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INSERT … ON DUPLICATE KEY (do nothing)
I have a table with a unique key for two columns:
3 Answers
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What's the bad magic number error?
...or run the command above, after verifying you're not doing something regrettable.
– michael
Aug 11 '16 at 23:45
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How do you get a timestamp in JavaScript?
...wsers you can use Date.now() to get the UTC timestamp in milliseconds; a notable exception to this is IE8 and earlier (see compatibility table).
You can easily make a shim for this, though:
if (!Date.now) {
Date.now = function() { return new Date().getTime(); }
}
To get the timestamp in seco...
ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
...where I was needing to update records in a many to many with a custom join table in a disconnected app. Even with the entity grabbed from the database, I was getting referential errors, etc. I was using "context.Entry(score).State = System.Data.Entity.EntityState.Modified;" but this finally worked...
Creating an R dataframe row-by-row
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data.table seems to be even faster than pre-allocation using data.frames. Testing here: stackoverflow.com/a/11486400/636656
– Ari B. Friedman
Jul 15 '12 at 2:02
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Detect rotation of Android phone in the browser with JavaScript
...re the results from the four devices that I've tested (sorry for the ASCII table, but it seemed like the easiest way to present the results). Aside from the consistency between the iOS devices, there is a lot of variety across devices. NOTE: The events are listed in the order that they fired.
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Lightweight XML Viewer that can handle large files [closed]
...useful as an editor, but it does a good job of displaying flat XML data as tables.
There are tons of free editors that do XML syntax highlighting, including vim, emacs, scite, eclipse (J2EE edition), jedit, notepad++.
For heavyweight XML features, like XPath support, XSLT editing and debugging, SO...
Should you always favor xrange() over range()?
...rint " ".join(format(i*j,"3d") for j in xr) and voila! You have your times-tables up to ten. It works just the same as r = range(1,11) and for i in r: print " ".join(format(i*j,"3d") for j in r)... everything is an object in Python2. I think what you meant to say is that you can do index-based compr...
“use database_name” command in PostgreSQL
...s, the answer is that it can't be done. Maybe you should consider putting tables in different schemas instead of different databases?
– kgrittn
Apr 27 '12 at 12:40
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How do I check if an integer is even or odd? [closed]
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You should optimise this with a look-up table.
– Weeble
Feb 27 '10 at 2:45
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