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Is it possible to roll back CREATE TABLE and ALTER TABLE statements in major SQL databases?
... yes
MySQL - no; DDL causes an implicit commit
Oracle Database 11g Release 2 and above - by default, no, but an alternative called edition-based redefinition exists
Older versions of Oracle - no; DDL causes an implicit commit
SQL Server - yes
Sybase Adaptive Server - yes
DB2 - yes
Informix - yes
Fir...
Composer: how can I install another dependency without updating old ones?
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302
To install a new package and only that, you have two options:
Using the require command, just ...
git - Find commit where file was added
.../git-scm.com/docs/git-log#Documentation/git-log.txt---diff-filterACDMRTUXB82308203
I have a handy alias for this, because I always forget it:
git config --global alias.whatadded 'log --diff-filter=A'
This makes it as simple as:
git whatadded -- foo.js
The below one liner will recursively se...
How do I include inline JavaScript in Haml?
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241
:javascript
$(document).ready( function() {
$('body').addClass( 'test' );
} );
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vs
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123
The original intention in C++98 was that you should use <cstdint> in C++, to avoid pollut...
multiple tags
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142
Yes, absolutely. You can have multiple header, nav, and footer tags sans penalty.
As long as yo...
Pass parameter to controller from @Html.ActionLink MVC 4
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258
You are using a wrong overload of the Html.ActionLink helper. What you think is routeValues is...
Convert NSNumber to int in Objective-C
I use [NSNumber numberWithInt:42] or @(42) to convert an int to NSNumber before adding it to an NSDictionary:
5 Answers...
Linux command or script counting duplicated lines in a text file?
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219
Send it through sort (to put adjacent items together) then uniq -c to give counts, i.e.:
sort...
Creating java date object from year,month,day
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Months are zero-based in Calendar. So 12 is interpreted as december + 1 month. Use
c.set(year, month - 1, day, 0, 0);
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