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Difference between Hive internal tables and external tables?
... database(this allows hive to use lists of partitions without going to the file-system and finding them, etc). These sorts of things are the 'metadata'.
When you drop an internal table, it drops the data, and it also drops the metadata.
When you drop an external table, it only drops the meta data....
HTML File Selection Event
... yes in script tags, or you could add it as an attribute (<input type="file" onchange="..." />) although this is not recommended.
– Anurag
Aug 20 '10 at 5:52
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Git: Ignore tracked files
I have some tracked files in a repository which are automatically modified when building the code. I don't want to untrack them, I just don't want them to appear as modified and I don't want them to be staged when I git add.
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How to add a downloaded .box file to Vagrant?
How do I add a downloaded .box file to Vagrant's list of available boxes? The .box file is located on an external drive.
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Storing Images in PostgreSQL
...ck your needs and server configs (ex. Apache modules): store thumbnails at file system may be better, compare performances. Remember that it is a (unified) web-service, then can be stored at a separate database (with no backups), serving many tables. See also PostgreSQL binary data types manual, t...
Can a CSV file have a comment?
Is there any official way to allow a CSV formatted file to allow comments, either on its own line OR at the end of a line?
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See what process is using a file in Mac OS X
I would like to be able to track a file and see which process is touching that file. Is that possible? I know that I can see the list of open processes in activity monitor but I think it's happening to quickly for me to see it. The reason for this is I'm using a framework and I think the system v...
How to use if - else structure in a batch file?
I have a question about if - else structure in a batch file. Each command runs individually, but I couldn't use "if - else" blocks safely so these parts of my programme doesn't work. How can I do make these parts run? Thank you.
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Vim indent xml file
...owing is a little more flexible in that you don't have to alter your vimrc file. Plus it is easier to format select portions of the XML file (something I happen to do a lot).
First, highlight the XML you want to format.
Then, in normal mode, type ! xmllint --format -
Your command-line at the bott...
How do I resolve git saying “Commit your changes or stash them before you can merge”?
...git checkout -t -f remote/branch
Or: Discard local changes for a specific file
using git checkout filename
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