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Disable ONLY_FULL_GROUP_BY
...ution): you have to put the description of sql_mode inside a my.cnf file (/etc/my.cnf for instance) and restart the server. For instance, insert (below the [mysqld] section) sql_mode = "STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITU...
When should null values of Boolean be used?
...ean is useful, for example
to store booleans in a collection (List, Map, etc.)
to represent a nullable boolean (coming from a nullable boolean column in a database, for example). The null value might mean "we don't know if it's true or false" in this context.
each time a method needs an Object as ...
ADB Android Device Unauthorized
...kill-server' if that seems wrong"; as well as "error: device unauthorized" etc.
– Aaron Campbell
Oct 30 '15 at 22:34
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What is the best Java email address validation method? [closed]
...of the address (left-hand side, right-hand side, personal names, comments, etc), to parse/validate mailbox-list headers, to parse/validate the return-path (which is unique among the headers), and so forth.
The code as written has a javamail dependency, but it's easy to remove if you don't want the ...
What is difference between monolithic and micro kernel?
...t and some popular Linux distros have a Hurd port (Debian/Hurd, Arch Hurd, etc).
– beatgammit
Feb 2 '13 at 3:18
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nginx missing sites-available directory
... virtual hosts. The problem I am having is that I can't seem to find the /etc/nginx/sites-available directory.
3 Answers
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What is the difference between JVM, JDK, JRE & OpenJDK?
... compiler (javac.exe), Java application launcher (java.exe), Appletviewer, etc…
Compiler converts java code into byte code. Java application launcher opens a JRE, loads the class, and invokes its main method.
You need JDK, if at all you want to write your own programs, and to compile them. For r...
Android Facebook integration with invalid key hash
...re you check all properties - the HOMEPATH, the existence of the keystore, etc. Maybe you also have to provide password.
What generated the proper configuration was the solution suggested by @Mahendran.
Also, if you see the error originally posted (http://i.stack.imgur.com/58q3v.png), most probabl...
How to find all the subclasses of a class given its name?
I need a working approach of getting all classes that are inherited from a base class in Python.
10 Answers
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Error installing libv8: ERROR: Failed to build gem native extension
...ile.
Rails is happy to use which ever runtime it can find. execjs,nodejs etc. are all possible options.
Microsoft already embeds JScript runtime for javascript on windows, and Rails uses it. See this for more
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