Getting Started Go to SQL Server Management Studio Check SQL Server version Writing Query Use LAG function in query Set LAG function parameters Running Query Run query and view results 旅行图示例 通过以上步骤,你应该可以成功使用SQL Server中的LAG函数了。希望这篇文章对你有所帮助!如果还有其他问题,欢迎...
SQL SERVER LEAD AND LAG FUNCTION The following explanation from MSDN LEAD provides access to a row at a given physical offset that follows the current row. Use this analytic function in a SELECT statement to compare values in the current row with values in a following row. LAG provides access...
For starters, the LEAD and LAG functions were first introduced in SQL Server 2012. They are window functions.The LEAD function is used to access data from SUBSEQUENT rows along with data from the current row.The LAG function is used to access data from PREVIOUS rows along with data from the...
SQL 複製 USE AdventureWorks2022; GO SELECT BusinessEntityID, YEAR(QuotaDate) AS SalesYear, SalesQuota AS CurrentQuota, LAG(SalesQuota, 1,0) OVER (ORDER BY YEAR(QuotaDate)) AS PreviousQuota FROM Sales.SalesPersonQuotaHistory WHERE BusinessEntityID = 275 AND YEAR(QuotaDate) IN ('2005','2006...
SQL USEAdventureWorks2022; GOSELECTTerritoryName, BusinessEntityID, SalesYTD, LAG (SalesYTD,1,0)OVER(PARTITIONBYTerritoryNameORDERBYSalesYTDDESC)ASPrevRepSalesFROMSales.vSalesPersonWHERETerritoryNameIN(N'Northwest', N'Canada')ORDERBYTerritoryName; ...
The Lag function is similar to the Lead function, except that the Lead function looks in the opposite direction to the Lag function. That is, Lag(n) is equivalent to Lead(-n).ExampleThe following example returns the value for December 2001:نسخ ...
Accesses data from a previous row in the same result set without the use of a self-join starting with SQL Server 2012 (11.x). LAG provides access to a row at a given physical offset that comes before the current row. Use this analytic function in a SELECT statement to compare values ...
SQL USEAdventureWorks2022; GOSELECTTerritoryName, BusinessEntityID, SalesYTD, LAG (SalesYTD,1,0)OVER(PARTITIONBYTerritoryNameORDERBYSalesYTDDESC)ASPrevRepSalesFROMSales.vSalesPersonWHERETerritoryNameIN(N'Northwest', N'Canada')ORDERBYTerritoryName; ...
These functions exist in Oracle, SQL Server, MySQL, and Postgres. LEAD Function Syntax and Parameters The syntax of the SQL LEAD function is: LEAD ( expression [, offset [, default] ] ) OVER ( [ query_partition_clause ] order_by_clause ) ...
Applies to:SQL Server Analysis Services Returns the time slice between the date of the current case and the last date of the training set. Syntax Lag() Return Type A scalar value of the type integer. Remarks If theLagfunction is used on a model where the KEY TIME column is located withi...