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Select top 10 records for each category
... This works, but be aware that rank() is likely to be turned into a full table sort by the query planner if there isn't an index who's first key is the RankCriteria. In this case you may get better mileage selecting the distinct sections and cross applying to pick out the top 10 ordere...
Printing tuple with string formatting in Python
So, i have this problem.
I got tuple (1,2,3) which i should print with string formatting.
eg.
14 Answers
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Android: Remove all the previous activities from the back stack
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The solution proposed here worked for me:
Java
Intent i = new Intent(OldActivity.this, NewActivity.class);
// set the new task and clear flags
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(i);
Kotlin
val i = Intent(this, New...
How do I join two lists in Java?
...o not modifiy the original lists; JDK only, no external libraries. Bonus points for a one-liner or a JDK 1.3 version.
32 An...
When should a class be Comparable and/or Comparator?
... another object. The class itself must implements the java.lang.Comparable interface in order to be able to compare its instances.
Comparator
A comparator object is capable of comparing two different objects. The class is not comparing its instances, but some other class’s instances. This compar...
How do I edit /etc/sudoers from a script?
...status of visudo to make sure there are no errors?
– converter42
Nov 27 '08 at 15:58
/etc/sudoers.tmp is the lockfile ...
How to output MySQL query results in CSV format?
...@Flimm, assuming you don't have embedded commas/tabs in the fields you can convert it by piping the result into | sed 's/\t/,/g'
– John Carter
Nov 10 '11 at 4:42
113
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What is the default access specifier in Java?
...ssible from inside the same package to which the class belongs.
As mdma pointed out, it isn't true for interface members though, for which the default is "public".
See Java's Access Specifiers
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Remove unnecessary svn:mergeinfo properties
...o just mergeinfo only changes, strips everything but the actual file path, converts the one-per-line paths into a space delimited list, and the calls revert on that list.
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Check if page gets reloaded or refreshed in JavaScript
...n only store string values in session and local storage. Therefore true is converted to "true". 2). Session storage persists until the user closes the browser window, so you can't tell the difference between page reload and navigating away from and back to you site within the same browser session.
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