STRING_AGG函数支持通过WITHIN GROUP (ORDER BY ...)子句来实现排序功能,代码如下: SELECTStudentID,STRING_AGG(CourseID,', ')WITHINGROUP(ORDERBYRegistrationTime)ASRegisteredCoursesFROMCourseRegistrationsGROUPBYStudentID; 1. 2. 3.
When I run que query in SQL Server it works just fine and I get the expected output, however when I test the same exact query in service studio I get an error and the same happens when the application tries to run the query. I am not sure if has something to do with out...
使用新添加的STRING_AGG函数(在 SQL Server 2017 中),如以下查询所示,我可以获得下面的结果集。 SELECT ProjectID, STRING_AGG( newID.value, ',') WITHIN GROUP (ORDER BY newID.value) AS NewField FROM [dbo].[Data] WITH(NOLOCK) CROSS APPLY STRING_SPLIT([bID],';') AS newID WHERE newID.value ...
Transact-SQL 語法慣例 語法 STRING_AGG ( expression , separator ) [ <order_clause> ] <order_clause> ::= WITHIN GROUP ( ORDER BY <order_by_expression_list> [ ASC | DESC ] ) 引數 expression 任何類型的表示式。 表達式會在串連期間轉換成nvarchar或varchar類型。 非字串類型會轉換成 nvarchar 類...
<order_clause>is available with database compatibility level 110 and above. Examples The code samples in this article use theAdventureWorks2022orAdventureWorksDW2022sample database, which you can download from theMicrosoft SQL Server Samples and Community Projectshome page. ...
SELECT STRING_AGG([value], ',') WITHIN GROUP (ORDER BY[value])FROM (SELECT[value]FROM STRING_SPLIT(@str,',')) source Source Code 或者使⽤⼀般资料表运算式CTE (Common Table Expression);WITH dump_data AS (SELECT[value]FROM STRING_SPLIT(@str,','))SELECT STRING_AGG([value], ',')...
使用CREATE ASSEMBLY 语句在 SQL Server 中注册程序集 搜索 程序集(数据库引擎 CREATE ASSEMBLY StringAgg FROM 'c:\StringAgg.dll' WITH PERMISSION_SET = SAFE; 启用SQL Server 运行 CLR 代码的功能 exec sp_configure 'clr enabled',1 RECONFIGURE WITH OVERRIDE; ...
The following example replaces null values with 'N/A' and returns the names separated by commas in a single result cell.SQL Kopyala USE AdventureWorks2022; GO SELECT STRING_AGG(CONVERT(NVARCHAR(max), ISNULL(FirstName,'N/A')), ',') AS csv FROM Person.Person; GO ...
repo #安装 SQL Server yum install -y mssql-server #选择 SQL Server 的一个版本: 1) ...
SELECTSTRING_AGG([value],',') WITHINGROUP(ORDERBY[value])FROM(SELECT[value]FROMSTRING_SPLIT(@str,',')) source 1. 2. Source Code 或者使用一般资料表运算式CTE (Common Table Expression) ;WITHdump_dataAS(SELECT[value]FROMSTRING_SPLIT(@str,',') ...