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Surrogate vs. natural/business keys [closed]
... Surrogate keys rarely, if ever, need to be changed because there is no meaning tied to the value.
Convention: Allows you to have a standardized Primary Key column naming convention rather than having to think about how to join tables with various names for their PKs.
Speed: Depending on the PK val...
How to determine when a Git branch was created?
...t commit of the branch having more than 1 child ?
– Manitra Andriamitondra
Nov 10 '11 at 16:14
21
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difference between scope and namespace of ruby-on-rails 3 routing
I can't understand what the difference is between a namespace and a scope in the routing of ruby-on-rails 3.
5 Answers
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How can I add a third button to an Android Alert Dialog?
The API says that the Alert Dialog can have one, two or three buttons, but the SDK only allows for a positive and negative button. How then can I add a third button?
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xcodebuild says does not contain scheme
...lp try and tame some of the chaos that is inherent to dealing with the mechanics of wiring related Xcode projects, build targets, and build configurations together. The workspace itself has its own set of configuration data that describes each of the smaller 'boxes' of data it contains and acts as ...
iPad browser WIDTH & HEIGHT standard
Does anyone know the safest width and height for the BODY when viewing any web page on the iPad? I want to avoid the scrollbars as much as possible.
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How to make jQuery to not round value returned by .width()?
I've searched around and couldn't find this. I'm trying to get the width of a div, but if it has a decimal point it rounds the number.
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DBMS_OUTPUT.PUT_LINE not printing
When executing the following code, it just says the procedure is completed and doesn't print the infomation i want it to (firstName, lastName) and then the other values from the select query in a table below.
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How to determine if a point is in a 2D triangle? [closed]
... grasp if you are new to barycentric coordinates.
– Daniel Rikowski
Jan 12 '10 at 14:51
8
With tr...
git: How to diff changed files versus previous versions after a pull?
When I run "git pull" I often want to know what changed between the last version of a file and the new one. Say I want to know what someone else committed to a particular file.
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