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SQL Server indexes - ascending or descending, what difference does it make?
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CREATE TABLE T1( [ID] [int] IDENTITY NOT NULL,
[Filler] [char](8000) NULL,
PRIMARY KEY CLUSTERED ([ID] ASC))
The Query
SELECT TOP 10 *
FROM T1
ORDER BY ID DESC
Uses an ordered scan with scan direction BACKWARD as can be seen in the Execution Plan. There is a s...
Add alternating row color to SQL Server Reporting services report
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Function AlternateColor(ByVal OddColor As String, _
ByVal EvenColor As String, ByVal Toggle As Boolean) As String
If Toggle Then bOddRow = Not bOddRow
If bOddRow Then
Return OddColor
Else
Return EvenColor
End If
End Function
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How to evaluate a math expression given in string form?
I'm trying to write a Java routine to evaluate math expressions from String values like:
25 Answers
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Can you use a trailing comma in a JSON object?
...item in the object or array. For example, code to output from an array of strings might look like (in a C++ like pseudocode):
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What is base 64 encoding used for?
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But why is base64 method used to encode string data? eg in javascript atob function Is there meaning the server to encode a json file to base64 format? Special characters could be a use case but why not utf8 in that case, are they equibalent? Any further resource ...
Comma in C/C++ macro
...in most contexts.
A nice trick to workaround this is that in C++, you can extract a typename from a parenthesized type name using a function type:
template<typename T> struct argument_type;
template<typename T, typename U> struct argument_type<T(U)> { typedef U type; };
#define F...
How can I pretty-print JSON using Go?
...o turn into JSON. The question also mentions pretty-printing just any JSON string, and that's what I was trying to do. I just wanted to pretty-log some JSON from a POST request (specifically a CSP violation report).
To use MarshalIndent, you would have to Unmarshal that into an object. If you need...
What are the differences between delegates and events?
... this way:
public class ArgsSpecial : EventArgs
{
public ArgsSpecial (string val)
{
Operation=val;
}
public string Operation {get; set;}
}
public class Animal
{
// Empty delegate. In this way you are sure that value is always != null
// because no one outside of ...
What is the size of column of int(11) in mysql in bytes?
...ied as zerofill. Otherwise, it will just be displayed as number 1, without extra digits. @Gaurav - don't mix how mysql displays data and how it stores it, those are two different things. What you see is not what it really might be.
– Michael J.V.
Apr 12 '11 at ...
What is the purpose of fork()?
... child process to complete
waitpid(child_process_id, ...); // omitted extra args for brevity
// child process finished!
} else {
// Fork returns 0 in the child process. Child executes this.
// new argv array for the child process
const char *argv[] = {"arg1", "arg2", "arg3", ...