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What's the difference between NOT EXISTS vs. NOT IN vs. LEFT JOIN WHERE IS NULL?
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answered Feb 11 '10 at 18:42
QuassnoiQuassnoi
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Print “hello world” every X seconds
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answered Oct 16 '12 at 6:05
Rohit JainRohit Jain
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PostgreSQL function for last inserted ID
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625
( tl;dr : goto option 3: INSERT with RETURNING )
Recall that in postgresql there is no "id" co...
Run certain code every n seconds [duplicate]
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332
import threading
def printit():
threading.Timer(5.0, printit).start()
print "Hello, World!"...
How can I programmatically generate keypress events in C#?
...uestion is tagged WPF but the answers so far are specific WinForms and Win32.
To do this in WPF, simply construct a KeyEventArgs and call RaiseEvent on the target. For example, to send an Insert key KeyDown event to the currently focused element:
var key = Key.Insert; // Key to s...
Java - JPA - @Version annotation
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192
But still I am not sure how it works?
Let's say an entity MyEntity has an annotated version...
Rails: FATAL - Peer authentication failed for user (PG::Error)
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edited Mar 28 '14 at 14:54
Dennis
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Custom toast on Android: a simple example
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202
Use the below code of a custom Toast. It may help you.
toast.xml
<LinearLayout xmlns:andr...
Change MySQL default character set to UTF-8 in my.cnf?
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edited Jun 16 '13 at 12:59
Michal M
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answered...