Hi Guys,
I have the following table
To remove the overlapping rows like row GR4 2. The below query was used.
How do you go about removing one of the 2 3-hour entries under monday with a start time of 1710 and an end time of 2000? And likewise for tuesday where they are 2 3-hour entries for 1710 to 2000?
I have the following table
Code:
Room ID StartTime EndTime Monday Tuesday
GR4 1 0810 1700 9 9
GR4 2 0910 1300 4 4
GR4 3 0910 1700 0 0
GR4 4 1710 1800 0 0
GR4 5 1710 2000 0 3
GR4 6 1710 2000 3 0
GR4 7 1710 2000 3 3
GR4 8 1810 2100 0 0
LR11 1 0810 0900 0 1
LR11 2 0810 1000 0 0
LR11 3 0910 1000 0 1
LR11 4 0910 1100 2 0
LR11 5 1010 1100 0 0
LR11 6 1010 1200 0 0
LR11 7 1010 1200 0 2
LR11 8 1110 1200 0 0
LR11 9 1110 1200 1 0
LR11 10 1110 1300 0 0
LR11 11 1210 1300 0 0
LR11 12 1210 1300 0 1
LR11 13 1210 1400 2 0
LR11 14 1310 1400 0 0
LR11 15 1310 1500 0 0
LR11 16 1310 1600 0 3
LR11 17 1410 1600 0 0
LR11 18 1410 1600 2 0
LR11 19 1410 1700 0 0
LR11 20 1610 1800 0 2
LR11 21 1710 1800 0 0
LR11 22 1710 1900 2 0
LR11 23 1810 1900 0 0
LR11 24 1810 1900 0 1
LR11 25 1810 2000 0 0
LR11 26 1910 2000 0 0
LR11 27 1910 2000 0 1
LR11 28 2010 2100 1 0
LR11 29 2010 2300 0 3To remove the overlapping rows like row GR4 2. The below query was used.
Code:
select roomID,sum(Hours)TotalHours
FROM(
SELECT *
FROM Tbl a
WHERE NOT EXISTS
(SELECT *
FROM Tbl b
WHERE b.RoomID = a.RoomID
AND b.StartTime < a.StartTime AND b.EndTime > a.EndTime
)
)How do you go about removing one of the 2 3-hour entries under monday with a start time of 1710 and an end time of 2000? And likewise for tuesday where they are 2 3-hour entries for 1710 to 2000?