高斯版本8.1.1,在oracle可以支持range between n preceding and n following,但在高斯里只能支持unbounded,unbounded不满足要求。请问还有什么方法可以支持呢?胡辣汤 帖子 167 回复 273 您提问了两个相同帖子,可以关注上一个帖子的回复 https://bbs.huaweicloud.com/forum/thread-196230-1-1.html 回复于2022-08-...
14 SUM(ID) over(ORDER BY ID RANGE BETWEEN unbounded preceding AND CURRENT ROW) range_unbound_sum, 15 SUM(ID) over(ORDER BY ID ROWS BETWEEN unbounded preceding AND CURRENT ROW) rows_unbound_sum, 16 SUM(ID) over(ORDER BY ID RANGE BETWEEN 1 preceding AND 2 following) range_sum, 17 SUM(...
sum(id) over(order by id rows between unbounded preceding and current row) as rows_sum, sum(id) over(order by id range between unbounded preceding and current row) as range_sum, sum(id) over(order by id rows between 1 preceding and 2 following) as rows_sum_1, sum(id) over(order ...
value PRECEDING:窗口从当前行向前value行开始 value FOLLOWING:窗口从当前行向后value行结束 示例: selectname,date,timestamp,number,-- 前1行_当前行sum(number)over(partitionbynameorderbytimestamprowsbetween1precedingandcurrentrow)assum_number_w1_row,-- 前1行_后1行sum(number)over(partitionbynameorderby...
When both ORDER BY and WINDOW clauses are missing, the WINDOW specification defaults toROW BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING. range是逻辑窗口,是指定当前行对应值的范围取值 rows是物理窗口,即根据order by 子句排序后,取的前N行及后N行的数据计算(与当前行的值无关,只与排序后的行号相关...
1.当order by后面的rows/range缺失时,默认是range between unbounded preceding and current row 2、range_sum 按照 order by 的值进行划分窗口大小,由于出现两个id = 1 的记录,两个1 会划分到同一个窗口,所以第一行和第二行两个1进行了求和都是2,第三行进行累加5,第4 5 6 三行都是6,再一次同时划分到...
oracle窗口函数中range interval配合一般用来针对指定时间范围进行统计。其中range表示范围,between...and 表示之前的范围和之后的范围 ,CURRENT ROW表示当前行,INTERVAL '1' day/month/year preceding/following 表示时间范围的选择。 --求采购订单成交记录中 同物料过去一年的采购平均单价 ...
●ROWS BETWEEN 1 PRECEDING AND 1 FOLLOWING :指当前行的上一行(ROWNUM-1)到当前行的下一行(ROWNUM+1)的数据 ●RANGE BETWEEN CURRENT ROW AND 350 FOLLOWING:指当前行到当前行数据+350的范围内的数据 ●RANGE BETWEEN 5 PRECEDING AND 5 FOLLOWING:指当前行数据幅度减5加5后的范围内的数据 2.ROWS和RANGE的...
WindowSpec RangeBetween (long start, long end); 參數 start Int64 界限開始,包含。 如果這是最小 long 值 Window.s_unboundedPreceding ,則框架是未系結的。 end Int64 界限結尾,包含。 如果這是最大長值 Window.s_unboundedFollowing ,框架就會取消系結。 傳回 WindowSpec WindowSpec 物件 適用...
NTH_VALUE(val, 2) OVER w AS 'second', NTH_VALUE(val, 4) OVER w AS 'fourth' FROM observations WINDOW w AS ( //window子句 PARTITION BY subject //partition子句 ORDER BY time //order子句 ROWS UNBOUNDED PRECEDING //frame子句 );