The PIVOT function in SQL Server is not used very often in projects I work on, but can be extremely useful for specific kinds of pages, especially when consumed in ASP.NET using GridView objects. Some people struggle with PIVOT on one field, the online documentation should be sufficient for...
Microsoft SQL Server是一种关系型数据库管理系统(RDBMS),它支持使用Pivot进行多个聚合函数的数据处理和分析。 Pivot是一种数据转换操作,它可以将行数据转换为列数据,使...
(<SELECT query that produces the data>)AS<alias for the source query>PIVOT(<aggregation function>(<column being aggregated>)FOR<column that contains the values that become column headers>IN(<first pivoted column>,<second pivoted column>, ...<last pivoted column>) )AS<alias for the pivot ...
(<SELECT query that produces the data>)AS<alias for the source query>PIVOT(<aggregation function>(<column being aggregated>)FOR<column that contains the values that become column headers>IN(<first pivoted column>,<second pivoted column>, ...<last pivoted column>) )AS<alias for the pivot ...
( SELECT query producing sql data for pivot -- select pivot columns as dimensions and -- value columns as measures from sql tables ) AS TableAlias PIVOT ( <aggregation function>(column for aggregation or measure column) -- MIN,MAX,SUM,etc FOR [] IN ( [first pivoted column], ..., [...
-- value columns as measures from sql tables ) AS TableAlias PIVOT ( <aggregation function>(column for aggregation or measure column) -- MIN,MAX,SUM,etc FOR [] IN ( [first pivoted column], ..., [last pivoted column] ) ) AS PivotTableAlias ...
SQL SERVER中 PIVOT和UNPIVOT的用法【分组统计】 USE LocalAppDB GO ---Use aggregate function SELECTC.customerid, city, CASE WHENCOUNT(orderid) = 0THEN'no_orders' WHENCOUNT(orderid) <= 2THEN'upto_two_orders' WHENCOUNT(orderid) > 2THEN'more_than_two_orders'...
针对sql2005 系统提供两个新的关键字 PIVOT 和UNPIVOT可用来作此类操作. 语法规则 <pivot_clause> ::= ( aggregate_function ( value_column ) FOR pivot_column IN ( <column_list> ) ) <unpivot_clause> ::= ( value_column FOR pivot_column IN ( <column_list> ) ) ...
Now, inside the brackets of the PIVOT clause, we add the aggregate function we want to use. We want to see the “number of sales in each store location”, and the num_sales field has this number, and we want to SUM these values. So, we use the SUM function. ...
针对此子组上的 aggregate_function 对 value_column 求值,其结果作为相应的 output_column 的值返回。如果该子组为空,SQL Server 将为该 output_column 生成空值。如果聚合函数是 COUNT ,且子组为空,则返回零 (0) 。 接着我们利用我们开头的例子来理解一下这个FROM 子句,很显然我们的col4 对应上面的value_co...