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In MySQL, can I copy one row to insert into the same table?
...ORARY TABLE IF EXISTS tmptable_1;
As a temp table, there should never be more than one record, so you don't have to worry about the primary key. Setting it to null allows MySQL to choose the value itself, so there's no risk of creating a duplicate.
If you want to be super-sure you're only getting...
How do you convert a byte array to a hexadecimal string, and vice versa?
...)
{
return BitConverter.ToString(ba).Replace("-","");
}
There are even more variants of doing it, for example here.
The reverse conversion would go like this:
public static byte[] StringToByteArray(String hex)
{
int NumberChars = hex.Length;
byte[] bytes = new byte[NumberChars / 2];
for ...
How do I find a stored procedure containing ?
...ourage blind/copy paste by less experienced engineers, and frustration for more senior engineers working with a new RDBMS such as SQL Server.
– DavidScherer
Oct 19 '18 at 17:28
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What is N-Tier architecture?
...e a few developer job postings recently that include a sentence that reads more or less like this: "Must have experience with N-Tier architecture", or "Must be able to develop N-Tier apps".
...
get dictionary key by value
...ot the key. Wouldn't types.FirstOrDefault(x => x.Value == "one").Key be more appropriate?
– floele
Jul 10 '13 at 7:27
20
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Java: Integer equals vs. ==
...
Lol, check mark back to you then! Looks like Colin has more than enough points already anyway.
– Jeremy Goodell
Sep 3 '10 at 18:28
2
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Responsive css background images
... using css screen size to change the images but I wanna know if there is a more practical way in order to achieve this.
19 ...
Excluding directories in os.walk
...u know that in one case, this optimization has reduced traversal time from more than 100 seconds to about 2 seconds. That's what I call a worthwhile optimization. :D
– antred
Apr 14 '16 at 13:09
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What is the benefit of using Fragments in Android, rather than Views?
...are for the backstack and lifecycle features. Otherwise, custom views are more light weight and simpler to implement.
At first, I actually tried to build a phone/tablet app using custom views. Everything appeared to work across phones AND tablets, even switching from single panel to split panel. ...
namespaces for enum types - best practices
...sonally, I'd use a namespace so that my ids could be shorter and hopefully more self-explanatory. Then application code could use a 'using namespace' directive and make everything more readable.
From your example above:
using namespace Colors;
void setPenColor( const e c ) {
switch (c) {
...