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Undoing a git rebase
Does anybody know how to easily undo a git rebase?
18 Answers
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Can not deserialize instance of java.util.ArrayList out of START_OBJECT token
I'm trying to POST a List of custom objects.
My JSON in request body is this:
12 Answers
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What do Clustered and Non clustered index actually mean?
I have a limited exposure to DB and have only used DB as an application programmer. I want to know about Clustered and Non clustered indexes .
I googled and what I found was :
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Get the length of a String
How do you get the length of a String ? For example, I have a variable defined like:
41 Answers
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Mapping a function on the values of a map in Clojure
I want to transform one map of values to another map with the same keys but with a function applied to the values. I would think there was a function for doing this in the clojure api, but I have been unable to find it.
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Is it possible to use 'else' in a list comprehension? [duplicate]
Here is the code I was trying to turn into a list comprehension:
6 Answers
6
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MySQL InnoDB not releasing disk space after deleting data rows from table
I have one MySQL table using the InnoDB storage engine; it contains about 2M data rows. When I deleted data rows from the table, it did not release allocated disk space. Nor did the size of the ibdata1 file reduce after running the optimize table command.
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How does one reorder columns in a data frame?
How would one change this input (with the sequence: time, in, out, files):
11 Answers
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Find a pair of elements from an array whose sum equals a given number
Given array of n integers and given a number X, find all the unique pairs of elements (a,b), whose summation is equal to X.
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Regular expression for a string that does not start with a sequence
I'm processing a bunch of tables using this program , but I need to ignore ones that start with the label "tbd_". So far I have something like [^tbd_] but that simply not match those characters.
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