大约有 49,000 项符合查询结果(耗时:0.0307秒) [XML]

https://stackoverflow.com/ques... 

SQL Server: Examples of PIVOTing String data

...l as numbers. This query will only require the table to be scanned once. SELECT Action, MAX( CASE data WHEN 'View' THEN data ELSE '' END ) ViewCol, MAX( CASE data WHEN 'Edit' THEN data ELSE '' END ) EditCol FROM t GROUP BY Action ...
https://stackoverflow.com/ques... 

Sql Server equivalent of a COUNTIF aggregate function

...u could use a SUM (not COUNT!) combined with a CASE statement, like this: SELECT SUM(CASE WHEN myColumn=1 THEN 1 ELSE 0 END) FROM AD_CurrentView Note: in my own test NULLs were not an issue, though this can be environment dependent. You could handle nulls such as: SELECT SUM(CASE WHEN ISNULL(myC...
https://stackoverflow.com/ques... 

SQL: capitalize first letter only [duplicate]

...t only for displaying and do not need the actual data in table to change: SELECT UPPER(LEFT(word,1))+LOWER(SUBSTRING(word,2,LEN(word))) FROM [yourtable] Hope this helps. EDIT: I realised about the '-' so here is my attempt to solve this problem in a function. CREATE FUNCTION [dbo].[CapitalizeFi...
https://stackoverflow.com/ques... 

Select distinct using linq [duplicate]

... myList.GroupBy(test => test.id) .Select(grp => grp.First()); Edit: as getting this IEnumerable<> into a List<> seems to be a mystery to many people, you can simply write: var result = myList.GroupBy(test => test.id) .S...
https://stackoverflow.com/ques... 

How do I get IntelliJ IDEA to display directories?

...correctly. Make sure the "Content Root" is correct. Click on the project Select "File"->"Project Structure" Select "modules" from the left column, and select a module. On the sources tab you will see the current "Content Root" along with a button to add a new content root. Make sure that con...
https://stackoverflow.com/ques... 

How to round an average to 2 decimal places in PostgreSQL?

... round that takes a precision is only available for numeric. regress=> SELECT round( float8 '3.1415927', 2 ); ERROR: function round(double precision, integer) does not exist regress=> \df *round* List of functions Schema | Name | Result data type | Argument...
https://stackoverflow.com/ques... 

How to print SQL statement in codeigniter model

...veRecord generated SQL: Before the query runs: $this->db->_compile_select(); And after it has run: $this->db->last_query(); share | improve this answer | ...
https://stackoverflow.com/ques... 

Convert INT to VARCHAR SQL

I am using Sybase and I am doing a select which returns me a column called "iftype", but its type is int and I need to convert into varchar. When I try to do the select without the convert function I get this error: ...
https://stackoverflow.com/ques... 

Is it possible to center text in select box?

...you could style the dropdown: https://www.filamentgroup.com/lab/jquery-ui-selectmenu-an-aria-accessible-plugin-for-styling-a-html-select.html This plugin hides the select element, and creates span elements etc on the fly to display a custom drop down list style. I'm quite confident you'd be able t...
https://stackoverflow.com/ques... 

XPath to select multiple tags

...l-name()='e'] is both too-long and incorrect. This XPath expression will select nodes like: OhMy:c NotWanted:d QuiteDifferent:e share | improve this answer | follow ...