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Optional Parameters with C++ Macros
... You could get a clear compilation error if you converted the selected argument which is supposed to be a MACRO name to string using # (the pound sign) and compared it's first n characters with the expected prefix and if there is no match, printed an informative error.
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What do Clustered and Non clustered index actually mean?
...CLARE @C1 AS CURSOR,
@X AS INT
SET @C1 = CURSOR FAST_FORWARD
FOR SELECT number
FROM master..spt_values
WHERE type = 'P'
AND number BETWEEN 1 AND 100
ORDER BY CRYPT_GEN_RANDOM(4)
OPEN @C1;
FETCH NEXT FROM @C1 INTO @X;
WHILE @@FETCH_STATUS = 0
BEGIN
INSE...
What are good examples of genetic algorithms/genetic programming solutions? [closed]
...by just mixing bits from two parents), with the likelihood of a gene being selected as a parent being proportional to the profit it produced. I also added the possibility of point mutations to spice things up a bit. After a few hundred generations of this, I ended up with a population of genes tha...
Inserting a Python datetime.datetime object into MySQL
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when iserting into t-sql
this fails:
select CONVERT(datetime,'2019-09-13 09:04:35.823312',21)
this works:
select CONVERT(datetime,'2019-09-13 09:04:35.823',21)
easy way:
regexp = re.compile(r'\.(\d{6})')
def to_splunk_iso(dt):
"""Converts the datetime ...
Simple Pivot Table to Count Unique Values
...ually solves a slightly different problem.
If you have that version, then select your data to create a pivot table, and when you create your table, make sure the option 'Add this data to the Data Model' tickbox is check (see below).
Then, when your pivot table opens, create your rows, columns an...
Is it possible to force Excel recognize UTF-8 CSV files automatically?
...el
Import the data using Data-->Import External Data --> Import Data
Select the file type of "csv" and browse to your file
In the import wizard change the File_Origin to "65001 UTF" (or choose correct language character identifier)
Change the Delimiter to comma
Select where to import to and ...
Visual Studio: Relative Assembly References Paths
...n Visual Studio GUI by right-clicking the project in Solution Explorer and selecting Add Reference...
Find the *.csproj where this reference exist and open it in a text editor
Edit the < HintPath > to be equal to
<HintPath>..\..\myReferences\myDLL.dll</HintPath>
This now refer...
Using CSS how to change only the 2nd column of a table
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@Deeksy - That's not accurate, it doesn't care what the selector is. nth-child is applied after finding the element, and it's nth compared to whatever parent it has, no matter if it was in the selector or not. You can see this working here: jsfiddle.net/JQQPz
...
Getting the value of an attribute in XML
...t like this, assuming the context is the parent element:
<xsl:value-of select="name/@attribute1" />
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d3 axis labeling
...e charts. You are given the building blocks, an axis component, data join, selection and SVG. It's your job to put them together to form a chart!
If you want a conventional chart, i.e. a pair of axes, axis labels, a chart title and a plot area, why not have a look at d3fc? it is an open source set ...