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Best practices for SQL varchar column length [closed]
..., it does not make any difference whether you declare a column as VARCHAR(100) or VARCHAR(500).
You should see the max length provided for a VARCHAR column as a kind of constraint (or business rule) rather than a technical/physical thing.
For PostgreSQL the best setup is to use text without a len...
Querying DynamoDB by date
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edited Jan 19 '17 at 17:50
AnkitG
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answered Feb ...
Postgres and Indexes on Foreign Keys and Primary Keys
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420
PostgreSQL automatically creates indexes on primary keys and unique constraints, but not on the ...
log4net vs. Nlog
...want a quality solution, but frankly don't need ultra high performance or 60 types of event sinks.
All 3 have very similar basic concepts.
Each has its own cool tricks, like really advanced routing, or dynamic log filenames, file truncating, etc.
All 3 are pretty well documented in their own way.
Fo...
Send email using java
...mary.html
http://forum.java.sun.com/thread.jspa?threadID=5205249
smtpsend.java - demo program from javamail
*/
props.put("mail.smtps.quitwait", "false");
Session session = Session.getInstance(props, null);
// -- Create a new message -...
Cross field validation with Hibernate Validator (JSR 303)
...field validation should be done at the class level. Additionally, the JSR-303 Section 2.2 preferred way to express multiple validations of the same type is via a list of annotations. This allows the error message to be specified per match.
For example, validating a common form:
@FieldMatch.List(...
Visual Studio Disabling Missing XML Comment Warning
I have a project with over 500 Missing XML Comment warnings. I know I can remove the XML Comment feature, or paste empty comment snippets everywhere, but I'd prefer a generic solution where I can make one change that disables all warnings of this type.
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When should std::move be used on a function return value? [duplicate]
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answered Feb 13 '13 at 15:07
Steve JessopSteve Jessop
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Using Version Control for Home Development?
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Completely.
Credits also to http://blogs.embarcadero.com/nickhodges/2010/04/23/39416:
Sometimes we do stupid mistakes. Having a source control safety net is a must.
Tag important milestones. Even in home development you may want to mark a set of files and revisions as being a specific softwa...
Should image size be defined in the img tag height/width attributes or in CSS? [duplicate]
...aspect ratio could prove useful ("image has a width of 15 and a height of 200"). Such user agents wouldn't necessarily process any CSS.
The spec says that the width and height attributes can also be used to override the height and width conveyed in the actual image file. I am not suggesting they be...