大约有 30,000 项符合查询结果(耗时:0.0317秒) [XML]
Case in Select Statement
...syntax and usage. This is from the Transact SQL Reference - CASE page.
http://msdn.microsoft.com/en-us/library/ms181765.aspx
USE AdventureWorks2012;
GO
SELECT ProductNumber, Name, "Price Range" =
CASE
WHEN ListPrice = 0 THEN 'Mfg item - not for resale'
WHEN ListPrice < 50 TH...
PHP server on local machine?
...
Install and run XAMPP: http://www.apachefriends.org/en/xampp.html
share
|
improve this answer
|
follow
|
...
What Java ORM do you prefer, and why? [closed]
...ed to know why you want to add abstraction on top of JDBC. I can recommend http://www.jooq.org to you (disclaimer: I'm the creator of jOOQ, so this answer is biased). jOOQ embraces the following paradigm:
SQL is a good thing. Many things can be expressed quite nicely in SQL. There is no need for c...
difference between foldLeft and reduceLeft in Scala
...
To really understand what are you doing with fold/reduce,
check this: http://wiki.tcl.tk/17983
very good explanation. once you get the concept of fold,
reduce will come together with the answer above:
list.tail.foldLeft(list.head)(_)
...
Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
What is Python buffer type for?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Who is listening on a given TCP port on Mac OS X?
... -P flag is for displaying raw port numbers instead of resolved names like http, ftp or more esoteric service names like dpserve, socalia.
See the comments for more options.
For completeness, because frequently used together:
To kill the PID:
kill -9 <PID>
# kill -9 60401
...
How to create JSON string in C#
I just used the XmlWriter to create some XML to send back in an HTTP response. How would you create a JSON string. I assume you would just use a stringbuilder to build the JSON string and them format your response as JSON?
...
How to log request and response body with Retrofit-Android?
...by Marcus Pöhls
Logging In Retrofit 2
Retrofit 2 completely relies on OkHttp for any network operation. Since OkHttp is a peer dependency of Retrofit 2, you won’t need to add an additional dependency once Retrofit 2 is released as a stable release.
OkHttp 2.6.0 ships with a logging interceptor...
Update statement with inner join on Oracle
...bonus_eligible = 'N') t
set t.bonus = 0;
See this link for more details.
http://geekswithblogs.net/WillSmith/archive/2008/06/18/oracle-update-with-join-again.aspx.
Also, ensure that there are primary keys on all the tables you are joining.
...