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What are DDL and DML?
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More information see here: MySQL What is DDL, DML and DCL?, the original is as follows:
DDL
DDL is short name of Data Definition Language, which deals with
database schemas and descriptions, of how the data should resid...
HTML img tag: title attribute vs. alt attribute?
...pful (and i'm not suggesting to drop it) - However if there is "meaningful info" to provide the user in the form of a tooltip, then there most certainly should be a title attribute - since that is what it is there for. When I say "edge case" above, I'm believing that the total % of users accessing ...
How can I delete all unversioned/ignored files/folders in my working copy?
...urn value if the
# current directory is not in a svn working directory
svn info >/dev/null || exit 1
svn status --no-ignore | grep '^[I?]' | cut -c 9- |
# setting IFS to the empty string ensures that any leading or
# trailing whitespace is not trimmed from the filename
while IFS= read -r f; do
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When do you use POST and when do you use GET?
... this way.
POST is also more secure than GET, because you aren't sticking information into a URL. And so using GET as the method for an HTML form that collects a password or other sensitive information is not the best idea.
One final note: POST can transmit a larger amount of information than GET....
What’s the best RESTful method to return total number of items in an object?
...uding in the response also the total number of records, and other relevant info, like the page size, the page number/offset, etc.
The StackOverflow API is a good example of that same design. Here's the documentation for the Users method - https://api.stackexchange.com/docs/users
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Android: Storing username and password?
...or the user to have to re-enter their name/password often, so storing that info makes sense from a usability perspective.
The advice from the (Android dev guide) is:
In general, we recommend minimizing the frequency of asking for user
credentials -- to make phishing attacks more conspicuous,...
What difference does .AsNoTracking() make?
...SQL.
You still can’t use LIKE with general pattern matching.
More info available here:
Performance considerations for Entity Framework
Entity Framework and NoTracking
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Does disposing streamreader close the stream?
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Very nice info! Never heard of this new parameter and it actually makes a lot of sense.
– julealgon
Jun 2 '14 at 17:00
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Using Sinatra for larger projects via multiple files
...als
def spoof_request(uri,env_modifications={})
call(env.merge("PATH_INFO" => uri).merge(env_modifications)).last.join
end
def partial( page, variables={} )
haml page, {layout:false}, variables
end
end
helpers/nicebytes.rb
# encoding: utf-8
module NiceBytes
K = 2.0**10
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What does “fragment” mean in ANTLR?
...ct Concepts:
Case1: ( if I need the RULE1, RULE2, RULE3 entities or group info )
rule0 : RULE1 | RULE2 | RULE3 ;
RULE1 : [A-C]+ ;
RULE2 : [DEF]+ ;
RULE3 : ('G'|'H'|'I')+ ;
Case2: ( if I don't care RULE1, RULE2, RULE3, I just focus on RULE0 )
RULE0 : [A-C]+ | [DEF]+ | ('G'|'H'|'I')+ ;
// RULE...