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Restrict varchar() column to specific values?
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Personally, I'd code it as tinyint and:
Either: change it to text on the client, check constraint between 1 and 4
Or: use a lookup table with a foreign key
Reasons:
It will take on average 8 bytes to store text, 1 byte for tinyint. Over millions of rows,...
Colspan all columns
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I have IE 7.0, Firefox 3.0 and Chrome 1.0
The colspan="0" attribute in a TD is NOT spanning across all TDs in any of the above browsers.
Maybe not recommended as proper markup practice, but if you give a higher colspan value than the total possible n...
How to convert .pfx file to keystore with private key?
I need to sign Android application ( .apk ).
I have .pfx file. I converted it to .cer file via Internet Explorer and then converted .cer to .keystore using keytool. Then I've tried to sign .apk with jarsigner but it says that .keystore doesn't content a private key.
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HTTP URL Address Encoding in Java
My Java standalone application gets a URL (which points to a file) from the user and I need to hit it and download it. The problem I am facing is that I am not able to encode the HTTP URL address properly...
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Removing fields from struct or hiding them in JSON Response
...hat, upon being called, performs a query, creates an instance of a struct, and then encodes that struct as JSON before sending back to the caller. I'd now like to allow the caller to be able to select the specific fields they would like returned by passing in a "fields" GET parameter.
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Decreasing height of bootstrap 3.0 navbar
...28px; }
Work with Bootstrap 3.3.4
.navbar-nav > li > a, .navbar-brand {
padding-top:4px !important;
padding-bottom:0 !important;
height: 28px;
}
.navbar {min-height:28px !important;}
Update
Complete code to customize and decrease height of navbar with screenshot.
CSS:
/* ...
Setting a system environment variable from a Windows batch file?
...s it possible to set a environment variable at the system level from a command prompt in Windows 7 (or even XP for that matter). I am running from an elevated command prompt.
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How to make HTML table cell editable?
... cells of html table editable, simply double click a cell, input some text and the changes can be sent to server. I don't want to use some toolkits like dojo data grid. Because it provides some other features. Would you provide me some code snippet or advices on how to implement it?
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HTML span align center not working?
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A div is a block element, and will span the width of the container unless a width is set. A span is an inline element, and will have the width of the text inside it. Currently, you are trying to set align as a CSS property. Align is an attribute.
<...
Converting NumPy array into Python List structure?
...nvert a NumPy array to a Python List (for example [[1,2,3],[4,5,6]] ), and do it reasonably fast?
5 Answers
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