Question

5. what is look up field? ​

Answer 1

Answer:

It means taking care of the field.

Answer 2

Answer:

lookup field is a read-only field that displays values at runtime based on search criteria you specify. In its simplest form, a lookup field is passed the name of an existing field to search on, a field value to search for, and a different field in a lookup dataset whose value it should display.

For example, consider a mail-order application that enables an operator to use a lookup field to determine automatically the city and state that correspond to the zip code a customer provides. The column to search on might be called ZipTable.Zip, the value to search for is the customer's zip code as entered in Order.CustZip, and the values to return would be those for the ZipTable.City and ZipTable.State columns of the record where the value of ZipTable.Zip matches the current value in the Order.CustZip field.

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