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How can I use UUIDs in SQLAlchemy?
...s dialect supports UUID columns. This is easy (and the question is specifically postgres) -- I don't understand why the other answers are all so complicated.
Here is an example:
from sqlalchemy.dialects.postgresql import UUID
from flask_sqlalchemy import SQLAlchemy
import uuid
db = SQLAlchemy()
...
How to Customize a Progress Bar In Android
...l is 10,000.
I've used this two images to make this CustomProgressBar.
scall.png
ballon_progress.png
MainActivity.java
public class MainActivity extends ActionBarActivity {
private EditText etPercent;
private ClipDrawable mImageDrawable;
// a field in your class
private int mLevel = 0;
p...
PreparedStatement IN clause alternatives?
...= ? into the faster IN (?) clause condition, which can then be expanded by calling the any method.
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How to create a drop-down list?
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I want to call Multiple value in Place of private static final String[]paths = {"item 1", "item 2", "item 3"}; help of php code taking data from my sql How can I Take these Value from mysql server and make dynamic and admin Updatable...
What is “Argument-Dependent Lookup” (aka ADL, or “Koenig Lookup”)?
...e good explanations on what argument dependent lookup is? Many people also call it Koenig Lookup as well.
4 Answers
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How do I get the current GPS location programmatically in Android?
I need to get my current location using GPS programmatically.
How can i achieve it?
23 Answers
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The property 'value' does not exist on value of type 'HTMLElement'
... from it because you are passing an ID of input element. Similarly in statically typed Java this won't compile:
public Object foo() {
return 42;
}
foo().signum();
signum() is a method of Integer, but the compiler only knows the static type of foo(), which is Object. And Object doesn't have a s...
Placeholder in UITextView
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why the calls to becomeFirstResponder and resignFirstResponder in the delegate methods?
– Adam Johns
Mar 2 '15 at 21:11
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Why do some functions have underscores “__” before and after the function name?
...es as a naming convention for "special" or "magic" methods.
While you can call these methods directly ([10, 20].__len__() for example), the presence of the underscores is a hint that these methods are intended to be invoked indirectly (len([10, 20]) for example). Most python operators have an asso...
SQL Add foreign key to existing column
...e a column of the ActiveDirectories table
Could it be that the column is called ID in the Employees table, and UserID in the ActiveDirectories table?
Then your command should be:
ALTER TABLE Employees
ADD FOREIGN KEY (ID) <-- column in table "Employees"
REFERENCES ActiveDire...