大约有 47,000 项符合查询结果(耗时:0.0282秒) [XML]

https://stackoverflow.com/ques... 

jQuery get value of selected radio button

The problem statement is simple. I need to see if user has selected a radio button from a radio group. Every radio button in the group share same id. ...
https://stackoverflow.com/ques... 

How do I calculate tables size in Oracle

...BLE_NAME FORMAT A32 COLUMN OBJECT_NAME FORMAT A32 COLUMN OWNER FORMAT A10 SELECT owner, table_name, TRUNC(sum(bytes)/1024/1024) Meg, ROUND( ratio_to_report( sum(bytes) ) over () * 100) Percent FROM (SELECT segment_name table_name, owner, bytes FROM dba_segments WHERE segment_type IN...
https://stackoverflow.com/ques... 

Regex select all text between tags

What is the best way to select all the text between 2 tags - ex: the text between all the 'pre' tags on the page. 17 Answe...
https://stackoverflow.com/ques... 

How to avoid the “divide by zero” error in SQL?

...rder to avoid a "Division by zero" error we have programmed it like this: Select Case when divisor=0 then null Else dividend / divisor End ,,, But here is a much nicer way of doing it: Select dividend / NULLIF(divisor, 0) ... Now the only problem is to remember the NullIf bit, if I use the "/"...
https://stackoverflow.com/ques... 

How do I view the full content of a text or varchar(MAX) column in SQL Server 2008 Management Studio

...ta. DECLARE @S varchar(max) = 'A' SET @S = REPLICATE(@S,100000) + 'B' SELECT @S as [XML_F52E2B61-18A1-11d1-B105-00805F49916B] In SSMS (at least versions 2012 to current of 18.3) this displays the results as below Clicking on it opens the full results in the XML viewer. Scrolling to the rig...
https://stackoverflow.com/ques... 

Best way to do multi-row insert in Oracle?

...acle: insert into pager (PAG_ID,PAG_PARENT,PAG_NAME,PAG_ACTIVE) select 8000,0,'Multi 8000',1 from dual union all select 8001,0,'Multi 8001',1 from dual The thing to remember here is to use the from dual statement. (source) ...
https://stackoverflow.com/ques... 

On select change, get data attribute value

... You need to find the selected option: $(this).find(':selected').data('id') or $(this).find(':selected').attr('data-id') although the first method is preferred. shar...
https://stackoverflow.com/ques... 

How to set the first option on a select box using jQuery?

I have two HTML select boxes. I need to reset one select box when I make a selection in another. 17 Answers ...
https://stackoverflow.com/ques... 

Which are more performant, CTE or temporary tables?

...(A INT IDENTITY PRIMARY KEY, B INT , F CHAR(8000) NULL); INSERT INTO T(B) SELECT TOP (1000000) 0 + CAST(NEWID() AS BINARY(4)) FROM master..spt_values v1, master..spt_values v2; Example 1 WITH CTE1 AS ( SELECT A, ABS(B) AS Abs_B, F FROM T ) SELECT * FROM CTE1 WHERE A = 780 ...
https://stackoverflow.com/ques... 

SQL DROP TABLE foreign key constraint

...your table, you could use this SQL (if you're on SQL Server 2005 and up): SELECT * FROM sys.foreign_keys WHERE referenced_object_id = object_id('Student') and if there are any, with this statement here, you could create SQL statements to actually drop those FK relations: SELECT 'ALTER TABL...