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Return 0 if field is null in MySQL

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Hex representation of a color with alpha channel?

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How do I negate a test with regular expressions in a bash script?

Using GNU bash (version 4.0.35(1)-release (x86_64-suse-linux-gnu), I would like to negate a test with Regular Expressions. For example, I would like to conditionally add a path to the PATH variable, if the path is not already there, as in: ...
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How do you remove the root CA certificate that fiddler installs

... Since Fiddler 4.6.1.5 the GUI is a bit different. Go to Tools -> Fiddler Options -> HTTPS. Then click the "Actions" button and then "Reset All Certificates" It will popup a message that it could take a while but it's really quick. Approve...
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Android SQLite: nullColumnHack parameter in insert/replace methods

...03ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C...
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How to make an element in XML schema optional?

...ank you. – thonnor Jan 20 '17 at 23:56 Thank you! This link contains others informations – caval...
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How do I validate a date string format in python?

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Parsing JSON from XmlHttpRequest.responseJSON

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ERROR: permission denied for sequence cities_id_seq using Postgres

...ted Apr 13 '17 at 12:26 simbo1905 4,69811 gold badge3838 silver badges6666 bronze badges answered Feb 17 '12 at 8:43 ...
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Hour from DateTime? in 24 hours format

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