"SQL SELECT * FROM Orders WHERE OrderDate>='2021-12-29' and OrderDate<='2021-12-31' SPL For .."

mars RaqForum 25 No.
324 View • 1 Years ago

7.2 Interval-based search

SQL

SELECT *
FROM Orders
WHERE OrderDate>='2021-12-29' and OrderDate<='2021-12-31'

SPL

For numeric and date type fields, interval-based searches are often needed. And sorting index is the only suitable one for those fields involving interval-based search.

	A
1	>st=date(“2021-12-29”), et=date(“2021-12-31”), start=days@o(st), end=days@o(et)
2	=file(“Orders.ctx”).open()
3	=A2.index(file(“Orders.ctx__OrderDate”);OrderDate)
4	=A2.icursor(;OrderDate>=start && OrderDate<=end).fetch()
5	=A2.close()