大约有 12,000 项符合查询结果(耗时:0.0308秒) [XML]
What is the most ridiculous pessimization you've seen? [closed]
...his database.
Me: Uh huh. So the consultant who sells database re-design services thinks we need a database re-design....
The conversation went on and on like this. Afterward, I took another look at the table in question and determined that it probably could be narrowed with some simple normaliza...
T-SQL: Opposite to string concatenation - how to split string into multiple records [duplicate]
... Pieces(pn, start, stop) AS (
SELECT 1, 1, CHARINDEX(@sep, @s)
UNION ALL
SELECT pn + 1, stop + 1, CHARINDEX(@sep, @s, stop + 1)
FROM Pieces
WHERE stop > 0
)
SELECT pn,
SUBSTRING(@s, start, CASE WHEN stop > 0 THEN stop-start ELSE 512 END) AS s
FRO...
How to secure an ASP.NET Web API [closed]
I want to build a RESTful web service using ASP.NET Web API that third-party developers will use to access my application's data.
...
The opposite of Intersect()
..., then this should do the trick:
var nonintersect = array1.Except(array2).Union( array2.Except(array1));
This will not be the most performant solution, but for small lists it should work just fine.
share
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...
Handle ModelState Validation in ASP.NET Web API
...
Add below code in startup.cs file
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2).ConfigureApiBehaviorOptions(options =>
{
options.InvalidModelStateResponseFactory = (context) =>
{
...
Do I need a Global.asax.cs file at all if I'm using an OWIN Startup.cs class and move all configurat
...gives you the option to host your application outside of iis, in a windows service for example
– Alexander Derck
May 11 '17 at 22:35
...
Node.js vs .Net performance
.../O requests that block the thread (call to a DB, make an http request to a service, read a file from disk). These blocking requests mean that your valuable thread from the thread pool is doing nothing. The more blocking you have, the less LOAD your ASP.NET app is going to be able to serve.
To pre...
Best way to implement request throttling in ASP.NET MVC?
...ictions for IIS 7.0 is a module that provides protection against denial of service and brute force attacks on web server and web sites. Such protection is provided by temporarily blocking IP addresses of the HTTP clients who make unusually high number of concurrent requests or who make large number ...
Grant execute permission for a user on all stored procedures in database?
...ers of the db_execproc database role
--...add a user e.g. for the NETWORK SERVICE login that asp.net uses
CREATE USER asp_net
FOR LOGIN [NT AUTHORITY\NETWORK SERVICE]
WITH DEFAULT_SCHEMA=[dbo]
GO
--...and add them to the roles you need
EXEC sp_addrolemember N'db_execproc', 'asp_net';
EXEC sp_add...
Oracle Differences between NVL and Coalesce
...guments to be of same datatype.
COALESCE gives issues in queries which use UNION clauses. Example
below
COALESCE is ANSI standard where as NVL is Oracle specific.
Examples for the third case. Other cases are simple.
select nvl('abc',10) from dual; would work as NVL will do an implicit conversion ...