大约有 44,000 项符合查询结果(耗时:0.0212秒) [XML]

https://stackoverflow.com/ques... 

Selecting all text in HTML text input when clicked

... You can use this javascript snippet: <input onClick="this.select();" value="Sample Text" /> But apparently it doesn't work on mobile Safari. In those cases you can use: <input onClick="this.setSelectionRange(0, this.value.length)" value="Sample Text" /> ...
https://stackoverflow.com/ques... 

How to automatically select all text on focus in WPF TextBox?

If I call SelectAll from a GotFocus event handler, it doesn't work with the mouse - the selection disappears as soon as mouse is released. ...
https://stackoverflow.com/ques... 

Return Boolean Value on SQL Select Statement

How to return a boolean value on SQL Select Statement? 9 Answers 9 ...
https://stackoverflow.com/ques... 

Multiple select statements in Single query

... SELECT ( SELECT COUNT(*) FROM user_table ) AS tot_user, ( SELECT COUNT(*) FROM cat_table ) AS tot_cat, ( SELECT COUNT(*) FROM course_table ) AS tot_course ...
https://stackoverflow.com/ques... 

How to ensure a form field is submitted when it is disabled?

I have a select form field that I want to mark as "readonly", as in the user cannot modify the value, but the value is still submitted with the form. Using the disabled attribute prevents the user from changing the value, but does not submit the value with the form. ...
https://stackoverflow.com/ques... 

Select n random rows from SQL Server table

I've got a SQL Server table with about 50,000 rows in it. I want to select about 5,000 of those rows at random. I've thought of a complicated way, creating a temp table with a "random number" column, copying my table into that, looping through the temp table and updating each row with RAND() , and ...
https://stackoverflow.com/ques... 

Select top 10 records for each category

... If you are using SQL 2005 you can do something like this... SELECT rs.Field1,rs.Field2 FROM ( SELECT Field1,Field2, Rank() over (Partition BY Section ORDER BY RankCriteria DESC ) AS Rank FROM table ) rs WHERE Rank <= 10 If y...
https://stackoverflow.com/ques... 

Simplest way to do a recursive self-join?

... WITH q AS ( SELECT * FROM mytable WHERE ParentID IS NULL -- this condition defines the ultimate ancestors in your chain, change it as appropriate UNION ALL SELECT m.* FROM mytable m ...
https://stackoverflow.com/ques... 

How to remove the default arrow icon from a dropdown list (select element)?

I want to remove the dropdown arrow from a HTML <select> element. For example: 12 Answers ...
https://stackoverflow.com/ques... 

SQL Server 2008: How to query all databases sizes?

... with fs as ( select database_id, type, size * 8.0 / 1024 size from sys.master_files ) select name, (select sum(size) from fs where type = 0 and fs.database_id = db.database_id) DataFileSizeMB, (select sum(size) from fs wh...