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Check if null Boolean is true results in exception
...answered Jun 12 '12 at 21:42
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Oracle PL/SQL - How to create a simple array variable?
... I can't find any collections in Oracle PL/SQL that uses pure memory, they all seem to be associated with tables. I'm looking to do something like this in my PL/SQL (C# syntax):
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Why doesn't delete set the pointer to NULL?
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Stroustrup himself answers. An excerpt:
C++ explicitly allows an
implementation of delete to zero out
an lvalue operand, and I had hoped
that implementations would do that,
but that idea doesn't seem to have
become popular with implementers.
But the main issue he rais...
Version of SQLite used in Android?
...rt it.
Note: if you want your app to use the same version of SQLite across all Android versions, consider using this 3rd party SQLite support library.
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Text inset for UITextField?
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I suggest to call [super textRectForBounds:bounds] and [super editingRectForBounds:bounds] before calling CGRectInset(bounds,10, 10). This will fix the clear button overlay issue.
– mrvincenzo
Sep 27 ...
vim deleting backward tricks
...pace)
db deletes current to beginning of current word
Read this to learn all the things you can combine with the 'd' command.
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cocktail party algorithm SVD implementation … in one line of code?
...he cocktail party problem given the audio sources are recorded by two spatially separated microphones:
2 Answers
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How to rename files and folder in Amazon S3?
...u can use the --dryrun flag to check the output of the command without actually running it.
– kmundnic
Aug 6 '19 at 21:14
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How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?
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Assuming you've used home-brew to install and upgrade Postgres, you can perform the following steps.
Stop current Postgres server:
launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
Initialize a new 10.1 database:
initdb /usr/local/var/pos...
Rename a class in Xcode: Refactor… is grayed out (disabled). Why?
...00%, even in cases where Apple's code fails)
use shift-command-f to find all uses of the file
select "replace" in the search settings
"replace-all"
do the following for the .h file, and REPEAT IT FOR THE .m FILE (if you have one):
right click the original file, and select "show in finder"
delete ...