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What's best SQL datatype for storing JSON string?
...t. Use VARCHAR(MAX) or NVARCHAR(MAX) instead
IMAGE, VARBINARY(MAX) : IMAGE is deprecated just like TEXT/NTEXT, and there's really no point in storing a text string into a binary column....
So that basically leaves VARCHAR(x) or NVARCHAR(x): VARCHAR stores non-Unicode strings (1 byte per character)...
How to add texture to fill colors in ggplot2
...ocumentation but didn't see anything about adding textures to fill colors. Is there an official ggplot2 way to do this or does anyone have a hack that they use? By textures I mean things like diagonal bars, reverse diagonal bars, dot patterns, etc that would differentiate fill colors when printed ...
SQL update query using joins
I have to update a field with a value which is returned by a join of 3 tables.
11 Answers
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Django: accessing session variables from within a template?
...quest to your template context processors. Then you can access them like this:
{{ request.session.name }}
In case you are using custom views make sure you are passing a RequestContext instance. Example taken from documentation:
from django.shortcuts import render_to_response
from django.template...
Blank HTML SELECT without blank item in dropdown list
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Just use disabled and/or hidden attributes:
<option selected disabled hidden style='display: none' value=''></option>
selected makes this option the default one.
disabled makes this option unclickable.
style='display: n...
How to list out all the subviews in a uiviewcontroller in iOS?
I want to list out all the subviews in a UIViewController . I tried self.view.subviews , but not all of the subviews are listed out, for instance, the subviews in the UITableViewCell are not found. Any idea?
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Why is Attributes.IsDefined() missing overloads?
...red by an SO question. The Attribute class has several overloads for the IsDefined() method. Covered are attributes applied to Assembly, Module, MemberInfo, ParameterInfo. The MemberInfo overload covers PropertyInfo, FieldInfo, EventInfo, MethodInfo, ConstructorInfo.
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differences between 2 JUnit Assert classes
...d the methods on each appear to be very similar. Can anybody explain why this is?
6 Answers
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get dictionary key by value
... have to be unique so you have to do a lookup. You can do something like this:
var myKey = types.FirstOrDefault(x => x.Value == "one").Key;
If values are unique and are inserted less frequently than read, then create an inverse dictionary where values are keys and keys are values.
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Strip Leading and Trailing Spaces From Java String
Is there a convenience method to strip any leading or trailing spaces from a Java String?
6 Answers
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