大约有 28,000 项符合查询结果（耗时：0.0560秒） [XML]
Best practices: throwing exceptions from properties
...
Microsoft has its recommendations on how to design properties at http://msdn.microsoft.com/en-us/library/ms229006.aspx
Essentially, they recommend that property getters be lightweight accessors that are always safe to call. They recommend redesigning getters to be methods if exceptions ar...
The provider is not compatible with the version of Oracle client
...ssy about not mixing version numbers.
I've explained how to do this here: http://splinter.com.au/using-the-new-odpnet-to-access-oracle-from-c
Here's the gist of it though:
Download ODP.Net
Unzip the file
Unzip all the JAR's in it
Grab these dll's that were just unzipped:
oci.dll (renamed from '...
Should I use pt or px?
... This is the only correct answer. The quoted w3.org url is updated from http to https as: https://www.w3.org/Style/Examples/007/units.en.html
– hyyou2010
Jan 2 '17 at 15:29
8
...
Difference between Rebuild and Clean + Build in Visual Studio
...
From http://www.cs.tufts.edu/r/graphics/resources/vs_getting_started/vs_getting_started.htm, (just googled it):
Build means compile and link only the source files that have changed since the last build, while Rebuild means compil...
Count, size, length…too many choices in Ruby?
...
I found a good answare at http://blog.hasmanythrough.com/2008/2/27/count-length-size
In ActiveRecord, there are several ways to find out how many records
are in an association, and there are some subtle differences in how
they work.
post....
What is the difference between Unidirectional and Bidirectional JPA and Hibernate associations?
...so recommended to have bi-directional associations by the Hibernate docs:
http://docs.jboss.org/hibernate/core/3.3/reference/en/html/best-practices.html
Specifically:
Prefer bidirectional associations:
Unidirectional associations are more difficult to query. In a large
application, al...
How much overhead does SSL impose?
...re used. That's why it can be very helpful to enable SSL sessions for your HTTPS service, where many connections are made. For a long-lived connection, this "end-effect" isn't as significant, and sessions aren't as useful.
Here's an interesting anecdote. When Google switched Gmail to use HTTPS, n...
What exactly is Arel in Rails 3.0?
...deo series on ActiveRelation.
The first general tutorial can be viewed at http://Innovative-Studios.com/#pilot
share
|
improve this answer
|
follow
|
...
When do I need to use a semicolon vs a slash in Oracle SQL?
...s "re-execute last SQL or PL/SQL command that I just executed".
See
http://ss64.com/ora/syntax-sqlplus.html
Rule of thumb would be to use slash with things that do BEGIN .. END or where you can use CREATE OR REPLACE.
For inserts that need to be unique use
INSERT INTO my_table ()
SELECT &...
What's the difference between an exclusive lock and a shared lock?
...he file. However, other processes can request read locks.
More on that : http://www.gnu.org/software/libc/manual/html_node/File-Locks.html
share
|
improve this answer
|
fol...