rows between …… and ……
unbounded preceding 起始行
unbounded following 结尾行
current row 当前行
1 preceding 前1行
1 following 后1行
示例:
rows between unbounded preceding and unbounded following
表示起始行到末尾行(分组范围内)
rows between …… and ……
unbounded preceding 起始行
unbounded following 结尾行
current row 当前行
1 preceding 前1行
1 following 后1行
示例:
rows between unbounded preceding and unbounded following
表示起始行到末尾行(分组范围内)