大约有 15,208 项符合查询结果（耗时：0.0369秒） [XML]
How to get last inserted id?
...verConnection); // initialize the query environment
SqlDataReader myReader = mySqlCommand.ExecuteReader(); // last inserted ID is recieved as any resultset on the first column of the first row
int LastInsertedId = 0; // this value will be changed if insertion suceede
...
Why does modern Perl avoid UTF-8 by default?
...ce you successfully create a file by a given name, that when you run ls or readdir on its enclosing directory, you’ll actually find that file with the name you created it under is buggy, broken, and wrong. Stop being surprised by this!
Code that believes UTF-16 is a fixed-width encoding is stupid,...
What are database normal forms and can you give examples? [closed]
...include the example in the answer itself. A casual user should be able to read your answer and get some value from it without having to click the blog link. The answer should be self-contained, in other words.
– Robert Harvey
Oct 22 '12 at 23:03
...
AngularJS HTTP post to PHP and undefined
...e to just use the default angularjs setting of application/json as header, read the raw input in PHP, and then deserialize the JSON.
That can be achieved in PHP like this:
$postdata = file_get_contents("php://input");
$request = json_decode($postdata);
$email = $request->email;
$pass = $request...
What is the use of the %n format specifier in C?
...
@jamesdlin: My mistake. I'm sorry.. I didn't know where I read that.
– Jack
Jun 20 '14 at 18:22
1
...
What is in your .vimrc? [closed]
...h"), ' ')
" Remove any trailing whitespace that is in the file
autocmd BufRead,BufWrite * if ! &bin | silent! %s/\s\+$//ge | endif
" Restore cursor position to where it was before
augroup JumpCursorOnEdit
au!
autocmd BufReadPost *
\ if expand("<afile>:p:h") !=? $TEMP |
...
What is the performance of Objects/Arrays in JavaScript? (specifically for Google V8)
... it all [as jjrv pointed out], V8 array writes are slightly faster than V8 reads =O
Note: These metrics applies only to large array/objects which v8 does not "entirely optimise out". There can be very isolated optimised performance cases for array/object size less then an arbitrary size (24?). Mor...
Does Foreign Key improve query performance?
... performance
Foreign key constraint improve performance at the time of reading
data but at the same time it slows down the performance at the time of
inserting / modifying / deleting data.
In case of reading the query, the optimizer can use foreign key constraints to
create more effi...
How do I use IValidatableObject?
......I'm not registered so I can't vote him up, please do so if anybody else reads this.
Here's how to accomplish what I was trying to do.
Validatable class:
public class ValidateMe : IValidatableObject
{
[Required]
public bool Enable { get; set; }
[Range(1, 5)]
public int Prop1 { ...
Selecting data from two different servers in SQL Server
...s the enterprise.
The ability to address diverse data sources similarly.
Read more about Linked Servers.
Follow these steps to create a Linked Server:
Server Objects -> Linked Servers -> New Linked Server
Provide Remote Server Name.
Select Remote Server Type (SQL Server or Other).
Select ...