvious thing to do is t1 - t2, but this doesn't work. It works for objects of type datetime.datetime but not for datetime.time. So what is the best way to do this? ...

C# compare algorithms

Hi, Are there any open source algorithms in c# that solve the problem of creating a difference between two text files? It would be super cool if it had some way of highlighting what exact areas where changed in the text document also. ...

Implement symmetric difference in SQL Server?

Here's a problem I've been trying to solve at work. I'm not a database expert, so that perhaps this is a bit sophomoric. All apologies. I have a given database D, which has been duplicated on another machine (in a perhaps dubious manner), resulting in database D'. It is my task to check that database D and D' are in fact exactly iden...

What is the difference between a process and a thread

What is the technical difference between a process and a thread? I get the feeling a word like 'process' is over used and there is also hardware and software threads. How about light-weight processes in languages like Erlang? Is there a definitive reason to use one term over the other? ...

How to find difference between two strings?

I have two strings and would like to display the difference between them. For example, if I have the strings "I am from Mars" and "I am from Venus", the output could be "I am from Venus". (Typically used to show what changed in an audit log, etc.) Is there a simple algorithm for this? I am using C# but I guess a generic algorithm could ...

What is the difference between a 'closure' and a 'lambda'?

Could someone explain? I understand the basic concepts behind them but I often see them used interchangeably and I get confused. And now that we're here, how do they differ from a regular function? ...

Finding the difference in rows in query using sqlite

After a few hours of searching, I'm not getting anything that works with Sqlite. It's driving me nuts. I have an sqlite table that contains prices for various products. It's a snapshot table, so it contains the prices on 5 minute intervals. I would like to write a query that would return the difference in price from one row to the next ...

Finding difference in row count of two tables in MySQL

I have two tables, one stores the products and quantity we have bought, the other stores the sells. The current stock is therefore the sum of all the quantity columns in the bought table minus the number of rows in the sells table. How can this be expressed in MySQL. Remember that there are many different products. EDIT: To make it hard...

Tortoise SVN marks files as different between branches but no differences exist

So my project has a trunk where we make all development changes to. We also have a branch with slightly modified parameters to accommodate another department. We work in batches, and once we are done with a set of changes to the trunk, switch over to the branch and merge all appropriate revisions. This has been going on a while but I hav...

Is there any difference between a GUID and a UUID?

I see these 2 acronyms thrown around, and I was wondering if there are any differences between a GUID and a UUID? ...

c++ STL set difference

Does the C++ STL set data structure have a set difference operator? ...

Differences between C++ and C#/.Net

If asked, how would you describe the differences between C++ and C#/.Net ...

What is difference between And and Andalso in VB.net ?

In Vb.net, What is difference between And and Andalso. Which should use in coding? ...

Time difference in C++

Hi guys, Does anyone know how to calculate time difference in C++ in miliseconds? I used difftime (time.h) but it's not enough precision for what I'm trying to measure. Thanks, in advance. Alejo ...

What is a workflow system?

How can I differentiate a Workflow system from a normal application that automates some work? Are there any specific feature a system must have to be categorized as a workflow system? ...

Highlight the difference between two strings in PHP

Hi, What is the easiest way to highlight the difference between two strings in PHP? I'm thinking along the lines of the Stack Overflow edit history page, where new text is in green and removed text is in red. If there are any pre-written functions or classes available, that would be ideal. Thanks in advance. ...

Difference between 2 numbers

I need the perfect algorithm or C# function to calculate the difference (distance) between 2 decimal numbers. For example the difference between: 100 and 25 is 75 100 and -25 is 125 -100 and -115 is 15 -500 and 100 is 600 Is there a C# function or a very elegant algorithm to calculate this or I have to go and handle every case separate...

How to get time difference in minutes in PHP

How to calculate minute difference between two date-times in PHP? ...

Can an old exported set of files be compared to a subversion repository?

Here is the problem: We have all of our development under subversion, but our beta versions are just mish-mashed bits of exported files that were not all put there at the same time. Or, to put it another way, we make our changes to versioned files, and then when we think we are happy, we manually export them by simply copying them to a d...

What are the differences between PHP and Java?

What are the main differences between PHP and Java that someone proficient in PHP but learning Java should know about? Edit: I mean differences in the syntax of the languages, i.e their data types, how they handle arrays & reference variables, and so forth :) ...