大约有 20,000 项符合查询结果（耗时：0.0393秒） [XML]
How do I rename a column in a SQLite database table?
... writable_schema = 1;
UPDATE SQLITE_MASTER SET SQL = 'CREATE TABLE BOOKS ( title TEXT NOT NULL, publication_date TEXT)' WHERE NAME = 'BOOKS';
PRAGMA writable_schema = 0;
You will need to either close and reopen your connection or vacuum the database to reload the changes into the schema.
For exam...
Is there an equivalent for var_dump (PHP) in Javascript?
We need to see what methods/fields an object has in Javascript.
18 Answers
18
...
Make WPF window draggable, no matter what element is clicked
... Optional Advanced Example
In this example from DevExpress, we replace the title bar of a docking window with our own grey rectangle, then ensure that if the user clicks and drags said grey rectagle, the window will drag normally:
<dx:DXWindow x:Class="DXApplication1.MainWindow" Title="MainWindow...
What are WSGI and CGI in plain English?
...cess (embedded mode) or as a separate process (daemon mode), and loads the script into it. Each request results in a specific function in the script being called, with the request environment passed as arguments to the function.
CGI runs the script as a separate process each request and uses enviro...
Select records from NOW() -1 Day
...
And INTERVAL works as named, e.g. INTERVAL 1 DAY = 24 hours.
So if your script is cron'd to run at 03:00, it will miss the first three hours of records from the 'oldest' day.
To get the whole day use CURDATE() - INTERVAL 1 DAY. This will get back to the beginning of the previous day regardless o...
Fixed stroke width in SVG
... SVG Tiny 1.2, for example Opera 10. The fallback includes writing a small script to do the same, basically inverting the CTM and applying it on the elements that shouldn't scale.
If you want sharper lines you can also disable antialiasing (shape-rendering=optimizeSpeed or shape-rendering=crispEdge...
How does bash tab completion work?
...s are installed, and as Wrikken said, /etc/bash_completion contains a bash script which is then often executed at shell startup to configure this. Additional custom completion scripts may be placed in /etc/bash_completion.d; those are all sourced from /etc/bash_completion.
...
How do you merge two Git repositories?
... throwaway copy of it first.
Note Bene: You have to modify the substitute script inside the sed command in the case that you use non-ascii characters (or white characters) in file names or path. In that case the file location inside a record produced by "ls-files -s" begins with quotation mark.
(2...
How to get started with developing Internet Explorer extensions?
...sual Studio as Administrator to build the solution, so that the post-build script can register the BHO (needs registry access).
Start by creating a class library.
I called mine InternetExplorerExtension.
Add these references to the project:
Interop.SHDocVw: COM tab / search for "Microsoft Intern...
Get an element by index in jQuery
...{'background-color':'#343434'});
docs:
.get(index) Returns: Element
Description: Retrieve the DOM elements matched by the jQuery object.
See: https://api.jquery.com/get/
.eq(index) Returns: jQuery
Description: Reduce the set of matched elements to the one at the specified index.
See: https:...