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How do I update if exists, insert if not (AKA “upsert” or “merge”) in MySQL?
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INSERT INTO `usage`
(`thing_id`, `times_used`, `first_time_used`)
VALUES
(4815162342, 1, NOW())
ON DUPLICATE KEY UPDATE
`times_used` = `times_used` + 1
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How do I get logs/details of ansible-playbook module executions?
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114
If you pass the -v flag to ansible-playbook on the command line, you'll see the stdout and stder...
How to configure static content cache per folder and extension in IIS7?
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answered Feb 4 '10 at 1:50
KevKev
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How do I show an open file in eclipse Package Explorer?
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415
There is a button in the Package Explorer view that looks like two yellow arrows pointed at le...
Index all *except* one item in python
... 3rd element:
a = range(10)[::-1] # [9, 8, 7, 6, 5, 4, 3, 2, 1, 0]
b = [x for i,x in enumerate(a) if i!=3] # [9, 8, 7, 5, 4, 3, 2, 1, 0]
This is very general, and can be used with all iterables, including numpy arrays. If you replace [] with (), b will be an iterator inst...
Is there a timeout for idle PostgreSQL connections?
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Craig RingerCraig Ringer
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iOS difference between isKindOfClass and isMemberOfClass
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edited Jun 12 '19 at 16:14
NoodleOfDeath
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How are GCC and g++ bootstrapped?
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edited Jun 5 '14 at 11:10
answered Feb 24 '12 at 10:56
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Why isn't there a Guid.IsNullOrEmpty() method
...eople.
– Jon Skeet
Mar 23 '12 at 10:42
2
@goths You can make a general extension method for all v...