按年查询select to_char(date::DATE, 'YYYY') as year,sum(shares) as shares, sum(visits) as visits from database_tablewhere date >= '2019-01-01' anddate <= '2020-01-01'group by year order by year按月查询select to_char(date::DATE, 'YY..
WITH ROLLUP 在生成包含小计和合计的报表时，ROLLUP 运算符很有用。ROLLUP 运算符生成的结果集类似于 CUBE 运算符所生成的结果集。 复制代码 代码如下: SELECT [Source], COUNT(*) AS OrderTotal FROM [ExternalOrder] Where OrderStatus=1 AND (Ch..
设置AccessCount字段可以根据需求在特定的时间范围内如果是相同IP访问就在AccessCount上累加。 复制代码 代码如下:Create table Counter ( CounterID int identity(1,1) not null, IP varchar(20), AccessDateTime datetime, AccessCount int ) 该..
