大约有 47,000 项符合查询结果(耗时:0.0264秒) [XML]

https://stackoverflow.com/ques... 

jquery get all form elements: input, textarea & select

Is there an easy way (without listing them all separately) in jquery to select all form elements and only form elements. 12...
https://stackoverflow.com/ques... 

SQL to find the number of distinct values in a column

I can select all the distinct values in a column in the following ways: 11 Answers 11 ...
https://stackoverflow.com/ques... 

jQuery - setting the selected value of a select control via its text description

I have a select control, and in a javascript variable I have a text string. 21 Answers ...
https://stackoverflow.com/ques... 

How to create .ipa file using Xcode?

... In Xcode Version 10.0 Go to Window -> Organizer Then select your app archive from archives Then click the "Distribute App" button on right panel Then follow the below steps Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 : Finally select the place you want to sa...
https://stackoverflow.com/ques... 

The SQL OVER() clause - when and why is it useful?

...ated values and then join it back to the original rowset, i.e. like this: SELECT orig.[Partition], orig.Value, orig.Value * 100.0 / agg.TotalValue AS ValuePercent FROM OriginalRowset orig INNER JOIN ( SELECT [Partition], SUM(Value) AS TotalValue FROM OriginalRowset G...
https://stackoverflow.com/ques... 

What is the syntax for an inner join in LINQ to SQL?

...ke: from t1 in db.Table1 join t2 in db.Table2 on t1.field equals t2.field select new { t1.field2, t2.field3} It would be nice to have sensible names and fields for your tables for a better example. :) Update I think for your query this might be more appropriate: var dealercontacts = from conta...
https://stackoverflow.com/ques... 

Select text on input focus

I have a text input. When the input receives focus I want to select the text inside of the input. 10 Answers ...
https://stackoverflow.com/ques... 

Which method performs better: .Any() vs .Count() > 0?

...re generated SQLs. Beauties as you can see ;) ANY: exec sp_executesql N'SELECT TOP (1) [Project2].[ContactId] AS [ContactId], [Project2].[CompanyId] AS [CompanyId], [Project2].[ContactName] AS [ContactName], [Project2].[FullName] AS [FullName], [Project2].[ContactStatusId] AS [ContactStatusI...
https://stackoverflow.com/ques... 

When to use SELECT … FOR UPDATE?

Please help me understand the use-case behind SELECT ... FOR UPDATE . 2 Answers 2 ...
https://stackoverflow.com/ques... 

Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc

I've heard that SELECT * is generally bad practice to use when writing SQL commands because it is more efficient to SELECT columns you specifically need. ...