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What's the difference between comma separated joins and join on syntax in MySQL? [duplicate]
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There is absolutely no difference in performance. Final version prepared by SQL Server would be the same in both the cases.
– Sateesh Pagolu
Feb 27 '15 at 0:31
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Right HTTP status code to wrong input
...ample, this error condition may occur if an XML request body contains well-formed (i.e., syntactically correct), but semantically erroneous, XML instructions.
source: https://www.bennadel.com/blog/2434-http-status-codes-for-invalid-data-400-vs-422.htm
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How to store a list in a column of a database table
...ned SQL developers.
The principle you're violating is called first normal form, which is the first step in database normalization.
At the risk of oversimplifying things, database normalization is the process of defining your database based upon what the data is, so that you can write sensible, con...
How to change the button text of ?
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Use Bootstrap FileStyle, which is used to style the file fields of forms. It is a plugin for a jQuery-based component library called Twitter Bootstrap
Sample usage:
Include:
<script type="text/javascript" src="js/bootstrap-filestyle.min.js"> </script>
Via JavaScript:
$(":fi...
Get model's fields in Django
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_meta is private, but it's relatively stable. There are efforts to formalise it, document it and remove the underscore, which might happen before 1.3 or 1.4. I imagine effort will be made to ensure things are backwards compatible, because lots of people have been using it anyway.
If you're ...
ComboBox: Adding Text and Value to an Item (no Binding Source)
... I believe that may only be available in ASP.NET and not WinForms.
– Adam Markowitz
Jun 17 '10 at 16:10
1
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Why should the copy constructor accept its parameter by reference in C++?
...ard in §12.8/3:
A declaration of a constructor for a
class X is ill-formed if its first
parameter is of type (optionally cv-
qualified) X and either there are no
other parameters or else all other
parameters have default arguments.
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What is (functional) reactive programming?
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Semantic determinacy is very important for reasoning, both rigorous and informal.
While concurrency adds enormous complexity to imperative programming (due to nondeterministic interleaving), it is effortless in FRP.
So, what is FRP?
You could have invented it yourself.
Start with these ideas:
Dy...
Apply style ONLY on IE
...tional comment in your HTML:
<!--[if IE]>
<style>
.actual-form table {
width: 100%;
}
</style>
<![endif]-->
There are numerous hacks (e.g. the underscore hack) you can use that will allow you to target only IE within your stylesheet, but it gets very messy...
Frame Buster Buster … buster code needed
...tacker uses sandbox because it restricts the iframe from following:
allow-forms: Allow form submissions.
allow-popups: Allow opening popup windows.
allow-pointer-lock: Allow access to pointer movement and pointer lock.
allow-same-origin: Allow access to DOM objects when the iframe loaded form same ...