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Unique (non-repeating) random numbers in O(1)?
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Initialize an array of 1001 integers with the values 0-1000 and set a variable, max, to the current max index of the array (starting with 1000). Pick a random number, r, between 0 and max, swap the number at the position r with the number at position max and return the number now at pos...
Save PL/pgSQL output from PostgreSQL to a CSV file
... which copy to/from a PHP array, which may not be efficient for large data sets.
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Visual Studio move project to a different folder
...e “File path” entry that allows you to select the new project location
Set the new path
Right click on the project and click reload
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Is there a Python caching library?
...'t find anything so far. I need a simple dict -like interface where I can set keys and their expiration and get them back cached. Sort of something like:
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Convert to binary and keep leading zeros in Python
I'm trying to convert an integer to binary using the bin() function in Python. However, it always removes the leading zeros, which I actually need, such that the result is always 8-bit:
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What is the meaning of the prefix N in T-SQL statements and when should I use it?
...ing is in Unicode
(the N actually stands for National language character set). Which
means that you are passing an NCHAR, NVARCHAR or NTEXT value, as
opposed to CHAR, VARCHAR or TEXT.
To quote from Microsoft:
Prefix Unicode character string constants with the letter N. Without
the N pr...
TSQL Pivot without aggregate function
... do I prevent - Warning: Null value is eliminated by an aggregate or other SET operation
– GiddyUpHorsey
Oct 17 '18 at 20:05
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Why does the JVM still not support tail-call optimization?
....3 reveals that
Hotspot doesn't perform the
transformation. At default settings,
the stack space is exhausted in less
than a second on my machine. On the
other hand, IBM's JVM for version 1.3
purrs along without a problem,
indicating that it does transform the
code in this way.
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Bash array with spaces in elements
...e shows why one may encounter issues in some cases. It may be possible to set the IFS="" on a single line, but it may still be more confusing than the other solution.
– arntg
May 26 '17 at 18:05
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How do I create a SQL table under a different schema?
...nd the schema owner is "Admin".
4. Add users to the schema as required and set their permissions:
5. Add any extended properties (via the Extended Properties tab)
6. Click OK.
Add a Table to the New Schema "MySchema"
1. In Object Explorer, right ...