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Difference between partition key, composite key and clustering key in Cassandra?
...rule to make query is you have to pass at least all partition key columns, then you can add optionally each clustering key in the order they're set.
so the valid queries are (excluding secondary indexes)
col1 and col2
col1 and col2 and col10
col1 and col2 and col10 and col 4
Invalid:
col1 and...
NHibernate ISession Flush: Where and when to use it, and why?
...an edit might be required because you say at the top "Never use close" and then later "If you rollback the transaction you should immediately close and discard the current session"
– SpaceBison
Apr 14 '14 at 10:22
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How to return an array from JNI to Java?
...Array(). If you just wanted to return a single dimensional array of ints, then the NewIntArray() function is what you'd use to create the return value. If you wanted to create a single dimensional array of Strings then you'd use the NewObjectArray() function but with a different parameter for the ...
jQuery checkbox event handling
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If the checkbox is hidden, then a user won't be able to interact with it. Let me know if you meant something else.
– Anurag
Mar 13 '12 at 22:06
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How to convert AAR to JAR
...Pham seems to be related not to this answer, but to the answer of AWT, and then I agree partly with ChuongPham, i.e. simple rename from AAR to JAR is not working. However, I also partly disagree because "resources" is not relevant for the classes.jar file.
– carl
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SQL Server: Examples of PIVOTing String data
...able to be scanned once.
SELECT Action,
MAX( CASE data WHEN 'View' THEN data ELSE '' END ) ViewCol,
MAX( CASE data WHEN 'Edit' THEN data ELSE '' END ) EditCol
FROM t
GROUP BY Action
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How do I turn a String into a InputStreamReader in java?
...putStream is = new ByteArrayInputStream( myString.getBytes( charset ) );
Then convert to reader:
InputStreamReader reader = new InputStreamReader(is);
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Split code over multiple lines in an R script
...ue, try
R> setwd(paste("~/a/very/long/path/here",
"/and/then/some/more",
"/and/then/some/more",
"/and/then/some/more", sep=""))
which also illustrates that it is perfectly fine to break code across multiple lines.
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Custom views with Storyboard
...Select your view controller in IB (click on the black bar below the view), then drag a UIView from the Object Library into the black bar:
When a view is in the black bar, it's instantiated like any other view in IB but just isn't added to your view hierarchy until you do so in code. Change the vie...
Convert SVG to image (JPEG, PNG, etc.) in the browser
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If the browser supports SVG and canvas, then there would be a much simpler way to load the SVG into memory and then paint it into a canvas, without the need for Canvg, which is a pretty large library because it handles all the SVG parsing that an SVG-supporting bro...