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How do I rename a column in a SQLite database table?
...nd also within all indexes, triggers, and views that reference the column. If the column name change would result in a semantic ambiguity in a trigger or view, then the RENAME COLUMN fails with an error and no changes are applied.
Image source: https://www.sqlite.org/images/syntax/alter-table-stm...
Can I use complex HTML with Twitter Bootstrap's Tooltip?
If I check official documentation , I can see a property called HTML:
5 Answers
5
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Does it make sense to do “try-finally” without “catch”?
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This is useful if you want the currently executing method to still throw the exception while allowing resources to be cleaned up appropriately. Below is a concrete example of handling the exception from a calling method.
public void yourOt...
Git stash twice
...f8bb Commit message A
stash@{1}: WIP on master: 50cf63b Commit message B
If you made two stashes, then just call git stash pop twice. As opposed to git stash apply, pop applies and removes the latest stash.
You can also reference a specific stash, e.g.
git stash show stash@{1}
or
git stash a...
Default argument values in JavaScript functions [duplicate]
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In javascript you can call a function (even if it has parameters) without parameters.
So you can add default values like this:
function func(a, b){
if (typeof(a)==='undefined') a = 10;
if (typeof(b)==='undefined') b = 20;
//your code
}
and then you can ca...
How to get Core Data object from specific Object ID?
...rror **)error
Fetches the object from the store that has that ID, or nil if it doesn't exist.
(Be aware: there are two methods on NSManagedObjectContext with similar-seeming names that tripped me up. To help keep them straight, here's what the other two do:
-(NSManagedObject *)objectWithID:(NSMa...
Why Android Studio says “Waiting For Debugger” if am NOT debugging?
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I don't know if you mean booting the computer/laptop or the emulator. But I booted my laptop and the problem still and even reinstalled the android studio and I was still getting the problem, so I whipped the data of the emulator and ever...
Rails raw SQL example
...ode in heroku,there is a request timeout error.I think this will be faster if I use raw sql.
6 Answers
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Switch statement multiple cases in JavaScript
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Here's different approach avoiding the switch statement altogether:
var cases = {
afshin: function() { alert('hey'); },
_default: function() { alert('default'); }
};
cases.larry = cases.saeed = cases.afshin;
cases[ varName ] ? ...
Converting unix timestamp string to readable date
... datetime module:
from datetime import datetime
ts = int("1284101485")
# if you encounter a "year is out of range" error the timestamp
# may be in milliseconds, try `ts /= 1000` in that case
print(datetime.utcfromtimestamp(ts).strftime('%Y-%m-%d %H:%M:%S'))
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