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Nullable Foreign Key bad practice?
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Using NULL would be a good way to clean up incomplete orders:
SELECT * FROM `orders`
WHERE `started_time` < (UNIX_TIMESTAMP() + 900) AND `customer_id` IS NULL
The above would show orders older than 15 minutes without a related customer ID.
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I need to store postal codes in a database. How big should the column be?
...nce a block on one side of the street. To find a broader region, you would select the first half of the postal code. Having this information in a separate table really won't help anything and would be more complicated to maintain.
– RevNoah
Dec 2 '13 at 17:08
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How to view the assembly behind the code using Visual C++?
...C++ -> Output Files -> ASM List Location and fill in file name. Also select "Assembly Output" to "Assembly With Source Code".
Compile the program and use any third-party debugger. You can use OllyDbg or WinDbg for this. Also you can use IDA (interactive disassembler). But this is hardcore way ...
How can I launch multiple instances of MonoDevelop on the Mac?
...e a solution already open, and the checkbox only appears when you actually select a solution or project in the dialog.
– Mikayla Hutchinson
Oct 14 '10 at 23:08
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Ruby on Rails vs ASP.NET MVC 3 for a .NET Guy? [closed]
I am very new to RoR and I want to select between APS.NET MVC3 and RoR. C# is sure easier for me as I have been doing it for so long but I am wondering if there is any point to consider using RoR over .MVC to develop a real world website?
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How can I transition height: 0; to height: auto; using CSS?
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You can further refine it by selecting all child elements with * and applying other changes. Buttons should've been affected by my above code, however, if they were correctly styled with em.
– Steven Vachon
Oct 24 '...
Neo4j - Cypher vs Gremlin query language
...tp://docs.sqlalchemy.org/en/rel_0_7/core/tutorial.html#intro-to-generative-selects to know what I mean.)
This seems to be a bit more tricky with Cypher.
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Using Git, show all commits that are in one branch, but not the other(s)
...h a diagram illustration https://git-scm.com/book/en/v2/Git-Tools-Revision-Selection#Commit-Ranges
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vs2008编译boost详细步骤 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
... msvc-10.0: VS2010
variant=debug|release Select the build variant
link=static|shared Whether to build static or shared libraries
threading=single|multi Whether to build single or multithreaded binaries
runtime-link=static|shared ...
MVC Vs n-tier architecture
...esn't make sense to use the Controller for updates and inserts but not for selects and filters, and I don't see the point of separation of concerns only to bind the view to the model anyway! Conclusion - MVC is another one of those obfuscations created by .... have a guess. I don't recall 3-tier eve...