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How do I find duplicate values in a table in Oracle?
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13 Answers
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Is there an MD5 Fixed Point where md5(x) == x?
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Since an MD5 sum is 128 bits long, any fixed point would necessarily also have to be 128 bits ...
Pandas DataFrame Groupby two columns and get counts
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Followed by @Andy's answer, you can do following to solve your second question:
In [56]: df.g...
Gradient of n colors ranging from color 1 and color 2
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colorRampPalette could be your friend here:
colfunc <- colorRampPalette(c("black", "white"...
Count(*) vs Count(1) - SQL Server
Just wondering if any of you people use Count(1) over Count(*) and if there is a noticeable difference in performance or if this is just a legacy habit that has been brought forward from days gone past?
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Why does struct alignment depend on whether a field type is primitive or user-defined?
...t = new RefAndTwoInt32Wrappers();
test.text = "adsf";
test.x.x = 0x11111111;
test.y.x = 0x22222222;
Console.ReadLine(); // <=== Breakpoint here
When the breakpoint hits, use Debug + Windows + Memory + Memory 1. Switch to 4-byte integers and put &test in the Address fie...
Android Layout with ListView and Buttons
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137
I think this is what you are looking for.
<?xml version="1.0" encoding="utf-8"?>
<Re...
How is this fibonacci-function memoized?
...is asked for again. If we define some list, xs=[0..] and later ask for its 100th element, xs!!99, the 100th slot in the list gets "fleshed out", holding the number 99 now, ready for next access.
That is what that trick, "going-through-a-list", is exploiting. In normal doubly-recursve Fibonacci def...
How to ignore HTML element from tabindex?
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You can use tabindex="-1".
The W3C HTML5 specification supports negative tabindex values:
If the value is a negative integer
The user agent must set the element's tabindex focus flag, but should not allow the element to be reached using sequ...
jQuery: count number of rows in a table
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11 Answers
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