大约有 40,000 项符合查询结果（耗时：0.0328秒） [XML]
How to generate a Dockerfile from an image?
...
Can you describe your last comment in greater detail? Is everything in / just tar'ed as normal? Or are there special cases?
– Robert Lugg
Jan 28 at 19:33
...
Should struct definitions go in .h or .c file?
...r. If the definition of the structure is not visible to the compiler, the details of that definition cannot be used. A declaration without a definition (e.g. just struct s;) causes the compiler to fail if anything tries to look inside struct s, while still allowing it to e.g. compile struct s *foo...
How to prepend a string to a column value in MySQL?
...
update TICKET set status_details = CONCAT(status _details,'abc') where ticket_id=75108; ERROR 1583 (42000): Incorrect parameters in the call to native function 'CONCAT'
– nirmesh khandelwal
Jul 1 '13 at 13:45
...
What are '$$' used for in PL/pgSQL
...an
AS
$func$
BEGIN
...
END
$func$ LANGUAGE plpgsql STRICT IMMUTABLE;
Details:
Insert text with single quotes in PostgreSQL
As to your second question:
Read the most excellent manual on CREATE FUNCTION to understand the last line of your example.
...
How to create your own library for Android development to be used in every program you write?
... Application project by adding it to list on the same property page.
More detailed instructions here in Working with Library Projects section
share
|
improve this answer
|
f...
When should one use RxJava Observable and when simple Callback on Android?
...t you have an Instagram-clone, and you want to retrieve 2 JSONs:
1. getUserDetails()
2. getUserPhotos()
You want to load these two JSONs in parallel, and when both are loaded, the page should be displayed.
The callback variant will become a bit more difficult: you have to create 2 callbacks, store ...
What's the difference between interface and @interface in java?
...nterface exposes a contract without exposing the underlying implementation details. In Object Oriented Programming, interfaces define abstract types that expose behavior, but contain no logic. Implementation is defined by the class or type that implements the interface.
@interface : (Annotation typ...
Android buildscript repositories: jcenter VS mavencentral
...
At Bintray I just rebloged a very detailed blog post describing the reasons why Google made this change. Here are the most important points:
JCenter is a Java repository in Bintray, which is the largest repo in the world for Java and Android OSS libraries, ...
HTML 5 Favicon - Support?
...s Phone Users for your website one must use the following code:
Here are detailed instructions from Microsoft but here is a synopsis:
Step 1
Create a square image for your website, to support hi-res screens create it at 768x768 pixels in size.
Step 2
Add a hidden overlay of this image. Here is...
What is the bower (and npm) version syntax?
...ich is short for 'Semantic Versioning'. You can find documentation for the detailed syntax of SemVer as used in Bower and NPM on the API for the semver parser within Node/npm. You can learn more about the underlying spec (which does not mention ~ or other syntax details) at semver.org.
There's a su...