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MaryLee
Starting Member
8 Posts |
 Posted - 2010-11-10 : 15:48:43
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| Hello I have the following sql statement which add booking Id in the room table when customer choose a room"Update Room set bookinID=id where room_type=single"the problem is this sql statement updates all records in the room table whose type are single " seems like the customer book all these rooms"How can I make sql statement update only for the first record which vrify the above sql sataement.Note: I have two tables one for booking and the other for room and I add bookingID as a foreign key in the Room table.... |
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TimSman
Posting Yak Master
127 Posts |
Posted - 2010-11-10 : 15:50:15
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| So you only want to update one row of the table? |
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MaryLee
Starting Member
8 Posts |
Posted - 2010-11-10 : 17:18:16
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| yes !!but I can solve this problem if you tell me how can I make a relationship between two table one is Room and one is booking this is for a hotel system should I take roomId as aforegn key to booking table or should I take bookingId as aforeign key to the room table. this is the field of each table Table Room (contains these fields)RoomIDRoomTypeRoomPriceTable Booking (contains these fields)BookingIDcheckin checkout |
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TimSman
Posting Yak Master
127 Posts |
Posted - 2010-11-10 : 17:30:19
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| OK, I would think that the rooms don't change very often in a hotel (in fact, I can speak with a certain level of certainty on this). So, your booking table should have a foreign key field for RoomID. Each booking should have a RoomID, although I suppose one could make the case for it not having one right away.Once you have that, you should be able to link the two.Of course, you still can't update one row in the booking table by using roomID, unless roomID has only been used once so far. Otherwise, you need to know the bookingID.Make sense? |
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MaryLee
Starting Member
8 Posts |
Posted - 2010-11-10 : 17:34:25
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| I do not Understand thisOf course, you still can't update one row in the booking table by using roomID, unless roomID has only been used once so far. Otherwise, you need to know the bookingID. |
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madhivanan
Premature Yak Congratulator
22864 Posts |
Posted - 2010-11-11 : 05:00:02
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| Post some sample data with expected resultMadhivananFailing to plan is Planning to fail |
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changing only the first record