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What is the reason not to use select *?
... you can then optimize to be efficient.
When you use select * you're make it impossible to profile, therefore you're not writing clear & straightforward code and you are going against the spirit of the quote. select * is an anti-pattern.
So selecting columns is not a premature optimization. ...
Converting Secret Key into a String and Vice Versa
I am generating a key and need to store it in DB, so I convert it into a String, but to get back the key from the String. What are the possible ways of accomplishing this?
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Why does Typescript use the keyword “export” to make classes and interfaces public?
While dabbling with Typescript I realised my classes within modules (used as namespaces) were not available to other classes unless I wrote the export keyword before them, such as:
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C++ templates that accept only certain types
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I suggest using Boost's static assert feature in concert with is_base_of from the Boost Type Traits library:
template<typename T>
class ObservableList {
BOOST_STATIC_ASSERT((is_base_of<List, T>::value)); //Yes, the double parentheses are needed, otherwise the comma ...
It is more efficient to use if-return-return or if-else-return?
Suppose I have an if statement with a return . From the efficiency perspective, should I use
8 Answers
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Java “user.dir” property - what exactly does it mean?
I want to use user.dir dir as a base dir for my unit tests (that creates a lot of files). Is it correct that this property points to the current working directory (e.g. set by the 'cd' command)?
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Effect of NOLOCK hint in SELECT statements
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1) Yes, a select with NOLOCK will complete faster than a normal select.
2) Yes, a select with NOLOCK will allow other queries against the effected table to complete faster than a normal select.
Why would this be?
NOLOCK typically (dependin...
XDocument.ToString() drops XML Encoding Tag
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Either explicitly write out the declaration, or use a StringWriter and call Save():
using System;
using System.IO;
using System.Text;
using System.Xml.Linq;
class Test
{
static void Main()
{
string xml = @"&l...
How to emulate GPS location in the Android Emulator?
I want to get longitude and latitude in Android emulator for testing.
33 Answers
33
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Git log to get commits only for a specific branch
I want to list all commits that are only part of a specific branch.
11 Answers
11
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