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SQL - many-to-many table primary key
...es are read far more often than written. That makes anything you do on the select side far more relevant than anything on the insert side.
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Undefined symbols for architecture arm64
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Just came in here to add to the chorus: selecting YES for BUILD FOR ACTIVE ARCHITECTURES is the best option here.
– Wells
Mar 28 '14 at 20:35
56
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SVN command to delete all locally missing files
...TortoiseSVN, just do a Check for Modifications, sort by the Status column, select all the entries marked missing, right-click to open the context menu, and select Delete. Finally, commit to publish the changes to the repository.
If you are on Windows, but prefer the command-line and enjoy dabbling ...
Best way to check for nullable bool in a condition expression (if …)
...en you are trying to evaluate a nullable bool in linq.
For example:
array.Select(v => v.nullableBool ?? false)
(from v in array where v.nullableBool ?? false)
Is cleaner in my opinion as opposed to:
array.Select(v => v.nullableBool.HasValue ? v.nullableBool.Value : false)
(from v in array wh...
How to get JSON from URL in JavaScript?
...getJSON() function:
$.getJSON('http://query.yahooapis.com/v1/public/yql?q=select%20%2a%20from%20yahoo.finance.quotes%20WHERE%20symbol%3D%27WRC%27&format=json&diagnostics=true&env=store://datatables.org/alltableswithkeys&callback', function(data) {
// JSON result in `data` variab...
Change bundle identifier in Xcode when submitting my first app in IOS
...e project editor.
To set the bundle ID prefix
In the project navigator, select the project and your target to
display the project editor.
Click General and, if necessary, click the disclosure triangle next
to Identity to reveal the settings.
Enter the bundle ID prefix in the “Bundle Identi...
difference between Product Backlog Item and Feature in Team Foundation work item types
...n I want to create a new work item, I'm given a list of work item types to select from, among which are "Product Backlog Item" and "Feature".
...
Eclipse comment/uncomment shortcut?
... Ctrl + / and for multiple line comment you can use Ctrl + Shift + / after selecting the lines you want to comment in java editor.
On Mac/OS X you can use ⌘ + / to comment out single lines or selected blocks.
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Bash: Strip trailing linebreak from output
...ine character you want to remove, you can use 'head' from GNU coreutils to select everything except the last byte. This should be quite quick:
head -c -1 log.txt
Also, for completeness, you can quickly check where your newline (or other special) characters are in your file using 'cat' and the 'sh...
Reorder / reset auto increment primary key
...riable, this is okay: SET @a = @a + 1; For other statements, such as SELECT, you might get the results you expect, but this is not guaranteed. In the following statement, you might think that MySQL will evaluate @a first and then do an assignment second: SELECT @a, @a:=@a+1, ...; However...