摘要： USE tempdb;GOIF OBJECT_ID('dbo.T1') IS NOT NULLDROP TABLE dbo.T1GOCREATE TABLE dbo.T1(col1 INT NOT NULL PRIMARY KEY);INSERT INTO dbo.T1(col1) VALUES(1);INSERT INTO dbo.T1(col1) VALUES(2);INSERT INTO d... 阅读全文

摘要： SQL2005排名函数Row_Number()定义:只能出现在Select或者Order By子句中格式:Row_Number() Over([Partition By col_list] Order By col_list)解释:Over([分区列] 排序列)为了计算排名值,优化器需要先按分区列再按排序列对数据排序创建示例表插入10W条数据declare @i int,@Title nvarch... 阅读全文