DECLARE@ColumnsNVARCHAR(MAX);DECLARE@SQLNVARCHAR(MAX);-- 获取所有不同的产品名称SELECT@Columns=STRING_AGG(QUOTENAME(Product),',')FROM(SELECTDISTINCTProductFROMSales)ASProducts;-- 动态构建 SQL 查询SET@SQL=N' SELECT Region, '+@Columns+' FROM (SELECT Region, Product, Amount FROM Sales) AS Source...
Pivoting is a technique used to rotate(transpose) rows to columns. It turns the unique values from one column in one table or table expression into multiple columns in another table. SQL Server 2005 introduced the PIVOT operator as a syntax extension for table expression in the FROM clause. P...
You can use the PIVOT and UNPIVOT relational operators to change a table-valued expression into another table. PIVOT rotates a table-valued expression by turning the unique values from one column in the expression into multiple columns in the output. PIVOT also runs aggregations where they're req...
You can use thePIVOTandUNPIVOTrelational operators to change a table-valued expression into another table.PIVOTrotates a table-valued expression by turning the unique values from one column in the expression into multiple columns in the output.PIVOTalso runs aggregations where they're required on any...
In addition to the simple example above, the SQL PIVOT operator can be used in more complex scenarios, such as: Pivoting multiple columns You can pivot more than one column by including additional aggregation functions and pivoted columns in your query. This allows you to analyze multiple attribu...
SQL Server Azure SQL Database Azure SQL Managed Instance Sets Transact-SQL and query processing behaviors to be compatible with the specified version of the SQL engine. For other ALTER DATABASE options, seeALTER DATABASE. For more information about the syntax conven...
Specifies that the input table is narrowed from multiple columns in column_list into a single column called pivot_column. For more information about PIVOT and UNPIVOT, see Using PIVOT and UNPIVOT. AS OF <date_time> Applies to: SQL Server 2016 (13.x) and later versions, and SQL Database....
You can use the PIVOT and UNPIVOT relational operators to change a table-valued expression into another table. PIVOT rotates a table-valued expression by turning the unique values from one column in the expression into multiple columns in the output. And PIVOT runs aggregations where they're ...
You can use the PIVOT and UNPIVOT relational operators to change a table-valued expression into another table. PIVOT rotates a table-valued expression by turning the unique values from one column in the expression into multiple columns in the output. And PIVOT runs aggregations where they're ...
Using multiple PIVOT operators The PIVOT operator can include only one aggregation. To include multiple aggregations with the PIVOT operator we would need to have multiple pivots and join them, as well as adding all the necessary columns to the Select list. ...