大约有 44,000 项符合查询结果（耗时：0.0596秒） [XML]
Return a value if no rows are found in Microsoft tSQL
... returned. I'd prefer that false (0) is returned in that scenario. Looking for the simplest method to account for no records.
...
Entity Framework Migrations renaming tables and columns
...m stored procedure and I guess that took care of everything, including the foreign keys with the new column name.
public override void Up()
{
RenameTable("ReportSections", "ReportPages");
RenameTable("ReportSectionGroups", "ReportSections");
RenameColumn("ReportPages", "Group_Id", "Sect...
How do I get the YouTube video ID from a URL?
...
You don't need to use a regular expression for this.
var video_id = window.location.search.split('v=')[1];
var ampersandPosition = video_id.indexOf('&');
if(ampersandPosition != -1) {
video_id = video_id.substring(0, ampersandPosition);
}
...
Typing Enter/Return key using Python and Selenium?
I'm looking for a quick way to type and Enter or Return key in Selenium. Unfortunately the form I'm trying to test (not my own code so I can't modify) doesn't have a Submit button. When working with it manually, I just type ENTER or RETURN . I need to know how to do that with the Selenium type ...
SQL Server: Filter output of sp_who2
...n easy way to filter the output of sp_who2? Say I wanted to just show rows for a certain database, for example.
12 Answers
...
Android: How to bind spinner to custom object list?
...wer. You can also go with a custom adapter, but the solution below is fine for simple cases.
Here's a re-post:
So if you came here because you want to have both labels and values in the Spinner - here's how I did it:
Just create your Spinner the usual way
Define 2 equal size arrays in your array...
Passing A List Of Objects Into An MVC Controller Method Using jQuery Ajax
...ethod,
the argument "things" is null. I've tried this using a type of List for
the argument, but that doesn't work either. What am I doing wrong?
...
Is it possible to rename a maven jar-with-dependencies?
...ug in the recent versions of the assembly-plugin - they've removed support for classifiers, but the id is fixed if you use a built-in descriptor, so you end up with a big daft name.
As a workaround, you can copy the assembly descriptor used by the jar-with-dependencies descriptor and modify the id....
Fragment is not being replaced but put on top of the previous one
...tainer that you added the first fragment to.
You can refer to this link for more details.
share
|
improve this answer
|
follow
|
...
Create unique constraint with null columns
...mplementing the desired constraint.
Possible drawbacks: you cannot have a foreign key referencing (user_id, menu_id, recipe_id), you cannot base CLUSTER on a partial index, and queries without a matching WHERE condition cannot use the partial index. (It seems unlikely you'd want a FK reference thre...