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It is not an error of TDatabase but rather an error in logic.

practically now it seems that I do a search of the free rooms excluding the reservation concerned, how resolve ?

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If ROOM_ID = cROOM_ID
   oReservations:skip()
endif

Hi Silvio: If you do not use the cargo of each btnbmp, you can use that data to save an array with all the reservations that that umbrella has in the selected period. It's an idea. i did it this way open reservation filter reservation with my parameter( range date, number and ...

Silvio, As you have found, your current method is not going to help. Think outside the box. What would a reservation clerk at an expensive hotel do? What would they try first, and next, and after that, just trying to find a solution for the customer? Make a list in order of ...

Silvio, As you have found, your current method is not going to help. Think outside the box. What would a reservation clerk at an expensive hotel do? What would they try first, and next, and after that, just trying to find a solution for the customer? Make a list in order of ...

I am modifying a reservation in the reservation I have two datepick controls dFirst and dLast in Insertion I have no problems but in modification if the operator changes a date I always have to carry out a search to see if there is ...

... now it's ok now I'm here asking you something else once I have found the record in the Reserva.dbf file I have to load all the data I need for the reservation, in particular I should also search for invoice in the oRigheInvoice archive which would be the lines of the invoice body, and I have them ...

Silvio, I would present the customer a extra column with the income for that periode of reservation. (just to make your point) He will see that he will be losing 1 day of income and this will happen for every reservation period. (will become a lot of money) If he still ...

I have a reservation from 20.06.2021 to 14.08.2021 in a procedure that I have broken down by the interval of the months and I calculate the days for each month in this case the months of June, July and August are concerned https://i.postimg.cc/VLpnxq9n/agiorni.png ...

... then this doesn't matter--you can have ten customers with the same first and last names--they will each have a different CUSTNO. You just link the reservation by adding the CUSTNO to the reservation. And with this you can find the right customer information in the customer file from the reservation ...

... time a user cancels a new record entry. Is that the issue you are referring to? And by the way, how are they going to respond to not even having a reservation number (the way you are doing it now)? It just came to me. The way to use the primary key and have it displayed on the data entry screen ...

... is the way to avoid these kinds of problems. It also prevents you from having duplicate data in different files. For instance, all you need in a reservation database is the person's primary-key. This way the address (for instance) is only stored in the customer file, yet you can print the address ...

for the reservations program I show the list of services in an xbrowse, if I change my reservation and it doesn't have the services I must not show the xbrowse I tried with IF oBrw != NIL oBrw:Destroy() //end() Endif but nothing ...

Otto,

The sample for the reservation of table (yours) seems to be a far better sample for my purpose.
The sample is not on the sample list. Can I have access to it or should I contact you ?

tPLAN the problem of tplan : I use and open the archives exclusively in the old way because with tdata (base) I have an error when I move a reservation. the error comes out WITH TDATABASE when the class calls these methods: MoveReservation( oData, nRowId, oPlann ) ResizeReservation( oData, ...

Another sample reservation from 1/July to 29 July I set the price local n1Day := 9, n7Days := 60, n15Days := 120, n30Days := 180 ( see third row - the last columns on the right of the picture ) your calc made 232 cannot be good because ...