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Java: difference between strong/soft/weak/phantom reference
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143
Java provides two different types/classes of Reference Objects: strong and weak. Weak Referenc...
How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...RT INTO testtable (id, somedata)
SELECT 2, 'blah'
WHERE NOT EXISTS (SELECT 1 FROM testtable WHERE testtable.id = 2);
COMMIT;
then when two run at once there are several failure modes. One is the already discussed issue with an update re-check. Another is where both UPDATE at the same time, matchin...
What's the pythonic way to use getters and setters?
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715
Try this: Python Property
The sample code is:
class C(object):
def __init__(self):
...
Creating stored procedure and SQLite?
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221
SQLite has had to sacrifice other characteristics that some people find useful, such as high ...
What is PAGEIOLATCH_SH wait type in SQL Server?
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117
From Microsoft documentation:
PAGEIOLATCH_SH
Occurs when a task is waiting on a latch for a b...
How can I change my default database in SQL Server without using MS SQL Server Management Studio?
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11 Answers
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Execute another jar in a Java program
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gjrwebbergjrwebber
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What is the purpose of Verifiable() in Moq?
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edited Jan 25 '19 at 6:38
Ian Kemp
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How do you list the active minor modes in emacs?
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125
C-h m or M-x describe-mode shows all the active minor modes (and major mode) and a brief descr...
Is there a quick way to delete a file from a Jar / war without having to extract the jar and recreat
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answered Dec 23 '10 at 17:11
martonamartona
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