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How can I give the Intellij compiler more heap space?
When I make an Intellij project, I keep getting the following out of memory error.
8 Answers
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How to add an auto-incrementing primary key to an existing table, in PostgreSQL?
I have a table with existing data. Is there a way to add a primary key without deleting and re-creating the table?
4 Answer...
Adding multiple columns AFTER a specific column in MySQL
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Try this
ALTER TABLE users
ADD COLUMN `count` SMALLINT(6) NOT NULL AFTER `lastname`,
ADD COLUMN `log` VARCHAR(12) NOT NULL AFTER `count`,
ADD COLUMN `status` INT(10) UNSIGNED NOT NULL AFTER `log`;
check the syntax
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Add a reference column migration in Rails 4
...tionship between them.
All you need to do is: just generate a migration using the following command:
rails g migration AddUserToUploads user:references
Which will create a migration file as:
class AddUserToUploads < ActiveRecord::Migration
def change
add_reference :uploads, :user, inde...
Getting a better understanding of callback functions in JavaScript
I understand passing in a function to another function as a callback and having it execute, but I'm not understanding the best implementation to do that. I'm looking for a very basic example, like this:
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SqlDataAdapter vs SqlDataReader
What are the differences between using SqlDataAdapter vs SqlDataReader for getting data from a DB?
5 Answers
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Android - Setting a Timeout for an AsyncTask?
....get()
myDownloader.get(30000, TimeUnit.MILLISECONDS);
Note that by calling this in main thread (AKA. UI thread) will block execution, You probably need call it in a separate thread.
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What's the difference between a method and a function?
Can someone provide a simple explanation of methods vs. functions in OOP context?
34 Answers
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Differences between Proxy and Decorator Pattern
...an object, whereas a proxy controls access to an object.
Proxies vary in the degree to which they are implemented like a decorator. A
protection proxy might be implemented exactly like a decorator. On the other
hand, a remote proxy will not contain a direct reference to its real subject but...
moveCamera with CameraUpdateFactory.newLatLngBounds crashes
I'm making use of the new Android Google Maps API .
20 Answers
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