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SQL command to display history of queries
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try
cat ~/.mysql_history
this will show you all mysql commands ran on the system
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Change Schema Name Of Table In SQL
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sys.schemas is a table that contains all the schemas for the database. The Exec('...') just runs a dynamic SQL call, in this case it is needed because a CREATE SCHEMA command must be the first statement in a query batch and executing as dynamic SQL gets you this...
Is there a way to measure how sorted a list is?
...er according to some ordering < on the set of T's.
From Wikipedia:
Formally, let A(1), A(2), ..., A(n) be a sequence of n numbers.If i < j and A(i) > A(j), then the pair (i,j) is called an inversion of A.
The inversion number of a sequence is one common measure of its sortedness.Formally, ...
Find the most common element in a list
...roups by the item only (via operator.itemgetter). The auxiliary function, called once per grouping during the max computation, receives and internally unpacks a group - a tuple with two items (item, iterable) where the iterable's items are also two-item tuples, (item, original index) [[the items of ...
What is the id( ) function used for?
... Python objects.
Is it the same with memory addresses in C?
Conceptually, yes, in that they are both guaranteed to be unique in their universe during their lifetime. And in one particular implementation of Python, it actually is the memory address of the corresponding C object.
If yes, wh...
What is the yield keyword used for in C#?
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The yield keyword actually does quite a lot here.
The function returns an object that implements the IEnumerable<object> interface. If a calling function starts foreaching over this object, the function is called again until it "yields". Th...
How do you tell Resharper that a method parameter is a string containing a CSS class?
...ate a new type like CssClass.
You just need to add as a prebuilt event a call to a generator which parses every css in the project and dynamically create a class like that:
public class CssClass
{
public string Name { get; private set; }
public static CssClass In = new CssClass("in");
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Can I create a One-Time-Use Function in a Script or Stored Procedure?
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answered Jun 11 '09 at 14:32
Joel CoehoornJoel Coehoorn
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Converting bool to text in C++
...ch shows you the console output and explains more about the API.
Additionally using std::boolalpha will modify the global state of std::cout, you may want to restore the original behavior go here for more info on restoring the state of std::cout.
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Android: Getting a file URI from a content URI?
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Actually, I just re-read the docs for getContentResolver().openInputStream(), and it works automatically for schemes of "content" or "file", so you don't need to check the scheme... if you can safely assume that it's always going...