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How to select rows with no matching entry in another table?
...d table. Its efficiency is probably same as in case of LEFT JOIN with null test.
SELECT t1.ID
FROM Table1 t1
WHERE NOT EXISTS (SELECT t2.ID FROM Table2 t2 WHERE t1.ID = t2.ID)
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How to remove all null elements from a ArrayList or String Array?
...t, if the list is really big and performance is a concern, I would suggest testing both ways. My guess would be that removeIf is faster, but it's a guess.
– MarcG
Feb 6 '16 at 4:28
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How to use a decimal range() step value?
...2, 0.03, ..., 1.97, 1.98, 1.99]
(1/x produced less rounding noise when I tested).
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How do I use the ternary operator ( ? : ) in PHP as a shorthand for “if / else”?
... however as mentioned, it is the “null coalescing operator” so it only tests for null and not empty. This is because ?? Is effectively a shorthand for isset().
– Brian C
Oct 20 '19 at 7:14
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How to start an application using android ADB tools?
...hell am start -n $1/$1.MainActivity } and its usage androidrun com.example.test
– AbdullahDiaa
Feb 16 '13 at 12:43
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Java Security: Illegal key size or default parameters?
...load or mess with configuration files.
It's a reflection based solution, tested on java 8
Call this method once, early in your program.
//Imports
import javax.crypto.Cipher;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util...
HTTP could not register URL http://+:8000/HelloWCF/. Your process does not have access rights to thi
...hod is also useful for setting up the required permissions on an automated testing server.
– Technobabble
Jul 30 '13 at 21:26
8
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Android emulator doesn't take keyboard input - SDK tools rev 20
... when i set this value to yes, it forces the value back to no, anyway will test with a new Device again
– epsilonpsi
Jun 29 '12 at 8:36
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How can I put strings in an array, split by new line?
...\n" ending. And it's important that the two-character Windows separator is tested first.
– AndresRohrAtlasInformatik
Feb 14 at 10:56
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Javascript: How to loop through ALL DOM elements on a page?
...tly, it finds more results. I am not sure what those results are, but when testing on chrome it finds about 50% more nodes compared to document.getElementsByTagName("*");
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