I am experiencing issues with Microsoft Access again. 🙂
I was tinkering with some settings and managed to get it working a few times, but now I am stuck. When I try to enforce referential integrity in the relationships window, I receive this error: "No unique index found for the referenced field of the primary table." I am unsure where my mistake lies. If anyone is knowledgeable in this area, could you please explain the specific requirements for linking two tables via a field while ensuring that integrity is maintained?
Additionally, I need guidance on how to implement the following logic:
Prevent entering a club ID in Table 123 if that club does not exist in Table 456.
Prevent deleting a club ID in Table 456 if there is an associated competitor from that club listed in Table 123, while still allowing the ID to be modified.
Finally, I have one more question:
What is the purpose of the Lookup feature, and in what scenarios should it be utilized?
Any assistance would be greatly appreciated.
I was tinkering with some settings and managed to get it working a few times, but now I am stuck. When I try to enforce referential integrity in the relationships window, I receive this error: "No unique index found for the referenced field of the primary table." I am unsure where my mistake lies. If anyone is knowledgeable in this area, could you please explain the specific requirements for linking two tables via a field while ensuring that integrity is maintained?
Additionally, I need guidance on how to implement the following logic:
Prevent entering a club ID in Table 123 if that club does not exist in Table 456.
Prevent deleting a club ID in Table 456 if there is an associated competitor from that club listed in Table 123, while still allowing the ID to be modified.
Finally, I have one more question:
What is the purpose of the Lookup feature, and in what scenarios should it be utilized?
Any assistance would be greatly appreciated.