大约有 48,000 项符合查询结果（耗时：0.0816秒） [XML]
How to get Last record from Sqlite?
I have a one table question_table and one ImageButton ( Back ). I need to get the last inserted record from the database after clicking on the Back .
...
Pandas count(distinct) equivalent
I am using pandas as a db substitute as I have multiple databases (oracle, mssql, etc) and I am unable to make a sequence of commands to a SQL equivalent.
...
CSS values using HTML5 data attribute [duplicate]
...e what you need, but will not for now.
Unfortunately, it's still a draft, and isn't fully implemented on major browsers.
It does work for content on pseudo-elements, though.
share
|
improve this a...
Why am I getting “undefined reference to sqrt” error even though I include math.h header? [duplicate
I'm very new to C and I have this code:
5 Answers
5
...
JavaScript set object key by variable [duplicate]
I am building some objects in JavaScript and pushing those objects into an array, I am storing the key I want to use in a variable then creating my objects like so:
...
How to attribute a single commit to multiple developers?
...commit is attributed to a single developer. The rise of Agile Engineering, and specifically pair programming, has lead to a situation where two developers have made a significant contribution to the same task, a bug fix for example.
...
jQuery: Check if div with certain class name exists
...uery can use to do the selection. Here's a test case where the div exists, and here's one where it doesn't exist.
– T.J. Crowder
Apr 26 '11 at 6:10
...
How to force a WPF binding to refresh?
...
if you use mvvm and your itemssource is located in your vm. just call INotifyPropertyChanged for your collection property when you want to refresh.
OnPropertyChanged("YourCollectionProperty");
...
linq query to return distinct field values from a list of objects
...f you just want the typeID values, it's easy - project to that with Select and then use the normal Distinct call.)
In MoreLINQ we have the DistinctBy operator which you could use:
var distinct = list.DistinctBy(x => x.typeID);
This only works for LINQ to Objects though.
You can use a groupin...
How to replace case-insensitive literal substrings in Java
...
Not as elegant perhaps as other approaches but it's pretty solid and easy to follow, esp. for people newer to Java. One thing that gets me about the String class is this: It's been around for a very long time and while it supports a global replace with regexp and a global replace with Str...