Oracle Error Message
ORA-28504: ROWID not found in ROWID cache for heterogeneous database link
Reason for the Error
The ROWID cache for Heterogeneous Services held no entry that corresponds to the specified ROWID. The ROWID entry may have been overwritten in the ROWID cache.
Solution
Enlarge the Heterogeneous Services ROWID cache size by increasing the value of the Heterogenous Services initialization parameter HS_ROWID_CACHE_SIZE.