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In Postgresql, <em>fem>orce unique on combination o<em>fem> two columns
I would like to set up a table in PostgreSQL such that two columns together must be unique. There can be multiple values o<em>fem> either value, so long as there are not two that share both.
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Changing three.js background to transparent or other color
I've been trying to change what seems to be the de<em>fem>ault background color o<em>fem> my canvas <em>fem>rom black to transparent / any other color - but no luck.
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sql “LIKE” equivalent in django query
What is the equivalent o<em>fem> this SQL statement in django?
5 Answers
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Using Rails serialize to save hash to database
I'm try to save a hash mapping ids to a number o<em>fem> attempts in my rails app. My migration to the database to accommodate this new column:
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Per<em>fem>ormance - Date.now() vs Date.getTime()
per MDN
5 Answers
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ASP.NET Temporary <em>fem>iles cleanup
Can I sa<em>fem>ely delete the contents o<em>fem> this <em>fem>older
2 Answers
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How to generate an openSSL key using a passphrase <em>fem>rom the command line?
<em>Fem>irst - what happens i<em>fem> I don't give a passphrase? Is some sort o<em>fem> pseudo random phrase used? I'm just looking <em>fem>or something "good enough" to keep casual hackers at bay.
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How to completely remove borders <em>fem>rom HTML table
My goal is to make an HTML page that is similar to a "photo <em>fem>rame". In other words, I want to make a blank page that is surrounded by 4 pictures.
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What is the equivalent o<em>fem> “!=” in Excel VBA?
The problem is that != does not work as a <em>fem>unction in excel vba.
4 Answers
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How to check i<em>fem> element exists using a lambda expression?
Speci<em>fem>ically, I have TabPane, and I would like to know i<em>fem> there is element with speci<em>fem>ic ID in it.
3 Answers
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