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Ruby: extend self
In Ruby, I understand the basic idea of extend . However, what's happening in this segment of code? Specifically, what does extend do? Is it just a convenient way of making the instance methods into class methods? Why would you do it this way rather than specifying class methods from the beginnin...
Correct use of flush() in JPA/Hibernate
I was gathering information about the flush() method, but I'm not quite clear when to use it and how to use it correctly. From what I read, my understanding is that the contents of the persistence context will be synchronized with the database, i. e. issuing outstanding statements or refreshing enti...
select count(*) from table of mysql in php
I am able to get both the value and row of the mysql query result.
18 Answers
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Converting a double to an int in C#
In our code we have a double that we need to convert to an int.
5 Answers
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What is the difference between MySQL, MySQLi and PDO? [closed]
What is the difference between MySQL, MySQLi and PDO ?
4 Answers
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Sample settings.xml for maven
How to configure settings.xml in Maven? Also, please share a sample settings.xml .
3 Answers
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What does a script-Tag with src AND content mean?
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How to automatically generate getters and setters in Android Studio
Is there a shortcut in Android Studio for automatically generating the getters and setters in a given class?
15 Answers
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Convert String to double in Java
How can I convert a String such as "12.34" to a double in Java?
15 Answers
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Altering column size in SQL Server
How to change the column size of the salary column in the employee table from numeric(18,0) to numeric(22,5)
6 Answe...