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Are there disadvantages to using a generic varchar(255) for all text-based fields?
...stcode , first name , last name , town , country , phone number etc, all of which are defined as VARCHAR(255) even though none of these fields will ever come close to having 255 characters. (If you're wondering, it's this way because Ruby on Rails migrations map String fields to VARCHAR(25...
Django connection to PostgreSQL: “Peer authentication failed”
... is set up to deny ordinary users from connecting through UNIX sockets but allows them over TCP/IP from localhost.
– Jim Garrison
May 1 '13 at 1:05
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What is the “volatile” keyword used for?
...optimisation would still be valid with i marked as volatile. In Java it is all about happens-before relationships.
– Tom Hawtin - tackline
Aug 7 '10 at 14:39
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What is an uber jar?
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Über is the German word for above or over (it's actually cognate with the English over).
Hence, in this context, an uber-jar is an "over-jar", one level up from a simple JAR (a), defined as one that contains both your package and all its dependencies in one single JAR file. T...
How do I put all required JAR files in a library folder inside the final JAR file with Maven?
I am using Maven in my standalone application, and I want to package all the dependencies in my JAR file inside a library folder, as mentioned in one of the answers here:
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How to remove all the null elements inside a generic list in one go?
Is there a default method defined in .Net for C# to remove all the elements within a list which are null ?
7 Answers
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Metadata file '.dll' could not be found
...idn't solve issue so I've had to do next steps: - clean solution - uncheck all build checkboxes - restart VS - check all build checkboxes - build solution
– frankie
Apr 8 '14 at 9:54
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Fastest way to check if string contains only digits
...nyone cares, this can certainly be reduced to a one-liner -> return str.All(c => c >= '0' && c <= '9');
– Jonesopolis
Feb 6 '14 at 14:07
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git command to show all (lightweight) tags creation dates
Is there a one liner that shows me the dates where all git lightweight tags where created ?
2 Answers
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How can I verify if one list is a subset of another?
I need to verify if a list is a subset of another - a boolean return is all I seek.
15 Answers
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