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move_uploaded_file gives “failed to open stream: Permission denied” error
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This is because images and tmp_file_upload are only writable by root user. For upload to work we need to make the owner of those folders same as httpd process owner OR make them globally writable (bad practice).
Check apache process owner: $ps aux | gre...
How to print a number with commas as thousands separators in JavaScript
... '.' problem '123456789.01234'.replace(/\B(?=(?=\d*\.)(\d{3})+(?!\d))/g, '_')
– Dmitrij Golubev
Jun 17 '13 at 9:29
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Is it better to call ToList() or ToArray() in LINQ queries?
...; keeps track on whether collection was modified, there is a private field _version in this class which is changed everytime the List<> is updated.)
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Android Layout with ListView and Buttons
...lns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="fill_parent">
<Button android:layout_width="fill_parent"
android:layout_height="wrap_content" android:id="@+id/testbutton"
android:text="@string/hello" an...
What is the difference between Class Path and Build Path
...h option because they both may need it.
– intrepistar_88
Jan 19 '18 at 20:46
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Remove Identity from a column in a table
...the two tables (instant).
Drop the original (now-empty table), exec sys.sp_rename to rename the various schema objects back to the original names, and then you can recreate your foreign keys.
For example, given:
CREATE TABLE Original
(
Id INT IDENTITY PRIMARY KEY
, Value NVARCHAR(300)
);
CREAT...
What do people find difficult about C pointers? [closed]
... understanding the machine architecture. See en.wikipedia.org/wiki/Pointer_(computing) and boredzo.org/pointers/#definition
– Robert Harvey
Oct 26 '10 at 20:01
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Non-Relational Database Design [closed]
...al relational design or SQL (such as Hypertable, CouchDB, SimpleDB, Google App Engine datastore, Voldemort, Cassandra, SQL Data Services, etc.). They're also often referred to as "key/value stores", and at base they act like giant distributed persistent hash tables.
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Mac OS X - EnvironmentError: mysql_config not found
...rror, well, there are a few things you could try:
Try running which mysql_config from bash. It probably won't be found. That's why the build isn't finding it either. Try running locate mysql_config and see if anything comes back. The path to this binary needs to be either in your shell's $PATH env...
Jackson enum Serializing and DeSerializer
... write:
public enum Event {
@JsonProperty("forgot password")
FORGOT_PASSWORD;
}
The behavior is documented here: https://fasterxml.github.io/jackson-annotations/javadoc/2.11/com/fasterxml/jackson/annotation/JsonProperty.html
Starting with Jackson 2.6 this annotation may also be used to cha...