Member Avatar for kevin7807

I am doing a facilities reservation database. Situation as below:
Every member has a membership which is authorized some facilities. Therefore, if a member reserve a facilities which is not authorized to his membership, it need to be charged and store into the reservation record table as an attribute reservation_fees.
How can i do the constraint? or check?

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@kevin7807

How can i do the constraint? or check?

Try to provide a table and explain with the table so it would be easier to visualized the query.

This is the table I came up with base on your words:

Table: facilities
--------------------
Field Name: ID
Data Type: Member

Field Name: Authorized
Data Type: Membership

Field Name: Reservation
Data Type: Date/Time

Field Name: Fees
Data Type: Number
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