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I have a table with a nullable datetime field.
I'll execute queries like this:
select * from TABLE where FIELD is not null select * from TABLE where FIELD is null
Should I index this field or is not necessary? I will NOT search for some datetime value...
Answer Snippets (Read the full thread at stackoverflow):
The only possible edge case when index....
;-)
(From http://dev.mysql.com/doc/refman/5.0/en/mysql-indexes.html ) - "A search using col_name IS NULL employs indexes if col_name is indexed."
It's probably not necessary .
Slightly longer: yeeees.
In short: yes.
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Not sure how you'll take this question but...
Whenever I try to make my URLs look pretty I always end up messing around for too long and it's simply not worth the trouble. But the end effect is good if it were a simple task.
So what I want to do is create...
Started by Ben Shelock on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
For /user/MyUsername ==> index.php?do=user&username=MyUsername and /page/customPage ==> index.php?do=page&pagename=customPage , you can use:
RewriteRule ^([A-Za-z0-9-]+)/([A-Za-z0-9-]+)$ index.php?do=$1&$1name=$2 [L]
But I don't think you can write... .
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I'll make a trip for 15 days in London and I'll accomodate at Croydon..? So, I'd like to know which 'card' for travelling I should buy! Travelcards or Oyster Card and which zones I should choose (Croydon and London)???
Thanks in advance.. bye
Started by Alberto on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at yahoo):
A Pay As You Go Oyster Card is the most convenient ticket, but make... .
Although Croydon is in the distant suburbs there are fast trains from East Croydon Station to London Victoria every few minutes, taking 16 minutes
Most of central Croydon is in Zone 5 .
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Ask your Facebook Friends
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Hoe big are this guys ball for doing this, amazing
http://www.youtube.com/watch?v=tNnFHqy_XFY
Started by JettaTDi on
, 8 posts
by 4 people.
Answer Snippets (Read the full thread at com):
Http://www....
Could of easily gone wrong!!
$2,000,000 better off too Jesus, I didnt expect him to drop in on it too! Must be a world record for the biggest drop in! Here's a better quality video of it .
Thats crazy
Takes some balls to do a stunt like that .
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Hi I have a list that looks like this:
val1 val2 r1 10 3 r2 5 5 r3 9 7 r4 4 1 r5 2 9 r6 1000 0
I need to get the row in which both values are at their maximum together for example:
val1 val2 r1 10 3 no match both values can be highe r2 5 5 no match both...
Started by Luiscencio on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Val1 val2 val1+val2 r1 10 3 13 r2 5 5 10 r3 9 7 16 << r4 4 1 5 r5 2 9 11
Looks like the best solution is still to select the maximum by the sum of the two numbers:
Tuple<int,int> ... .
Just select the cell the highest sum of those two columns .
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I have a free MSDN account and now that I am proficient in C/C++/Java, and know some JavaScript, PHP and MySQL, I want to learn some proprietary languages from Microsoft. I am looking to experiment with everything within the next several months - C#, ...
Answer Snippets (Read the full thread at stackoverflow):
There are plenty of other add ons (ASP.NET MVC is currently an add on for anything less than the 2010 beta of Visual Studio)... .
The install should install any dependencies you need (the run time etc) .
The express editions are a good start, they are free .
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I am trying to create a column in a table that's a FOREIGN KEY, but in MySQL that's more difficult than it should be. It would require me to go back and make certain changes to an already-in-use table. So I wonder, how necessary is it for MySQL to be ...
Started by stalepretzel on
, 15 posts
by 15 people.
Answer Snippets (Read the full thread at stackoverflow):
You want to tell the entire stack: "These are the constraints on the data, and these constraints cannot be violated." You don't want... .
What you want are declarative constraints.
PHP is procedural.
You are going to make mistakes with PHP, 100% guaranteed .
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Background
I have a personal project that I've been trying to build for around 5 years. In essence it's an online game - a web application. It's not a "money maker", just something that I really want to build, so finding the funding to hire a skilled ...
Started by Franky-D on
, 8 posts
by 8 people.
Answer Snippets (Read the full thread at stackoverflow):
My opinion: Too much emphasis on the technology and not enough... .
Just make the client application call stub functions that return dummy data .
You don't need to build any kind of web back end to be able to get on with prototyping the client application .
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Hey everyone.
So basically this is something I jotted down a long time ago.
Was supposed to be a song. Tell me if you guys like it as much as I do.
I looked out of the window
Saw the sun about to rise
Set my cold feet on the ground and
Hope that my times...
Started by msbnat on
, 9 posts
by 5 people.
Answer Snippets (Read the full thread at youngwritersonline):
I'll do a line by liner through my ears
Wherever I'll....
Okay, so here we go.
Damn, I've gotta get some work done.
I'll get to it at some point
Edit: Back from being on vacation! I'll get to it soon at all lately.
Crit ticket.
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I'll be away from the 5th to the 12th with no Internet access at all.
I'll be seeing you guys as soon as I get back.
Started by thePTguy on
, 15 posts
by 11 people.
Answer Snippets (Read the full thread at createforumhosting):
Also, I think I'll have....
It's only a week, I'll promise to talk to you a lot when I get back.
I'll be seeing you you have fun where you're going.
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