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How do MySQL indexes work?
... table scan).
On the other hand, an index has a list of keywords, so you'd consult the index and see that storage is mentioned on pages 113-120,231 and 354. Then you could flip to those pages directly, without searching (that's a search with an index, somewhat faster).
Of course, how useful the ind...
Render a string in HTML and preserve spaces and linebreaks
...it will display the ' ' instead of the spaces, unless I use @Html.Raw(). Then I have to be concerned about xss and the user entering bad html. I could however encode the strings on insert so that I could be less concerned about that.
– Dan dot net
Feb ...
iPhone App Icons - Exact Radius?
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After trying some of the answers in this post, I consulted with Louie Mantia (former Apple, Square, and Iconfactory designer) and all the answers so far on this post are wrong (or at least incomplete). Apple starts with the 57px icon and a radius of 10 then scales up or dow...
How to make node.js require absolute? (instead of relative)
...ecided to use callbacks instead of futures/promises. Majority of my nodejs consulting involves cursing said "leaders", and convincing people to move to JVM. Which is much easier after few months of using nodejs :)
– David Sergey
Oct 17 '13 at 15:03
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Converting between strings and ArrayBuffers
...ticle.
Excerpt:
The Encoding API makes it simple to translate between raw bytes and native JavaScript strings, regardless of which of the many standard encodings you need to work with.
<pre id="results"></pre>
<script>
if ('TextDecoder' in window) {
// The local files...
Remove all line breaks from a long string of text
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How do you enter line breaks with raw_input? But, once you have a string with some characters in it you want to get rid of, just replace them.
>>> mystr = raw_input('please enter string: ')
please enter string: hello world, how do i enter line break...
Inserting multiple rows in mysql
.... She asked for 3000 rows, imagine each row has 1kb of data, that's 3MB of raw data already. The array will take up 30MB of memory she already consumes another 30MB from the $table_1 so the script would use 60MB. Just saying, otherwise it's a good solution
– John
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Entity Framework VS LINQ to SQL VS ADO.NET with stored procedures? [closed]
...ee edits)
For bulk updates where you're updating massive amounts of data, raw SQL or a stored procedure will always perform better than an ORM solution because you don't have to marshal the data over the wire to the ORM to perform updates.
2) Speed of Development
In most scenarios, EF will blow...
How do I fix "The expression of type List needs unchecked conversion…'?
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Since getEntries returns a raw List, it could hold anything.
The warning-free approach is to create a new List<SyndEntry>, then cast each element of the sf.getEntries() result to SyndEntry before adding it to your new list. Collections.checkedLi...
Error executing command 'ant' on Mac OS X 10.9 Mavericks when building for Android with PhoneGap/Cor
...executing following command in terminal:
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Install Apache Ant via Homebrew by executing
brew install ant
Run the PhoneGap build again and it should successfully compile and install your Android app.
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