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How to test an SQL Update statement before running it?
...n. Assuming he wants to check the result, I conclude his statement is more complex than a 'SET bar = 42', so within his session he will be able to make several queries to test the resulting set of data ...
– Imad Moqaddem
Jun 13 '12 at 9:06
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When should I use GC.SuppressFinalize()?
...g the Garbage Collector (GC) that this object was cleaned up fully.
The recommended IDisposable pattern when you have a finalizer is:
public class MyClass : IDisposable
{
private bool disposed = false;
protected virtual void Dispose(bool disposing)
{
if (!disposed)
{
...
What is the difference between “Rollback…” and “Back Out Submitted Changelist #####” in Perforce P4V
...tially faster, safer ways of undoing mistakes than using the p4 obliterate command (and you don't need admin access to use them).
In the case of "Rollback...", this could be any number of files, even an entire depot. You can tell it to rollback to a specific revision, changelist, or label. The ...
Script parameters in Bash
...iables $1 and $2 and $3 where the number refers to the argument. $0 is the command itself.
The arguments are seperated by spaces, so if you would provide the -from and -to in the command, they will end up in these variables too, so for this:
./ocrscript.sh -from /home/kristoffer/test.png -to /home...
How to check if a variable is an integer in JavaScript?
...is counts NaN as an integer. also performs worse against my method. jsperf.com/numbers-and-integers
– Blake Regalia
Jan 31 '13 at 23:54
2
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How do I change bash history completion to complete what's already on the line?
I found a command a couple of months ago that made my bash history auto-complete on what's already on the line when pressing the up arrow:
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Accessing MP3 metadata with Python [closed]
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@voyager, ID3v1 tags are simple, ID3v2 tags are complicated as hell... And now I have created BSD wrapper for pytagger github.com/Ciantic/songdetails I have not tagged it yet as released, but it works.
– Ciantic
Jan 18 '10 at 20:30
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Why does X[Y] join of data.tables not allow a full outer join, or a left join?
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Why can't enum's constructor access static fields?
... enum values) are initialized in textual order, and the enum values always come before the other fields. Note that in your class example you haven't shown where ABBREV_MAP is initialized - if it's after SUNDAY, you'll get an exception when the class is initialized.
Yes, it's a bit of a pain and cou...
How does facebook, gmail send the real time notification?
I have read some posts about this topic and the answers are comet, reverse ajax, http streaming, server push, etc.
5 Answer...