大约有 43,000 项符合查询结果（耗时：0.0915秒） [XML]
What is the actual use of Class.forName(“oracle.jdbc.driver.OracleDriver”) while connecting to a dat
...oad any drivers prior to JDBC 4.0 with the method Class.forName.)
Further reading (read: questions this is a dup of)
What purpose does Class.forName() serve if you don't use the return value?
How does Class.forName() work?
What does 'Class.forName("org.sqlite.JDBC");' do?
What is the purpose of 'C...
Are Stored Procedures more efficient, in general, than inline statements on modern RDBMS's? [duplica
...ning behind this is
outside the scope of this posting, but
for further reading see:
http://www.microsoft.com/technet/prodtechnol/sql/2005/frcqupln.mspx
and
http://msdn.microsoft.com/en-us/library/ms181055.aspx
and http://www.simple-talk.com/sql/performance/execution-plan-basics/
"In...
public friend swap member function
... and others mistakenly thought would be the case. If you were bit by this, read here.
In short: the member function is just noise, the specialization is ugly and incomplete, but the friend function is complete and works. And when you swap, either use boost::swap or an unqualified swap with std::s...
Can't seem to discard changes in Git
... true, makes git convert CRLF at the end of lines in text files to LF
when reading from the filesystem, and
convert in reverse when writing to the
filesystem. The variable can be set to
input, in which case the conversion
happens only while reading from the
filesystem but files are written out
with ...
What is the “FS”/“GS” register intended for?
...ability of segment registers in 64 bit mode. There was still a need for threads to access thread local store, and each thread needed a a pointer ... somewhere in the immediately accessible thread state (e.g, in the registers) ... to thread local store. Since Windows and Linux both used FS and GS (...
What is difference between functional and imperative programming languages?
...acteristics bring a number of benefits, including the following:
Increased readability and maintainability. This is because each function is designed to accomplish a specific task given its arguments. The function does not rely on any external state.
Easier reiterative development. Because the code...
Representing and solving a maze given an image
...e maze to make sure virtual traveler will not walk around it :)
Implement breadth-first search (BFS) in your favorite language and run it from the start. I prefer MATLAB for this task. As @Thomas already mentioned, there is no need to mess with regular representation of graphs. You can work with bin...
Running multiple async tasks and waiting for them all to complete
...doesn't start the tasks for you. You have to provide them "hot", meaning already started.
– Yuval Itzchakov
Aug 22 '16 at 8:11
2
...
The JPA hashCode() / equals() dilemma
...
Read this very nice article on the subject: Don't Let Hibernate Steal Your Identity.
The conclusion of the article goes like this:
Object identity is deceptively hard to implement correctly when
objects are persisted t...
Import CSV to mysql table
...'"'
lines terminated by '\n'
(uniqName, uniqCity, uniqComments)
as read on: Import CSV file directly into MySQL
EDIT
For your case, you'll need to write an interpreter first, for finding the first row, and assigning them as column names.
EDIT-2
From MySQL docs on LOAD DATA syntax:
...