To answer this question, we need to understand the meaning of Return Code 23 in the context of searching in a VSAM file.
Return Code 23 in VSAM indicates an "Invalid Key." This means that the key value provided during the search operation does not exist in the VSAM file. The search operation was unable to find a matching record with the specified key.
Let's go through each option to understand why it is correct or incorrect:
Option A) (A) Valid Key - This option is incorrect because Return Code 23 indicates an invalid key, not a valid key.
Option B) (B) Duplicate Key - This option is incorrect because Return Code 23 does not indicate a duplicate key. It specifically indicates an invalid key.
Option C) (C) Invalid Key - This option is correct because Return Code 23 in VSAM signifies an invalid key.
Option D) (D) Empty VSAM file - This option is incorrect because Return Code 23 does not indicate an empty VSAM file. It pertains to an invalid key.
Therefore, the correct answer is Option C) (C) Invalid Key. This option is correct because Return Code 23 signifies an invalid key in a VSAM file.