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Oracle “Partition By” Keyword
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The PARTITION BY clause sets the range of records that will be used for each "GROUP" within the OVER clause.
In your example SQL, DEPT_COUNT will return the number of employees within that department for every employee record. (It is as if you're de-nomali...
Ruby optional parameters
...nt section in the method and removing all ASCII values that are not in our range (32-126)
Alternatively, we could had issued the value as nil in the parameters. Which would look similar to the following code block:
def ascii_to_text(top, bottom, keep = nil)
if keep.nil?
self.map{|x| if x >...
Replace part of a string with another string
...a substring within a string (find), and a function to replace a particular range in a string with another string (replace), so you can combine those to get the effect you want:
bool replace(std::string& str, const std::string& from, const std::string& to) {
size_t start_pos = str.fi...
MySQL InnoDB not releasing disk space after deleting data rows from table
... problem of space reclaiming is, Create multiple partitions within table - Range based, Value based partitions and just drop/truncate the partition to reclaim the space, which will release the space used by whole data stored in the particular partition.
There will be some changes needed in table sc...
Find a pair of elements from an array whose sum equals a given number
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@codaddict But what if array is very large ? I mean the range of values in it is very large ? So, the hash solution will be less practical then. Any alternate and optimal method for the same ?
– Prashant Singh
Oct 22 '12 at 15:14
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How to determine a Python variable's type?
...en converting a
non-string. If the argument is outside the integer range a long object
will be returned instead.
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How to remove \xa0 from string in Python?
...rror: 'ascii' codec can't decode byte 0xa0 in position 397: ordinal not in range(128).
– gwg
May 28 '15 at 22:15
Was s...
How can I read inputs as numbers?
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n=int(input())
for i in range(n):
n=input()
n=int(n)
arr1=list(map(int,input().split()))
the for loop shall run 'n' number of times . the second 'n' is the length of the array.
the last statement maps the integers to a list and takes i...
Linux command (like cat) to read a specified quantity of characters
...e # returns the last 100 bytes in the file
You can combine these to get ranges of bytes. For example, to get the second 100 bytes from a file, read the first 200 with head and use tail to get the last 100:
head -c 200 file | tail -c 100
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How do I check that a number is float or integer?
...e goal is to check for signed int32 values. So this won't work with out of range numbers. isInteger(5000000000) will return false which is wrong!
– Onur Yıldırım
Jan 2 '15 at 20:51
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