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Which SQL query is faster? Filter on Join criteria or Where clause?
Compare these 2 queries. Is it faster to put the filter on the join criteria or in the WHERE clause. I have always felt that it is faster on the join criteria because it reduces the result set at the soonest possible moment, but I don't know for sure.
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How to do a JUnit assert on a message in a logger
I have some code-under-test that calls on a Java logger to report its status.
In the JUnit test code, I would like to verify that the correct log entry was made in this logger. Something along the following lines:
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T-SQL CASE Clause: How to specify WHEN NULL
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edited Oct 23 '11 at 18:55
Kirk Woll
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A gentle tutorial to Emacs/Swank/Paredit for Clojure
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[Edit from non-author: this is from 2010, and the process has been significantly simplified since May 2011. I'll add a post to this answer with my setup notes as of Feb 2012.]
You'll need to put together a few pieces: Emacs, SL...
Can I use assert on Android devices?
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The API provides the JUnit Assert.
You can do
import static junit.framework.Assert.*;
now you can use all the functions like assertTrue, assertEquals, assertNull that are provided in the junit framework.
Be careful not to import the Junit4 fr...
Reload the path in PowerShell
...ell ISE running and I install something that modifies the PATH or I modify it in any way outside of PowerShell then I need to restart PowerShell for it to see the updated PATH variable.
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Distinct() with lambda?
Right, so I have an enumerable and wish to get distinct values from it.
18 Answers
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How to get an element's top position relative to the browser's viewport?
I want to get the position of an element relative to the browser's viewport (the viewport in which the page is displayed, not the whole page). How can this be done in JavaScript?
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Android: Temporarily disable orientation changes in an Activity
My main activity has some code that makes some database changes that should not be interrupted. I'm doing the heavy lifting in another thread, and using a progress dialog which I set as non-cancellable. However, I noticed that if I rotate my phone it restarts the activity which is REALLY bad for the...
How do I select an entire row which has the largest ID in the table?
...row, use @MichaelMior's answer,
SELECT row from table ORDER BY id DESC LIMIT 1
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