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Storing SHA1 hash values in MySQL
... character, you would only need a 160/8 = 20 character long field.
So I recommend you to use BINARY(20) and the UNHEX function to convert the SHA1 value to binary.
I compared storage requirements for BINARY(20) and CHAR(40).
CREATE TABLE `binary` (
`id` int unsigned auto_increment primary key...
Is there a limit on how much JSON can hold?
I am using jquery, JSON, and AJAX for a comment system. I am curious, is there a size limit on what you can send through/store with JSON? Like if a user types a large amount and I send it through JSON is there some sort of maximum limit?
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How do you debug a regex? [closed]
Regular expressions can become quite complex. The lack of white space makes them difficult to read. I can't step though a regular expression with a debugger. So how do experts debug complex regular expressions?
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How to get a list of installed android applications and pick one to run
...y about the my app reading and storing a list of all apps, and potentially communicating with a server. Is there any guidelines?
– dowjones123
Jun 30 '15 at 20:07
1
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Bower: ENOGIT Git is not installed or not in the PATH
....
Open the Windows Environment Variables/Path Window.
Right-click on My Computer -> Properties
Click Advanced System Settings link from the left side column
Click Environment Variables in the bottom of the window
Then under System Variables look for the path variable and click edit
Add the pwd...
Is it safe to get values from a java.util.HashMap from multiple threads (no modification)?
...onsumption). Conveniently, there are only a few easy-to-remember ways to accomplish that[1]:
Exchange the reference through a properly locked field (JLS 17.4.5)
Use static initializer to do the initializing stores (JLS 12.4)
Exchange the reference via a volatile field (JLS 17.4.5), or as the conse...
How do I subtract minutes from a date in javascript?
...ate this pseudo code into working js [don't worry about where the end date comes from except that it's a valid javascript date].
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EC2 instance has no public DNS
.... Have a look at the step-by-step instructions:
Go to console.aws.amazon.com
Go To Services -> VPC
Open Your VPCs
select your VPC connected to your EC2 and
select Actions => Edit DNS Hostnames
---> Change DNS hostnames: to YES
Hope this helps!
Cheers
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Styling twitter bootstrap buttons
...es changing of the CSS. Here is a quick link to that file:
https://github.com/twbs/bootstrap/blob/master/dist/css/bootstrap.css
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