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Oracle: how to UPSERT (update or insert into a table?)
...ny Andrews
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How to install the JDK on Ubuntu Linux
...e repository:
sudo add-apt-repository ppa:openjdk-r/ppa # only Ubuntu 17.4 and earlier
sudo apt update
Optional: To search available distributions of openjdk, use the following command:
apt search openjdk
Install the appropriate version with the following command:
sudo apt install openjdk-8-jd...
Filter LogCat to get only the messages from My Application in Android?
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274
Package names are guaranteed to be unique so you can use the Log function with the tag as your p...
Get the index of the object inside an array, matching a condition
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edited Apr 20 '19 at 8:24
community wiki
12 r...
What is Java Servlet?
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348
A servlet is simply a class which responds to a particular type of network request - most commo...
What is memoization and how can I use it in Python?
...Memoize(factorial)
A feature known as "decorators" was added in Python 2.4 which allow you to now simply write the following to accomplish the same thing:
@Memoize
def factorial(k):
if k < 2: return 1
return k * factorial(k - 1)
The Python Decorator Library has a similar decorator ca...
Why do Java programmers like to name a variable “clazz”? [closed]
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edited Jul 9 '19 at 10:44
answered Mar 27 '10 at 17:16
T...
Truncating all tables in a Postgres database
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234
FrustratedWithFormsDesigner is correct, PL/pgSQL can do this. Here's the script:
CREATE OR REPL...