sql period overlap
-- table1 <-----row 1 interval------->
-- table2 <---find this--> <--and this--> <--and this-->
SELECT *
FROM table1,table2
WHERE table2.start <= table1.end
AND (table2.end IS NULL OR table2.end >= table1.start)sql period overlap
-- table1 <-----row 1 interval------->
-- table2 <---find this--> <--and this--> <--and this-->
SELECT *
FROM table1,table2
WHERE table2.start <= table1.end
AND (table2.end IS NULL OR table2.end >= table1.start)Copyright © 2021 Codeinu
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