Prevent duplicate data entry

Discussion created by fawad001 on Oct 5, 2018
Latest reply on Oct 5, 2018 by philmodjunk

But if the case is different like

Table A                                                                                          Table B

Invoice Number      Inventory Number                                           Inventory Number

101                              100001                                                       100001

101                              100002                                                       100002

102                              100001                                                       100003

102                              100002

Note: Inventory Number in Table A is inserting from Table B by using a script.

Now, I want to prevent the duplicate entry that in Table A, if invoice number 101 has the inventory number 100002 don't get an insert it from Table B.

I think unique value validation will not work in this case. Looking for the suggestions.




alex  philmodjunk