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What happens if you don't commit a transaction to a database (say, SQL Server)?
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As long as you don't COMMIT or ROLLBACK a transaction, it's still "running" and potentially holding locks.
If your client (application or user) closes the connection to the database before committing, any still running transactions will be rolled b...
(Built-in) way in JavaScript to check if a string is a valid number
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To check if a variable (including a string) is a number, check if it is not a number:
This works regardless of whether the variable content is a string or number.
isNaN(num) // returns true if the variable does NOT contain a valid number
Examples
isNaN(123) // false
isN...
.gitignore for PhoneGap/Cordova 3.0 projects - what should I commit?
...our project directory structure is standard, then you can start from this gitignore and modify it for your needs.
On a rule of thumb you've to exclude all generated files like the bin/ and gen/ directories.
If you're developing an Android version of your app you should exclude build files too like ...
Detecting which UIButton was pressed in a UITableView
I have a UITableView with 5 UITableViewCells . Each cell contains a UIButton which is set up as follows:
26 Answers
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How to debug a maven goal with intellij idea?
Can you debug a maven goal with Intellij IDEA? I know that I can right-click and run Debug . However, the maven plugin does not appear in my External Libraries list, so I can not go into the code and set a breakpoint. Thus, Debug runs through the goals without stopping, like Run does.
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git returns http error 407 from proxy after CONNECT
I have a problem while connecting to github from my PC, using git. System Win 7.
20 Answers
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jQuery Validate - require at least one field in a group to be filled
...up of fields. I think I've got a pretty good solution, and wanted to share it. Please suggest any improvements you can think of.
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Android Spanned, SpannedString, Spannable, SpannableString and CharSequence
...on of CharSequence, followed by StringBuilder.
Spanned is a CharSequence with "spans" indicating formatting to apply to portions of the text, where those spans cannot be modified.
Spannable is a Spanned, adding in the ability to modify the spans (to add or remove formatting), but not to modify the...
Where can I find php.ini?
...php file and add the following code:
<?php phpinfo(); ?>
and open it in browser, it will show the file which is actually being read!
Updates by OP:
The previously accepted answer is likely to be faster and more convenient for you, but it is not always correct. See comments on that answer...
Recommended SQL database design for tags or tagging [closed]
...f a few ways to implement tagging; using a mapping table between TagID and ItemID (makes sense to me, but does it scale?), adding a fixed number of possible TagID columns to ItemID (seems like a bad idea), Keeping tags in a text column that's comma separated (sounds crazy but could work). I've even ...