BY w 当然,我可以将其重写为 SELECT id, sum(weight) OVER w-- Use random() to break tiesORDER BY weight DESC, random()
LIMIT 1; 但是除了缩短查询(我正在处理的完整查询要复杂得多,并且有几个窗口函数w),我想要捕获相同的random() 用于计算
SchoolName, row_number() OVER (PARTITION BY SchoolName ORDERBY Marks) rn WINDOW w AS (PARTITION BY SchoolName ORDER BY Marks)如果查询中有未使用的命名窗口并使用order子句,那么是否</e
在左侧面板数据中,而不忽略NULLS。需要模拟PostgreSQL中窗口函数(铅和滞后)中的Oracle忽略NULLS。SELECT empno, orig_salary,
LAG(orig_salary, 1, 0) IGNORE NULLS OVER (ORDER BY orig_salary) AS