WITH x AS (
SELECT t1.time_rent AS t1,
t2.time_rent AS t2,
((SUBSTR(t1.time_rent,1,2) * 3600) + (SUBSTR(t1.time_rent,4,2) * 60)
+ (SUBSTR(t2.time_rent,1,2) * 3600) + (SUBSTR(t2.time_rent,4,2) * 60)) AS t
FROM table1 t1
INNER JOIN Table2 t2
ON t1.name=t2.name
),
y AS(
SELECT t1,
t2,
numtodsinterval(t,'second') AS t
FROM x
)
SELECT T1,
T2,
(EXTRACT(day FROM t) * 24 + EXTRACT(hour FROM t) ||':' ||
EXTRACT(minute FROM t) ||':' || EXTRACT(second FROM t)) AS duration
FROM y
Utdata
T1 T2 DURATION
07:30 18:30 26:0:0
Livedemo