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Cannot add or update a child row: a foreign key constraint fails
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It means that you're trying to insert into table2 a UserID value that doesn't exist in table1....
Generating file to download with Django
Is it possible to make a zip archive and offer it to download, but still not save a file to the hard drive?
8 Answers
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Way to get all alphabetic chars in an array in PHP?
...118] => DO [119] => DP [120] => DQ [121] => DR [122] => DS [123] => DT [124] => DU )
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Windows shell command to get the full path to the current directory?
... How did you understand what he was trying to say from that ? And, under dos and windows cmd, its usually just "cd"
– Rook
Mar 3 '09 at 19:08
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What's the difference between Thread start() and Runnable run()
... I consider that before we call Thread#start() ,nothing really relative to os thread happens? It is only a java object.
– Jaskey
Dec 6 '14 at 9:38
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Adding Python Path on Windows 7
...out and back in after setting the Path variable.
– dk123
Nov 5 '13 at 2:34
Suffering a similar problem, had done every...
source command not found in sh shell
...urce. On Ubuntu, though, /bin/dash is used which does not support source. Most shells use . instead of source. If you cannot edit the script, try to change the shell which runs it.
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Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?
...son why I'm considering it is that my genius project manager thinks that boost is another dependency and that it is horrible because "you depend on it"(I tried explaining the quality of boost, then gave up after some time :( ). Smaller reason why I would like to do it is that I would like to learn c...
'npm' is not recognized as internal or external command, operable program or batch file
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Don't forget to reboot your computer after installing node! That one got me.
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How to stop Gradle task execution in Android Studio?
...etail?id=59965
In the meantime about all you can do is to go through your OS and kill the Gradle processes manually, which is a little painful and messy. It's possible that it could leave your build in some intermediate bad state which would mess up future incremental compiles, but I don't know for...