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Are PHP short tags acceptable to use?
...not use any of the other features that might not be supported on a server? MYSQL vs MYSQLI? You will waste your time little by little, again and again writing long tags just to avoid a tiny chance of spending a little time to change to a better host.
– Dean Or
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Using arrays or std::vectors in C++, what's the performance gap?
...all efficiencies, say about 97% of the time: premature optimization is the root of all evil. Yet we should not pass up our opportunities in that critical 3%".
(Thanks to metamorphosis for the full quote)
Don't use a C array instead of a vector (or whatever) just because you believe it's faster as i...
Are Java static calls more or less expensive than non-static calls?
... If I trained a parrot to say "premature opimisation is the root of all evil" I'd get 1000 votes from people who know as much about performance as the parrot.
– rghome
Jan 28 '19 at 14:54
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What is the purpose of global.asax in asp.net
.../end events and for global error handling.
When used, it should be in the root of the website.
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How do I automatically update a timestamp in PostgreSQL
...omatically update the time stamp when a new row is inserted as I can do in MySQL using CURRENT_TIMESTAMP.
4 Answers
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When use getOne and findOne methods Spring Data JPA
... 8 hours to know the silly mistake.
I have testing spring+hibernate+dozer+Mysql project. To be clear.
I have User entity, Book Entity. You do the calculations of mapping.
Were the Multiple books tied to One user. But in UserServiceImpl i was trying to find it by getOne(userId);
public UserDTO ge...
Why can't I access DateTime->date in PHP's DateTime class?
... Why wouldn't one want this exact format? It is the same format as MySQL has for dates.
– Elia Iliashenko
Jul 16 '15 at 16:51
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Limiting the number of records from mysqldump?
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As skaffman says, use the --where option:
mysqldump --opt --where="1 limit 1000000" database
Of course, that would give you the first million rows from every table.
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Parallel.ForEach vs Task.Factory.StartNew
.... I made a research calling the following method:
public static double SumRootN(int root)
{
double result = 0;
for (int i = 1; i < 10000000; i++)
{
result += Math.Exp(Math.Log(i) / root);
}
return result;
}
Execution of this method takes about 0.5se...
How do SQL EXISTS statements work?
... FROM SUPPLIERS JOIN ORDERS ... on SQL Server, haven't tested on Oracle or MySQL lately.
– OMG Ponies
May 1 '11 at 16:40
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