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Difference between local and global indexes in DynamoDB
I'm curious about these two secondary indexes and differences between them. It is hard to imagine how this looks like. And I think, this will help more people than just me.
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How to store a list in a column of a database table
...ould create another table that effectively holds the elements of said list and then link to it directly or through a junction table. However, the type of list I want to create will be composed of unique items (unlike the linked question's fruit example). Furthermore, the items in my list are exp...
What does the “yield” keyword do?
What is the use of the yield keyword in Python, and what does it do?
42 Answers
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How to change package name of an Android Application
My keystore is corrupt, therefore the Android Market is requiring me to rename the app and resubmit it. However, whenever I go to edit the package names in Manifest and throughout the files, it gives me tons of errors.
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Copy and paste content from one file to another file in vi
I am working with two files, and I need to copy a few lines from one file and paste into another file. I know how to copy (yy) and paste (p) in the same file. But that doesn't work for different files. How is this done?
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.c vs .cc vs. .cpp vs .hpp vs .h vs .cxx [duplicate]
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Historically, the first extensions used for C++ were .c and .h, exactly like for C. This caused practical problems, especially the .c which didn't allow build systems to easily differentiate C++ and C files.
Unix, on which C++ has been developed, has case sensitive file systems....
What are free monads?
I've seen the term Free Monad pop up every now and then for some time, but everyone just seems to use/discuss them without giving an explanation of what they are. So: what are free monads? (I'd say I'm familiar with monads and the Haskell basics, but have only a very rough knowledge of cat...
What is InnoDB and MyISAM in MySQL?
What is InnoDB and MyISAM in MySQL ?
8 Answers
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How does a PreparedStatement avoid or prevent SQL injection?
...tatement. By using prepared statements you can force the user input to be handled as the content of a parameter (and not as a part of the SQL command).
But if you don't use the user input as a parameter for your prepared statement but instead build your SQL command by joining strings together, you ...
Why is Hibernate Open Session in View considered a bad practice?
And what kind of alternative strategies do you use for avoiding LazyLoadExceptions?
9 Answers
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