syntaxsql SELECT[<non-pivoted column>[AS<column name>] , ] ... [<first pivoted column>[AS<column name>] , [<second pivoted column>[AS<column name>] , ] ... [<last pivoted column>[AS<column name>] ] ]FROM(<SELECT
syntaxsql SELECT[<non-pivoted column>[AS<column name>] , ] ... [[AS<column name>] , ] [<new output column created for values in result of the source query>[AS<column name>] ]FROM(<SELECT query that produces the data>)AS<alias for the source query>UNPIVOT(<new output column creat...
--unpivot 语法SELECT[columns not unpivoted],[unpivot_column],[value_column],FROM()AS<aliasforthe source data>UNPIVOT([value_column]FOR[unpivot_column]IN(<column_list>))AS<aliasforunpivot>Where:--[columns not unpivoted]:没有被转换的列名。--[unpivot_column]:转换的各列所汇总到的单列的名称。...
usesSalesData+string SalesPerson+string SalesCategory+decimal AmountDynamicSQL+string QueryString+string Columns+void FetchColumns()+void BuildQuery()+void Execute() 旅行图 接着,我们使用 Mermaid 的旅行图展示实现的流程: journey title 动态获取 PIVOT IN 条件值的实现 section Step 1: 获取唯一值 获取Sales...
...[first pivoted column], [additional pivoted columns] FROM ( SELECT query producing sql data...for pivot -- select pivot columns as dimensions and -- value columns as measures from sql tables...server 2005的AdventureWorks,其实现的原理同上。
然後,指定 CROSS APPLY 運算子,以便將計畫控制代碼傳遞給 sys.dm_exec_query_plan。 目前在計畫快取中的每項計畫之 XML 顯示計畫輸出,都是在傳回的資料表之 query_plan 資料行中。 SQL 複製 USE master; GO SELECT dbid, object_id, query_plan FROM sys.dm_exec_cached_plans AS cp CROSS APPLY sys....
for [Month] in (' + @cols + ') ) p ' EXECUTE(@query) 这个查询的核心是使用了动态SQL语句来生成Pivot查询。首先,我们使用STUFF函数和XML PATH来生成一个包含所有月份的逗号分隔列表。然后,我们将这个列表插入到查询字符串中,以生成Pivot查询。 在这个查询中,我们使用了EXECUTE函数来执行动态SQL语句。这个函...
自SQL Server 2005起(差不多10年前了!),微软在T-SQL里引入PIVOT运算符。使用那个运算符你可以进行同样的转换(行到列),只要一个原生运算符即可。听起来很简单,很有前景,不是么?下列代码显示了使用原生PIVOT运算符进行同样的转换。 1--Perform the same query with the native PIVOT operator.2--The grouping ...
SQL Serverpivot1 Topic Most RecentMost ViewedMost Likes Dynamic Pivot in SQL Query without DECLARE I have a custom/dynamic SQL to PIVOT column values. As number of Columns are not fixed it could increase or decrease we cannot have normal PIVOT . Instead we need to identify columns dynamically...
Here's the query. SQL Copy -- Create the table and insert values as portrayed in the previous example. CREATE TABLE pvt (VendorID INT, Emp1 INT, Emp2 INT, Emp3 INT, Emp4 INT, Emp5 INT); GO INSERT INTO pvt VALUES (1,4,3,5,4,4); INSERT INTO pvt VALUES (2,4,1,5,5,...