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How do we count rows using older versions of Hibernate (~2009)?
...a works with @EmbeddedId and databases that don't support tuple count (eg. MySQL, where queries like 'select count((a,b)) from table1' doesn't work).
– BrunoJCM
Dec 28 '12 at 20:22
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View contents of database file in Android Studio
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You may have to root your avd, and/or start adb as root at step 3 'root adb -s emulator-xxxx shell'
– Distwo
Apr 10 '14 at 17:18
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Looking for a 'cmake clean' command to clear up CMake output
... I can just rm -rf build.
The "build" folder in the same directory as the root "CMakeLists.txt" is usually a good choice. To build your project, you simply give cmake the location of the CMakeLists.txt as an argument. For example: cd <location-of-cmakelists>/build && cmake ... (From @...
ExecJS::RuntimeError on Windows trying to follow rubytutorial
... 2 was the accepted solution before actually finding information about the root issue we were having. The only reason we kept looking was that we couldn't believe the Rails team would (1) insert a line of code in every scaffold generated project that caused an issue, or (2) require that we install ...
Avoid duplicates in INSERT INTO SELECT query in SQL Server
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In MySQL you can do this:
INSERT IGNORE INTO Table2(Id, Name) SELECT Id, Name FROM Table1
Does SQL Server have anything similar?
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Ball to Ball Collision - Detection and Handling
...re and work with it that way. There's no reason for that expensive square root operation.
Also, once you have found a collision you have to continue to evaluate collisions until no more remain. The problem is that the first one might cause others that have to be resolved before you get an accurat...
EC2 Can't resize volume after increasing size
...s Change Everything"
The process works even if the volume to extend is the root volume of running instance!
Say we want to increase boot drive of Ubuntu from 8G up to 16G "on-the-fly".
step-1) login into AWS web console -> EBS -> right mouse click on the one you wish to resize -> "Modify ...
PHP PDO returning single row
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how about using limit 0,1 for mysql optimisation
and about your code:
$DBH = new PDO( "connection string goes here" );
$STH - $DBH -> prepare( "select figure from table1" );
$STH -> execute();
$result = $STH ->fetch(PDO::FETCH_ASSOC)
echo ...
.gitignore exclude files in directory but not certain directories
... .gitignore files in the folders you want to keep. You can put this in the root .gitignore as follows:
application/cache/*
application/cache/folder/*
application/cache/folder/onemorefolder/*
!*.gitkeep
Now just create and commit empty .gitkeep files into the directories as listed above. The folde...
No appenders could be found for logger(log4j)?
...ties (taken from the above mentioned guide) file to your classpath:
# Set root logger level to DEBUG and its only appender to A1.
log4j.rootLogger=DEBUG, A1
# A1 is set to be a ConsoleAppender.
log4j.appender.A1=org.apache.log4j.ConsoleAppender
# A1 uses PatternLayout.
log4j.appender.A1.layout=or...